Siemens SIMATIC C7-626 Installation, Assembly, Wiring Download Page 91

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6-5

C7-626 / C7-626 DP Control Systems
C79000-G7076-C626-01

6.1.1

Connecting Voltage and Current Transducers

The abbreviations and mnemonics used in Figures 6-3 to 6-4 have the
following meanings:

AIx-X:

Measuring line AIx-I or AIx-U

AIx-M:

Reference potential of the measuring line

ANA

Reference potential of the analog measuring circuit

Figure 6-3 shows the connection of voltage transducers to an isolated analog
input.

ANA

ADC

–

C7 CPU

Lo
gic

AIx-U

AIx-M

AIx-U

AIx-M

Figure 6-3

Connecting Voltage Transducers to an Isolated Analog Input

4-wire transducers possess a separate voltage supply. Figure 6-4 shows the
connection of current transducers as 4-wire transducers to a non-isolated
analog input module.

ANA

ADC

Transducers, e.g.
pressure gauges

transducers

4-wire

+
–

L+ M

C7 CPU

Lo
gic

AIx-U

AIx-M

AIx-U

AIx-M

Figure 6-4

Connecting 4-Wire Transducers to a Non-Isolated Analog Input Module

Abbreviations and
Mnemonics

Connecting
Voltage
Transducers

Connecting
Current
Transducers as
4-Wire
Transducers

C7 Analog Input/Output

Summary of Contents for SIMATIC C7-626

Page 1: ...A JAWNA Jana Dlugosza 2 6 Street 51 162 Wrocław Poland biuro rgbelektronika pl 48 71 325 15 05 www rgbautomatyka pl www rgbelektronika pl DATASHEET www rgbautomatyka pl www rgbelektronika pl OTHER SYMBOLS KEYPAD 6ES7626 2AG00 0AE3 SIEMENS ...

Page 2: ...ed with a wide variety of tools and having several testing stands at their disposal are a guarantee of the highest quality service OUR SERVICES ENCODERS SERVO DRIVERS LINEAR ENCODERS SERVO AMPLIFIERS CNC MACHINES MOTORS POWER SUPPLIERS OPERATOR PANELS CNC CONTROLS INDUSTRIAL COMPUTERS PLC SYSTEMS Repair this product with RGB ELEKTRONIKA ORDER A DIAGNOSIS Buy this product at RGB AUTOMATYKA BUY ...

Page 3: ... Programming Device to a C7 4 Inputs Outputs C7 Digital Input Output 5 C7 Analog Input Output 6 Universal Inputs 7 Maintenance 8 Appendices General Technical Specifications A Guidelines for Handling Electrostatically Sensitive Devices ESD B Glossary Index C79000 G7076 C626 01 C7 626 C7 626 DP Control Systems Volume 1 Installation Assembly Wiring Manual SIMATIC ...

Page 4: ...ionsdescribedinthecatalogorthetechnical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens Thisproductcanonlyfunctioncorrectlyandsafelyifitistransported stored setup andinstalledcorrectly and operated and maintained as recommended SIMATICR and SINECR are registered trademarks of SIEMENS AG Third parties using fo...

Page 5: ... installation of the C7 at the location of use and who bring the C7 to a state of readiness for immediate use S Volume 2 Users who create control programs and O I configurations load them into the C7 and print out screen displays and messages This manual describes the hardware and software of the C7 626 and C7 626 DP It consists of two volumes Volume 1 of the manual covers the following topics S I...

Page 6: ...ad the device type description C7 626 or C7 626 DP will be referred to throughout the manual as C7 This manual is valid for the following C7s C7 Order Number C7 626 6ES7626 1AG00 0AE3 C7 626 DP 6ES7626 2AG00 0AE3 This manual is available under order number 6ES7626 1AE00 8BA0 This manual describes the C7 626 and C7 626 DP For programming expanding and configuring a C7 you also require the following...

Page 7: ...gramming Assigning parameters Configuring Expanding ProTool Hardware and Installation If required Statement List for S7 300 and S7 400 Ladder Logic for S7 300 and S7 400 System and Standard Functions STEP 7 User Manual Program Design Module Specifications Preface ...

Page 8: ...ent List for S7 300 S7 400 Programming Manual or Ladder Logic for S7 300 S7 400 Programming Manual Reference manual for programming with STL or LAD S Basics for working with STL LAD for example structure of STL LAD number formats syntax S Description of all operations in STEP 7 with programming examples S Description of the different addressing possibilities in STEP 7 with examples S Description o...

Page 9: ...in the user program for example error OBs status word S7 300 Programmable Controller Installation and Hardware Describes the hardware of the S7 300 S Electrical configuration of the S7 300 S Installing the S7 300 S Wiring and preparing the S7 300 for operation S Characteristics and technical specifications of the S7 300 modules S7 300 M7 300 Programmable Controllers Module Specifications Reference...

Page 10: ...a Glossary containing important technical terms used in the manual S At the end of the manual there is a detailed index The C7 control system conforms to standards as described in Appendix A 1 If you have any questions concerning the C7 control system please contact your local Siemens representative You will find a list of Siemens representatives worldwide in Volume 2 of the manual Appendix E If y...

Page 11: ... 11 Starting Up 2 24 2 11 1 With a Loaded Configuration in the C7 OP 2 25 2 11 2 Without a Loaded Configuration in the C7 OP 2 26 2 12 Status and Error LEDs on the C7 2 27 3 Configuring MPI Networks and PROFIBUS DP Networks 3 1 3 1 Setting Up a Network 3 2 3 2 Rules for Configuring a Network 3 5 3 3 Cable Lengths 3 12 3 4 Network Components 3 15 3 5 Bus Connectors 3 17 3 5 1 PROFIBUS Bus Connector...

Page 12: ...on 6 15 7 Universal Inputs 7 1 8 Maintenance 8 1 8 1 Changing and Disposing of the Back Up Battery 8 2 8 2 Replacing the C7 8 6 A General Technical Specifications A 1 A 1 Technical Specifications A 2 A 2 Notes on the CE Marking A 5 A 3 Notes for the Machine Manufacturer A 6 A 4 Transport and Storage Conditions for Back Up Batteries A 7 B Guidelines for Handling Electrostatically Sensitive Devices ...

Page 13: ...ith a first impression of the two units This chapter also tells you which additional components you can connect to a C7 device To operate the C7 you require the following accessories S Programming device PG or PC with a multipoint interface and programming device cable S You must load the following on to the programming device or PC the STEP 7 applications ProTool Overview Accessories for Operatin...

Page 14: ...riants With a graphics display digital and analog inputs and outputs multipoint interface and IM360 interface module The C7 626 DP is identical to the C7 626 but has the additional feature of a PROFIBUS DP interface module Figure 1 1 C7 626 or C7 626 DP Introduction C7 626 C7 626 DP Product Overview ...

Page 15: ...dently of each other and can communicate with each other via the internally looped C7 multipoint interface MPI S C7 CPU S C7 OP These components will be referred to explicitly in the manuals as required In addition to the connections to the process you can also connect different components to the C7 The most important components and their functions are listed in Table 1 1 Table 1 1 Connectable Com...

Page 16: ...CP 342 5 DP for linking to SINEC L2 DP S7 300 CPU communicates via the MPI with the C7 and or other nodes on an MPI network S7 400 CPU communicates via the MPI with the C7 and or other nodes on an MPI network Operator Panels OP executes operator interface functions and communicates with the C7 via the multipoint interface PROFIBUS bus cable with bus connector connects nodes on an MPI network or L2...

Page 17: ...the C7 RS 485 repeater for amplifying the signals in an MPI network or L2 DP network and for linking segments of an MPI or L2 DP network Figure 1 2 shows some possible connections to other devices and the connection of signal inputs IM361 C7 S7 300 modules S7 300 PG Printer Digital inputs outputs Universal inputs Analog inputs outputs OP 25 PROFIBUS DP connection Multipoint interface MPI Figure 1 ...

Page 18: ...1 1 6 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Product Overview ...

Page 19: ... Environment 2 9 2 5 Electrical Installation and Connector Pin Assignment 2 10 2 6 Setup Guidelines for Interference Proof Installation 2 16 2 7 Connecting Shielded Cables 2 18 2 8 Keying Connectors 2 19 2 9 Arrangement of Additional S7 300 Modules 2 20 2 10 C7 Clocks 2 22 2 11 Starting Up 2 24 2 11 1 With a Loaded configuration in the C7 OP 2 25 2 11 2 Without a Loaded Configuration in the C7 OP ...

Page 20: ... can be ordered as C7 specific accessories S C7 626 C7 626 DP Control Systems manual comprising two volumes in the languages German 6ES7 626 1AE00 8AA0 English 6ES7 626 1AE00 8BA0 French 6ES7 626 1AE00 8CA0 Spanish 6ES7 626 1AE00 8DA0 Italian 6ES7 626 1AE00 8EA0 S Plug connectors for C7 I O with coding keys and coding sliders 6ES7 623 1AE00 4AA0 The following components can be ordered as important...

Page 21: ...V 1440 2C max 16 m S Serial cable PG C7 6XV 1440 2K The following applies for the length key of both cables 6XV1440 2Cjjj Multiplier 0 01 m 0 1 m 1 0 m 10 0 m 100 0 m E H N T U 1 1 1 1 2 2 3 4 5 6 6 8 Length digit 10 12 15 16 20 25 32 40 50 60 63 80 0 2 5 6 0 5 2 0 0 0 3 0 Installing and Preparing the C7 ...

Page 22: ...e strips must be cut off exactly along the marked line If the labeling strips are too large they cannot be inserted into the keyboard Labeling strips can only be changed when the C7 is not installed The sealing ring should be replaced Proceed as follows Step Action 1 Cut off the corners of the labeling strip that are marked with a C7 626 K1 K10 2 If possible hold the labeling strip at the end you ...

Page 23: ...2 2 5 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Labeling Strips Labeling Strips Figure 2 1 Inserting Labeling Strips Installing and Preparing the C7 ...

Page 24: ...ure 2 2 3 Insert the C7 in the cutout in the control panel 4 Insert the four fixing brackets see Figure 2 4 into the guides provided Push the fixing brackets in until the spring engages 5 Screw the four fixing screws enclosed with the C7 into the four fixing brackets enclosed see Figure 2 5 approximately two to three turns 6 Tighten the four screws with a screwdriver Insert sealing ring here Figur...

Page 25: ... 626 DP Control Systems C79000 G7076 C626 01 Figure 2 4 Fixing Bracket Before Engaging Figure 2 5 Fixing Bracket Engaged with Screw Fixing Bracket Before Engaging Fixing Bracket Engaged Installing and Preparing the C7 ...

Page 26: ...oceed as follows when loosening the fixing bracket Step Action 1 Loosen screw 2 Lift fixing bracket in Figure 2 6 3 Push fixing bracket out of guide in Figure 2 6 Figure 2 6 Loosening the Fixing Bracket Loosening the Fixing Bracket Installing and Preparing the C7 ...

Page 27: ...g ring fits tightly in all places S A gap of 50 to 70 mm from a housing wall must be observed on the sides of the C7 as shown in Figure 2 7 S The sealing ring on the frontplate must sit perfectly S The tabs of the insertion strips must not be caught S The C7 must be protected from direct sunlight 50 50 70 70 Figure 2 7 Gap Dimensions to be Observed when Installing the C7 Arranging the C7 Installin...

Page 28: ...Digital outputs bottom Top Bottom Left Right Figure 2 8 A View of the C7 with External I O Interfaces Tables 2 1 to 2 6 show the pin assignments for the following C7 connectors Table 2 1 Pin Assignments of the Digital Inputs Pin No Signal Explanation 0 0 I0 0 Digital input 0 0 1 I0 1 Digital input 1 0 2 I0 2 Digital input 2 0 3 I0 3 Digital input 3 0 4 I0 4 Digital input 4 0 5 I0 5 Digital input 5...

Page 29: ...of the Digital Outputs Pin No Signal Explanation 0 0 Q0 0 Digital output 0 0 1 Q0 1 Digital output 1 0 2 Q0 2 Digital output 2 0 3 Q0 3 Digital output 3 0 4 Q0 4 Digital output 4 0 5 Q0 5 Digital output 5 0 6 Q0 6 Digital output 6 0 7 Q0 7 Digital output 7 1 0 Q1 0 Digital output 8 1 1 Q1 1 Digital output 9 1 2 Q1 2 Digital output 10 1 3 Q1 3 Digital output 11 1 4 Q1 4 Digital output 12 1 5 Q1 5 D...

Page 30: ...e AI4 I Analog input 4 signal input for current AI4 M Analog input 4 reference potential MANA Reference potential of analog measuring circuit AO U Analog output signal output for voltage AO I Analog output signal output for current AO M Analog output reference potential Table 2 4 Pin Assignments of the Universal Inputs Pin No Explanation M Relevant ground DI X1 Universal input 1 digital input inte...

Page 31: ... A 2M Relevant ground for DO 0 0 DQ0 7 3L 24 volt supply for DO 1 0 DQ1 7 approx 2 A 3L 24 volt supply for DO 1 0 DQ1 7 approx 2 A 3M Relevant ground for DO 1 0 DQ1 7 Table 2 6 Pin Assignments for the V 24 Serial Interface for printer etc Pin No Explanation 1 C7 M reference potential 2 3 RxD 4 TxD 5 CTS 6 7 8 C7 M reference potential 9 10 RTS 11 12 C7 M reference potential 13 14 15 C7 M reference ...

Page 32: ...C7 power supply Pin No Explanation 1 NC 2 M24V 3 RS485 line B 4 RTSAS 5 M5V 6 P5V 7 P24V 8 RS485 line A 9 NC Pin No Explanation 1 L 2 M ground M24V 3 A authorization input 4 AE authorization input ground Connect the functional earth terminal see Figure 2 9 to the cabinet ground taking the shortest route and using a cable lug and a cable with a minimum cross section of 4 mm Functional Earth Install...

Page 33: ...ried cable and bus connectors without PG type connector with PG type connector and PROFIBUS bus terminal RS 485 with 1 5 m cable with 3 m cable with PG type connector and 1 5 m cable User must make own cable C7 PG PC C7 OP C7 C7 C7 S7 300 C7 S7 400 V 24 serial interface Serial interface printer cable For Siemens printers DR210 211 2303 231 N See Catalog ST80 1 C7 Printer C7 PG PC IM361 IM361 cable...

Page 34: ...signals resulting from the process should be kept away from the hardware setup where possible Devices which could bring in interference signals from outside should be installed at the bottom of the cabinet Place the grounding rail directly at the cabinet entrance so that cables which could be carrying interference signals can be placed directly on the grounding potential Place all shielded lines w...

Page 35: ...s carrying interference signals to a separate operating ground isolated from the central grounding point of the cabinet surface grounding with housing construction reinforcement To protect your device from overvoltage and lightning please observe the guidelines in 70 Section 4 11 For routing wires within buildings please observe the guidelines in 70 Section 4 8 Protection Against Overvoltage Insta...

Page 36: ...r and shielding clips supplied with the C7 1 Unfasten the two screws on the C7 as shown in Figure 2 10 2 Position the grounding bar as shown in Figure 2 10 and fix this in place with the previously removed screw 3 Affix the shielding clips to the grounding bar as shown in Figure 2 10 4 Press the insulated cable into these shielding clips in such a way as to achieve optimal contact of the cable shi...

Page 37: ...r without polarity reversal Proceed as follows 1 Insert the solid coding key into the notches provided on the connector part 2 Insert the profiled coding key into the respective cutouts on the housing part Solid and profiled coding keys that face each other prevent the connector from being plugged in The connector can be plugged in if solid and profiled coding keys do not face each other 1 2 3 4 5...

Page 38: ... the IM standard cable see also Figure 2 8 for connecting the C7 When the C7 is first started up it detects any additional connected modules The C7 has an integral IM 360 interface module for I O expansion with an external S7 standard I O This interface module is characterized by the following features S Data transmission from the IM 360 to the IM 361 of the first rack expansion via a 368 connecti...

Page 39: ...able 368 connecting cable 2 3 4 5 6 11 Rack 3 3 4 5 6 7 8 9 10 11 3 4 5 6 7 8 9 10 11 Slot number 3 4 5 6 7 8 9 10 11 Slot number Slot number Slot number Rack 2 Rack 1 Customer specific module IM 361 IM 361 IM 361 Figure 2 12 Maximum Configuration of the Slots of a C7 Installing and Preparing the C7 ...

Page 40: ...ogram with SFC0 SET_CLK With SFC1 READ_CLK you can read the current time of day see the reference manual 235 The C7 must always be backed up with a battery The clocks in the C7 continue to run during power off The clock in the C7 OP is independent of the clock in the C7 CPU The clock is supplied with the following value set 01 01 94 00 00 The clock time can be set S Via the user program and interf...

Page 41: ...un time meter You can use this meter to keep count of the operating hours of the C7 CPU or of any controlled equipment You program the run time meter in the user program with the SFCs 2 SET_RTM 3 CTRL_RTM and 4 READ_RTM see the reference manual 235 Run Time Meter Installing and Preparing the C7 ...

Page 42: ...eloaded configuration You can therefore carry out a startup with the existing configuration However if the configuration no longer exists for example after a reset you must carry out a startup without any configuration This section explains how to proceed in these cases Overview Installing and Preparing the C7 ...

Page 43: ...llowing startup will be carried out 1 The C7 carries out a self test after power on 2 The C7 carries out an operating system test for both parts C7 CPU and C7 OP 3 During the start up phase 1 and 2 the C7 CPU remains in STOP mode Once the C7 OP has been started up the following basic screen will be displayed 399 Startup complete Basic C7 626 picture 1 2 3 4 5 Softkey icons for selecting standard p...

Page 44: ...ly As no configuration is loaded the C7 automatically goes into transfer mode and waits for a data transfer 3 Transfer the configuration from the programming device PC to the C7 OP The firmware of the C7 OP is automatically transferred as well After a successful transfer the C7 OP is restarted S Message 339 Startup complete can be removed by pressing and the basic screen is then displayed 339 Star...

Page 45: ...0000000 0 7 0 0 00000000 1 7 1 0 DO 11001000 0 7 0 0 10101000 1 7 1 0 CPU MODE RUN RUN P RUN STOP MRES ESC Figure 2 15 C7 CPU Operating Modes Menu with Corresponding Function Keys With the softkeys F9 F14 you can select one of the C7 CPU operating modes displayed on the screen Choosing a C7 CPU Operating Mode Installing and Preparing the C7 ...

Page 46: ...fault error in the internal I O functions You must use a programming device and display the contents of the diagnostic buffer to determine the exact nature of the error fault BAF red Battery fault Lights up if the battery S has too little voltage S is defective S is missing DC5V green 5 VDC supply for C7 Lights up if the internal 5 V voltage is O K FRCE yellow Reserved RUN green Operating mode of ...

Page 47: ...the relevant section Since the setup of an MPI network does not differ from that of a PROFIBUS DP network this section will simply refer to setting up a network You must assign MPI L2 addresses to the individual nodes of an MPI or PROFIBUS DP network to enable them to communicate with each other How you assign these addresses and what rules you must observe are described in the STEP 7 manuals In S...

Page 48: ... field bus PROFIBUS DP and addressed as local I Os The DP transmission rate of the C7 626 DP can be set up to 12 Mbps The following table shows which nodes you can use to set up a network MPI PROFIBUS DP only with C7 626 DP Programming devices PG PC Programming device PG PC Operator interface devices OP Operator interface devices OP S7 300 M7 300 DP masters C7 CPU DP S7 400 M7 400 Additional DP ma...

Page 49: ...OFIBUS DP slaves by using the switch on the slave Note The RS 485 repeater has no MPI L2 address Table 3 1 contains all permissible MPI L2 addresses Table 3 1 Permissible MPI L2 Addresses MPI Addresses L2 Addresses 0 to 126 0 to 125 of which reserved 0 for programming device 1 for C7 OP 2 for C7 CPU of which reserved 0 for programming device The following table shows the default MPI addresses with...

Page 50: ...U 2 C7 CP CP IM361 Figure 3 1 Automatic Assignment of MPI Addresses for CPs and FMs Please note the following characteristics in the MPI network Warning Loss of data packets in the MPI network If you connect another CPU to the MPI network during operation you may lose GD packets and increase the scan cycle time Remedy 1 Switch off the node to be connected 2 Connect the node to the MPI network 3 Sw...

Page 51: ...des in a network with the address on their housings In this way you can always see which node has been assigned which address in your system S Connect all nodes in the network as shown in Figure 3 5 that is integrate the stationary programming devices and OPs directly into the network Note For 3 Mbps and above you may only use bus connectors with the order numbers 6ES7 972 0B 10 0XA0 or 6ES7 972 0...

Page 52: ... RS 485 repeater used reduces the maximum number of nodes per bus segment This means if there is an RS 485 repeater in a bus segment there can then only be a maximum of 31 further nodes in the bus segment The number of RS 485 repeaters has no effect on the maximum number of nodes on the bus There can be up to 10 segments in one row S Switch the terminating resistance on at the geographical end poi...

Page 53: ...a the bus connectors and the PROFIBUS bus cable Remember to provide for the nodes a bus connector with programming device socket to which a programming device can be connected if required see also Section 3 5 Use the RS 485 repeater for connections between segments or for extending cables See the reference manual 71 for details of how to install and use a repeater A cable must be terminated with a...

Page 54: ...Resistance on the RS 485 Repeater Using a possible MPI network configuration Figure 3 4 shows where you must connect the terminating resistance RS 485 repeater Terminating resistance switched on S7 300 S7 300 C7 Spur line S7 300 OP 25 OP 25 PG PG Only connected via spur line at startup or during service work Figure 3 4 Switching Terminating Resistances in an MPI Network Terminating Resistance On R...

Page 55: ...PG 9 S7 300 CP PROFIBUS DP Network 10 S7 300 FM 11 Only connected via spur line at startup or during service work with default MPI address OP 25 OP 25 Connected to the MPI network afterwards with default MPI adress The CP has an L2 address as well as the MPI address here address 10 Terminating resistance switched on 3 4 Figure 3 5 Example of an MPI Network Example of an MPI Network Configuring MPI...

Page 56: ...e work with MPI address 0 0 x L2 addresses of the nodes C7 626 DP as DP master ET 200M 0 11 7 8 9 10 2 3 4 5 6 ET 200M S5 95U ET 200B ET 200B Terminating resistance switched on ET 200M ET 200M ET 200M ET 200B ET 200B PG 1 Default L2 address for DP master 1 3 4 0 x MPI addresses of the nodes Figure 3 6 Example of a PROFIBUS DP Network Example of a PROFIBUS DP Network Configuring MPI Networks and PR...

Page 57: ... 300 S7 300 S7 300 OP 25 ET 200M S5 95U ET 200B Terminating resistance switched on Only connected via spur line at startup or during service work with default MPI address L2 DP network MPI network S5 95U ET 200B ET 200B 3 4 5 6 7 8 9 10 1 2 3 4 5 6 8 7 10 9 0 x MPI addresses of the nodes L2 addresses of the nodes 0 C7 626 DP C7 626 DP 11 Figure 3 7 Example of a Setup with the C7 626 DP in the MPI ...

Page 58: ...s 1000 500 Kbps 400 1 5 Mbps 200 3 to 12 Mbps 100 with isolated interface If you implement longer cable lengths than those permissible in one segment you must use RS 485 repeaters The maximum possible lengths between two RS 485 repeaters correspond to the cable length of a segment However when using these maximum cable lengths note that there must be no other node remote segment between the two RS...

Page 59: ...rmitted per bus segment For 3 Mbps and above use the programming device connecting cable with order number 6ES7 901 4BD00 0XA0 to connect the programming device or PC You can use several programming device connecting cables with this order number in one bus setup Other spur lines are not permitted Table 3 4 Length of the Spur Lines per Segment Transmission Rate Max Length of Spur Line per S t Numb...

Page 60: ... repeater RS 485 repeater max 50 m max 50 m max 1000m Terminating resistance switched on C7 S7 300 S7 300 S7 300 S7 300 Spur line Programming device connected for maintenance purposes via spur line 0 12 0 x MPI addresses of the nodes 8 9 10 11 3 4 5 6 7 OP 25 PG PG OP 25 OP 25 Remote Segment Figure 3 9 Cable Lengths in an MPI Network Example Configuring MPI Networks and PROFIBUS DP Networks ...

Page 61: ...owing PROFIBUS bus cables Table 3 6 Bus Cables PROFIBUS bus cable PROFIBUS direct buried cable PROFIBUS drum cable PROFIBUS bus cable with PE sheath for food and drinks industry PROFIBUS bus cable for festooning The PROFIBUS bus cable is a two core twisted and shielded cable with the following characteristics Table 3 7 Characteristics of the PROFIBUS Bus Cable Features Values Surge impedance Appro...

Page 62: ...boundary conditions dA outer diameter of the cable Table 3 8 Boundary Conditions when Laying the Interior Bus Cable Features Edge Conditions Bending radius when bent once w 80 mm 10 dA Bending radius when bent several times w 160 mm 20 dA Permissible temperature range when laying 5 _C to 50 _C Storage and stationary operating temperature 30 _C to 65 _C Rules for Cable Laying Configuring MPI Networ...

Page 63: ...o 12 Mbps PROFIBUS bus connector 6GK1500 0EA00 S Up to 12 Mbps Without PG type connector 6ES7 972 0BA10 0XA0 With PG type connector 6ES7 972 0BB10 0XA0 S Up to 12 Mbps optionally with vertical or angular outgoing cable Without PG type connector 6ES7 972 0BA20 0XA0 With PG type connector 6ES7 972 0BB20 0XA0 The bus connectors are not required for the RS 485 repeater Purpose of the Bus Connector No ...

Page 64: ...S BUS The cable can be connected on the left or the right Switch position to ON for the first and last stations on the PROFIBUS ON terminating resistance switched on Cable shielding must lie bare on the metal guide Diagram III Terminating resistance switched off Cable shielding must lie bare on the metal guide Figure 3 11 PROFIBUS Bus Connector Appearance 6GK15000 0EA00 Configuring MPI Networks an...

Page 65: ...crew clamp for the bus cable connection PROFIBUS bus cable 6XV1 830 0AH10 Figure 3 12 Connecting the PROFIBUS Bus Cable to the Screw Type Terminal Block 3 5 2 Bus Connector 6ES7 972 0B 20 0XA0 Figure 3 13 shows the bus connector 6ES7 972 0B 20 Screws for fixing to station PG type connector only with 6ES7 972 0BB20 0XA0 9 pin sub D connector for connection to station Housing screw Switch for termin...

Page 66: ...oing cable angular without PG type connector Figure 3 14 Length of Stripped Insulation for Connecting to the Bus Connector 6ES7 972 0B 20 2 Open the housing of the bus connector by loosening the housing screw and swinging the cover upward 3 Remove the clamp type hinge cover 4 The bus connector 6ES7 972 0B 20 is supplied for an angular outgoing cable If a vertical outgoing cable arrangement is requ...

Page 67: ...or first and last stations on the bus1 Bus cable connection for all other stations on the bus 1 The bus cable can be connected on the right or on the left A B A B A B A B ÇÇ ÇÇ Figure 3 15 Connecting the Bus Cable to the Bus Connector 6ES7 972 0B 20 6 Screw tight the clamp type hinge cover Make sure that the cable shielding is bare under the shielding clip 7 Tighten the green and red wires in the ...

Page 68: ...OFIBUS bus cable Terminating resistance Interface for PG OP Screws for fixing to the node Proceed as follows to connect the PROFIBUS bus cable to the bus connector 6ES7 972 0B 10 0XA0 1 Cut the bus cable to the desired length 2 Insulate the bus cable according to Figure 3 16 ÇÇ ÇÇ 7 5 9 6 ÇÇ ÇÇ 7 5 9 6 6XV1 830 0AH10 3BH10 6XV1 830 3AH10 16 Figure 3 16 Length of Bared Wire for Connecting to the Bu...

Page 69: ... of the screw type terminal block This will hold it in place 7 Screw the green and red wires tightly into the screw type terminal block ÇÇ A B A B ÇÇ A B A B ÇÇ Bus cable connection for first and last nodes on the network Bus cable connection for all further nodes on the network The bus cable can be connected on the right or on the left Figure 3 17 Connecting the Bus Cable to the Bus Connector 6ES...

Page 70: ... on on off on off Figure 3 18 Bus Connectors 6ES7 Terminating Resistance Switched On and Not Switched On You can remove the bus connector with a looped through bus cable from the PROFIBUS DP interface at any time without interrupting data traffic on the bus Warning Possibility of interrupting data traffic on the bus A bus segment must always be terminated at both ends by the terminating resistance...

Page 71: ...iguration You can adjust the length of the check with STEP 7 in the parameter block Start Up Characteristics with the parameter Module Time Limits If the setpoint configuration actual configuration then the C7 DP CPU goes to RUN mode If the setpoint configuration actual configuration then the behavior of the C7 DP CPU depends on the parameter setting Startup at setpoint Actual configuration Startu...

Page 72: ...3 3 26 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks ...

Page 73: ...tems C79000 G7076 C626 01 Connecting a Programming Device PC to a C7 In Section You Will Find On Page 4 1 Connecting a Programming Device PC to a C7 4 2 4 2 Connecting a Programming Device PC to Several Nodes 4 3 Summary of Sections 4 ...

Page 74: ...MPI of the C7 using a prefabricated programming device cable Alternatively you can make up the connecting cable yourself using the PROFIBUS bus cable and bus connectors see Section 3 5 Figure 4 1 shows the components for connecting a programming device PC to a C7 Programming device cable Programming Device PC C7 Figure 4 1 Connecting a Programming Device PC to a C7 Possibilities Connecting a Progr...

Page 75: ...C in the MPI network S Programming device PC connected for startup and maintenance purposes Depending on this you connect the programming device PC with the other nodes as follows see also Section 3 2 Installation Variant Connection Fixed installation of the programming device PC in the MPI network The programming device PC is linked directly into the MPI network Programming device PC connected fo...

Page 76: ... to Several C7s If there is no stationary programming device PC available we recommend the following In order to connect a programming device PC for service purposes to an MPI network with unknown node addresses we recommend that you set the following address on the service programming device PC S MPI address 0 S Highest MPI address 126 Then find out the highest MPI address in the MPI network usin...

Page 77: ...connector of this node must possess a PG type connector for this purpose see also Section 3 5 Figure 4 3 shows two networked C7s to which a programming device PC is connected PROFIBUS bus cable PG cable single feeder C7 PG PC C7 Figure 4 3 Connecting a Programming Device PC to an MPI Network Programming Device PC for Startup or Maintenance Connecting a Programming Device PC to a C7 ...

Page 78: ...4 4 6 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Connecting a Programming Device PC to a C7 ...

Page 79: ...26 DP Control Systems C79000 G7076 C626 01 C7 Digital Input Output In Section You Will Find On Page 5 1 Digital Input Function 5 2 5 2 Digital Output Function 5 4 5 3 Status Bits of the DI DO 5 7 Summary of Sections 5 ...

Page 80: ... terminal connection and the block diagram of the digital input function Channel number Pin No 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Parts with this shading are not relevant to this example 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Digital inputs 1L 1M 24 V for DI Ground for DI 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 Block diagram 24 V 1L Minternal Bottom view of C7 1M Figure 5 1 Terminal Connection and Block Diagram of ...

Page 81: ... S Insulation resistance 500 VDC Status Interrupts Diagnostics Interrupts No Diagnostic functions No Data for Selecting a Sensor Input voltage S Nominal voltage S For 1 signal S For 0 signal 24 VDC from 11 to 30 V from 3 to 5 V Input current S For 1 signal from 6 to 11 5 mA Input delay time S Programmable S At 0 to 1 S At 1 to 0 No from 1 2 to 4 8 ms from 1 2 to 4 8 ms Input characteristic In acco...

Page 82: ...s and d c contactors The digital outputs may be briefly activated under the following conditions S Applying the DI DO power supply independently of the 24V GND wiring S Applying the 24V GND if the DI DO power supply is already wired A pulse can be approximately 50 µs within the permissible output voltage range You must observe this when using digital outputs in conjunction with high speed counters...

Page 83: ... 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 Block diagram 2L 2M 24 V Ground 24 V Ground DO 0 0 0 7 DO 1 0 1 7 Bottom view of C7 Figure 5 2 Terminal Connection and Block Diagram of the Digital Outputs If the maximum permissible current is utilized for the load power supply both pins should be wired to avoid overloading of the contacts For relatively low currents wiring of only on...

Page 84: ...r Selecting an Actuator Output voltage S At 1 signal L 0 8 V Output current S At 1 signal nominal value Permissible range S At 0 signal quiescent current 0 5 A 5 mA 0 5 mA max 0 5 mA Lamp load max 5 W Parallel switching of 2 outputs S For logic operations S For enhancing performance Possible outputs of the same group only Not possible Activating a digital input Yes Max switching frequency S With r...

Page 85: ...layed may differ from this it is the last thing to be set by the control program You do not require any server password level to select the DI DO status display You can select the function by pressing A Z simultaneously DI 00000000 0 7 0 0 00000000 1 7 1 0 DO 11001000 0 7 0 0 10101000 1 7 1 0 CPU MODE RUN RUN P RUN STOP MRES ESC Figure 5 3 DI DO Status Bits in a C7 Table 5 1 Explanation of the DI ...

Page 86: ...7076 C626 01 Note The values of the DI DO are read and displayed every 500 ms default value Changes which occur between these times are not displayed Exit the DI DO status display by pressing Exiting the DI DO Status Display C7 Digital Input Output ...

Page 87: ... 2 6 1 1 Connecting Voltage and Current Transducers 6 5 6 2 Connecting Loads Actuators to the Analog Output 6 6 6 3 Analog Input Function 6 9 6 3 1 Characteristics and Technical Specifications of the Analog Input Module 6 10 6 4 Analog Output Function 6 15 The C7 cannot be installed in an ungrounded configuration Summary of Sections Ungrounded Configuration 6 ...

Page 88: ...s not exceed the permissible value Where it is possible that the permissible value might be exceeded see technical specifications establish a connection between the MANA terminal and the M terminal of the C7 A potential difference VCM common mode voltage may occur between the measuring line AIx M of the input channels and the reference point of the measuring circuit MANA However this potential dif...

Page 89: ... Figure 6 1 Connecting Isolated Transducers to an Isolated Analog Input Module The non isolated transducers are connected on site with the ground potential Depending on local conditions or interference potential differences static or dynamic can occur between the locally distributed measuring points To prevent these potential differences you must provide equipotential bonding conductors between th...

Page 90: ...ol Systems C79000 G7076 C626 01 Non isolated transducers MANA C7 CPU VCM ADC Ground bus VISO Lo gic AIx X AIx M AIx X AIx M C7 M L Figure 6 2 Connection of Non Isolated Transducers to an Analog Input Module C7 Analog Input Output ...

Page 91: ... input MANA ADC U U C7 CPU Lo gic AIx U AIx M AIx U AIx M Figure 6 3 Connecting Voltage Transducers to an Isolated Analog Input 4 wire transducers possess a separate voltage supply Figure 6 4 shows the connection of current transducers as 4 wire transducers to a non isolated analog input module MANA ADC P P Transducers e g pressure gauges transducers 4 wire L M C7 CPU Lo gic AIx U AIx M AIx U AIx ...

Page 92: ...he M terminal of the C7 A potential difference VISO can occur between the reference point of the analog circuit MANA and the M terminal of the C7 Make sure that VISO does not exceed the permissible value Where it is possible that the permissible value might be exceeded see technical specifications establish a connection between the AO M terminal and the M terminal of the C7 The abbreviations and m...

Page 93: ...ng loads to a current output of an isolated analog output module C7 CPU DAC RL AO I Ground bus VISO Lo gic C7 M L AO M Figure 6 5 Connecting Loads to a Current Output of an Isolated Analog Output Module Connection of loads to a voltage output is only possible in 2 wire circuits as there is only one output Connecting Loads to a Current Output Connecting Loads to a Voltage Output C7 Analog Input Out...

Page 94: ...nce point of the measuring circuit MANA Figure 6 6 shows the principle of connecting loads to a voltage output of a non isolated analog output module with 2 wire connection C7 CPU DAC Ground bus Lo gic RL AO U C7 M L VISO AO M Figure 6 6 2 Wire Connection of Loads to a Voltage Output of an Analog Output Module 2 Wire Connection C7 Analog Input Output ...

Page 95: ... the characteristics of the analog input module The following measurement types are available on the analog input module S Voltage measurement S Current measurement The measuring ranges are S Voltage 10 V S Current 20 mA 4 to 20 mA For the current range 4 to 20 mA a current of 1 6 mA is interpreted per software as a wire break see Volume 2 Section 5 2 Measuring ranges for current measurement with ...

Page 96: ... following characteristics S 4 inputs S Measured value resolution 12 bits including sign S Measurement type selectable Voltage Current S Choice of measuring range per input S Diagnostics which can be assigned parameters S An interrupt which can be assigned parameters S An interrupt cycle which can be assigned parameters S Isolated Characteristics C7 Analog Input Output ...

Page 97: ...AI3 U AI3 I AI3 M AI4 U AI4 I 2 1 3 V 5 4 6 V 8 7 9 V 11 10 12 V Current measurement 2 1 3 5 4 6 8 7 9 11 10 12 AI4 M MANA Parts with this shading are not relevant to this example View of right hand side of C7 Figure 6 7 Terminal Connection Diagram of the Analog Inputs Caution The jumper between pins 1 2 4 5 7 8 10 11 must also be wired in the case of current measurement Terminal Connection Diagra...

Page 98: ...ial AI4 U Voltage input Channel 4 AI4 I Current input AI4 AI4 M Reference potential Only one analog sensor can be connected to an analog input channel Voltage Measurement Current Voltage Reference potential One channel voltage measurement Figure 6 8 Connection of a Channel for Voltage Measurement Current Measurement When connecting a current measurement channel the voltage pin and the current pin ...

Page 99: ...tentials Nominal load voltage L S Polarity reversal protection 24 VDC Yes Voltage supply to the transducers S Short circuit protection Yes Galvanic isolation analog I O to electronics Yes Permissible potential difference S Between reference potential of inputs and MANA VCM if signal 0 V S Insulation resistance 2 5 VDC 500 VDC Analog Value Generation Measurement principle Momentary value S Basic co...

Page 100: ...mA 250 Ω 250 Ω Permissible input voltage for voltage input destruction limit 18 V Permissible input current for current input destruction limit 30 mA Connection of signal sensors S for voltage measurement S for current measurement as 4 wire transducer Possible Possible Temperature compensation Balanced by continuous on line calibration Status Interrupts Diagnostics Interrupts S Interrupt cycle S D...

Page 101: ...ters you can use to influence the characteristics of the analog output function S The technical specifications of the analog output function The output function has the following characteristics S 1 output S The output can be selected either as Voltage output or Current output S Resolution 12 bits including sign S Diagnostics which can be assigned parameters S Isolated Note If you modify the outpu...

Page 102: ... 5 6 7 8 9 10 11 AO U AO I AO M 15 14 16 V A Parts with this shading are not relevant to this example View of right hand side of C7 Figure 6 11 Terminal Connection Diagram of the Analog Output Function Figure 6 12 shows the block diagram of the analog output module You will find detailed technical specifications of the analog output module on the following pages Terminal Connection Diagram Block D...

Page 103: ...ing overrange S 10 V 20 mA 4 to 20 mA 12 bits incl sign Conversion time max 0 8 ms Settling time S For resistive load S For capacitive load S For inductive load 0 1 ms 3 3 ms 0 5 ms Substitute value injectable Yes can be assigned parameters Interference Suppression Error Limits Measuring tolerance 1 of end value Basic error limit operational limit at 25 _C referred to output range S Voltage S Curr...

Page 104: ...t outputs S Capacitive Load S Inductive Load min 2 k max 500 max 1 F max 1 mH Voltage output S Short circuit protection S Short circuit current Yes countervoltage proof max 25 mA Current output S Idle voltage min 15 V Connection of actuators S For voltage output 2 wire connection S For current output 2 wire connection Possible Possible Supply of sensors External not via C7 C7 Analog Input Output ...

Page 105: ...7 1 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Universal Inputs This chapter describes the technical specifications and characteristics of the universal inputs for the C7 Universal Inputs 7 ...

Page 106: ... S Digital input These input functions can be set by assigning them parameters Figure 7 1 shows the pin assignments of the universal inputs 1 2 3 4 5 6 7 8 9 10 11 12 Universal inputs Not assigned DI X1 Ground DI X2 DI X3 DI X4 Parts with this shading are not relevant to this example View of right hand side of C7 Figure 7 1 Pin Assignments of the Universal Inputs Overview Terminal Connection Diagr...

Page 107: ...If this function is set the input responds like a normal interrupt input that is a hardware interrupt is triggered in the C7 CPU as a response to the edge with assigned parameters If this function is set the input responds like a normal digital input see Section 5 2 The only difference here is that the current process signal is not automatically fed to the control program but must first be read in...

Page 108: ...ncy Can be assigned parameters Can be assigned parameters 10 kHz Module standard diagnostics in conjunction with analog I O No channel specific diagnostics Max 3 Edge counting up 0 to 65535 down 65535 to 0 1 value per counter When limit value is reached When 0 is reached In the program Max 1 Counting between fixed time units from two positive edges 0 to 16777215 8 395 s or 0 119 Hz Max 1 Counting ...

Page 109: ... 1 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Maintenance In Section You Will Find On Page 8 1 Changing and Disposing of the Back Up Battery 8 2 8 2 Replacing the C7 8 6 Summary of Sections 8 ...

Page 110: ...ery connections allow 3 Remove the battery connector of the old back up battery 4 Loosen the cable binders with which the back up battery is attached to the cover see Figure 8 3 5 Attach the new back up battery with the cable binders to the cover 6 Plug the battery connector of the new back up battery into the relevant socket in the battery compartment of the C7 The notch on the battery connector ...

Page 111: ...8 8 3 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Battery cover Cable binder Figure 8 1 Battery Cover Before Opening Figure 8 2 Battery Cover Maintenance ...

Page 112: ...lines concerning the disposal of back up batteries Store back up batteries in a cool dry place Back up batteries can be stored for up to five years Warning Back up batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged Store back up batteries in a cool dry place How Often Should You Change the Battery Disposal Storage of Back Up Batteries Maintenance ...

Page 113: ... must observe the following rules Warning The use of back up batteries may result in injury and damage Wrongly handled back up batteries can explode or cause serious burns Do not S recharge S heat S burn S drill S crush S short circuit back up batteries Rules for Handling and Using Back Up Batteries Maintenance ...

Page 114: ... PC to the MPI S Use STEP 7 to transfer the user program stored in the C7 CPU to a programming device PC If the C7 CPU is defective and the user program can no longer be displayed remove the C7 without any further safety measures S The configuration loaded onto the C7 cannot be displayed It must be available on a programming device PC As soon as you have a new C7 install it as follows 1 The mechan...

Page 115: ...cations contain the standards and test values that the C7 conforms to or the criteria against which the C7 has been tested In Section You Will Find On Page A 1 Technical Specifications A 2 A 2 Notes on the CE Marking A 5 A 3 Notes for the Machine Manufacturer A 6 A 4 Transport and Storage Conditions for Back Up Batteries A 7 What Are General Technical Specifications Summary of Sections A ...

Page 116: ...t interface Standard MPI Back up battery Back up time approx 1 year C7 OP Flash memory configuration memory C7 626 128 Kbytes Work memory 128 Kbytes Power supply Supply voltage VCM S Polarized input voltage connection S Voltage interruption can be jumpered 24V DC 20 4 to 30 2V DC safety extra low voltage The C7 626 and C7 626 DP have no internal protection against high energy surge pulses in the µ...

Page 117: ... ground With unshielded signal lines with protective element lightning conductor KT type AD 24 V from the Dehn company Noise immunity against discharge 6kV discharge on contact in accordance with IEC 801 2 IEC 1000 4 2 ESD 8kV atmospheric discharge in accordance with IEC 801 2 IEC 1000 4 2 ESD Immunity to high frequency radiation 10V m with 80 amplitude modulation with 1 kHz 10kHz 80MHz in accorda...

Page 118: ...age relay power supply etc must be provided in the form of safety extra low voltage SELV Warning Personal injury and damage to property can occur If you do not provide the correct 24 VDC power supply for your C7 626 or C7 626 DP this may result in damage to components of your programmable controller and personal injury Use only safety extra low voltage SELV for the 24 VDC power supply to your C7 6...

Page 119: ...rungstechnik AUT E 14 Postfach 1963 D 92209 Amberg Federal Republic of Germany The C7 626 and C7 626 DP control systems have been designed for use in the following areas in accordance with their CE marking Area of Application Requirements Emitted Interference Immunity Industrial and office area EN 50081 2 1993 EN 50082 2 1995 Household business and trade area small plants EN 50081 1 1992 EN 50082 ...

Page 120: ...Machines Part 1 Specification for General Requirements applies for electrical equipment of machinery The table below is designed to help you with the declaration of conformity and to show which criteria apply to SIMATIC according to EN 60204 1 as of June 1993 EN 60204 1 Subject Criterion Remarks Paragraph 4 General requirements Requirements are met if the devices are mounted installed in accordanc...

Page 121: ...ttery is in Hazardous Goods Class 9 Store back up batteries in a cool dry place Back up batteries can be stored for up to 5 years Warning Back up batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged Store back up batteries in a cool dry place To prevent hazards when using back up batteries you must observe the following rules Do not S recharge S heat S...

Page 122: ...A A 8 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications ...

Page 123: ...es ESD In Section You Will Find On Page B 1 What is ESD B 2 B 2 Electrostatic Charging of Objects and Persons B 3 B 3 General Protective Measures Against Electrostatic Discharge Damage B 4 B 4 Taking Measurements and Working on ESD Modules B 6 B 5 Packing Electrostatically Sensitive Devices B 6 Summary of Sections B ...

Page 124: ... ESD Electrostatically sensitive devices are labelled with the following symbol Caution Electrostatically sensitive devices are subject to voltages that are far below the voltage values that can still be perceived by human beings These voltages are present if you touch a component or module without previously being electrostatically discharged In most cases the damage caused by an overvoltage is n...

Page 125: ... up to 8 000 V S Desoldering device with plastic parts up to 8 000 V S Walking on plastic flooring up to 12 000 V S Sitting on a padded chair up to 15 000 V S Walking on a carpet synthetic up to 15 000 V An electrostatic discharge is S perceptible from 3500 V S audible from 4500 V S visible from 5000 V A fraction of these voltages is capable of destroying or damaging electronic devices Carefully n...

Page 126: ...you wear a wristband complying with ESD specifications or if you use special ESD footwear or ground straps when walking on an ESD floor S Persons working on electronic devices should first discharge their bodies by touching grounded metallic parts for example bare metal parts of switchgear cabinets water pipes etc S Protect the modules against contact with chargeable and highly insulating material...

Page 127: ...r handling electrostatically sensitive devices a Conductive flooring material b Table with conductive grounded surface c ESD footwear d ESD smock e Grounded ESD wristband f Ground connection of switchgear cabinet g Grounded chair a b c d e f g ESD Precautions Guidelines for Handling Electrostatically Sensitive Devices ...

Page 128: ...lectrostatically Sensitive Devices Generally use conductive materials for packing modules without casing and components You may also use metal clad plastic boxes or metal containers Always store ESD modules in conductive packing material When packing modules incorporating batteries cover the battery connections with insulating tape or insulating material to avoid short circuiting of the battery Re...

Page 129: ...fe from power failures and that data areas bit memory timers and counters remain retentive The back up memory backs up memory areas of the C7 620 without the need for a back up battery The memory backs up a programmable number of timers counters bit memory and data bytes the retentive timers counters bit memory and data bytes A bus is a transfer medium that connects two or more nodes with each oth...

Page 130: ...with their own processor They form an important group within the components of a programmable controller A distinction can be made between various types of communications processors according to their tasks For example CPs for messages and logging for point to point connection for operator interfacing COROS for bus connections SINEC for diagnostics and mass storage applications When a CPU starts u...

Page 131: ...esources to the same or approximately the same potential as foreign conducting bodies in order to prevent interference or hazardous voltages arising between the bodies The error display is one of the possible responses of the operating system to a run time error The other possible responses are error response in the user program STOP mode of the C7 CPU F With regard to their characteristic to reta...

Page 132: ... as zero In the area of grounding electrodes the ground can have a potential other than zero This is frequently referred to as the reference ground To connect an electrically conductive part with the grounding electrode one or more conductive parts that have very good contact to ground by means of a grounding point H A hardware interrupt is triggered by interrupt triggering modules as the result o...

Page 133: ...to common potential L The load memory is a component part of the C7 CPU It contains objects load objects created by the programming device It is implemented as a fixed integrated memory M When clearing the C7 CPU the following memories are deleted S The work memory S The read write memory area of the load memory S The system memory S The back up memory and the user program is reloaded from the fla...

Page 134: ...CPU organizes all functions and processes of the C7 which are not linked to a special control task P 1 A parameter is a variable of a STEP 7 logic block 2 A variable for setting the behavior of a module one or more per module Every configurable module has a basic parameter setting when it is supplied from the factory but this can be changed using STEP 7 There are two types of parameter static and ...

Page 135: ...tructure of a computer it consists of a CPU with memory I O modules and an internal bus system The I O and the programming language are set up according to the requirements of control engineering Programming devices are essentially personal computers that are compact and portable and suitable for industrial use They are characterized by being equipped with special hardware and software for SIMATIC...

Page 136: ...rors which occur within the programmable controller Examples of such errors include program errors or module failures System errors can be indicated via LEDs or via STEP 7 The system memory is integrated in the CPU and executed in the form of RAM The address areas for example timers counters bit memory and data areas required internally by the operating system for example backup for communication ...

Page 137: ...however the user program is executed from the work memory of the C7 CPU The user program contains all the statements and declarations and the data required for signal processing to control a plant or a process The program is linked to a programmable module for example C7 CPU FM and can be structured in the form of smaller units blocks V Voltage dependent resistor W The work memory is a RAM in the ...

Page 138: ...Glossary 10 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary ...

Page 139: ... B Back up battery Changing 8 2 Disposing of 8 4 Storing 8 4 Transport and storage conditions A 7 BAF 2 28 Battery fault 2 28 Bus cable 1 4 Length of spur lines 3 13 Bus connector 3 15 Installing PROFIBUS bus cable 3 22 Mounting bus cable 3 20 Purpose 3 17 Removing 3 24 Setting terminating resistance 3 24 Terminating resistance 3 7 To module 3 24 Bus connectors 2 15 Bus segment 3 6 C C7 Installati...

Page 140: ... Hardware setup interference proof 2 16 Highest MPI address 3 3 I IM360 2 20 IM360 interface module 2 20 IM361 cable 2 2 2 15 Installation interference proof 2 16 Installing a C7 2 6 Interface module 1 3 2 20 Interference signals 2 16 Interference proof installation 2 16 Interrupt input universal inputs 7 2 7 3 K Keying connectors 2 19 M Master clock 2 22 Measuring ranges 4 wire transducer 6 9 Ana...

Page 141: ...er 1 5 3 3 3 15 Terminating resistance 3 8 Using 3 7 RUN 2 28 Run time meter 2 23 S S7 300 CPU 1 4 S7 400 CPU 1 4 Segment MPI network 3 12 PROFIBUS DP network 3 12 Self test 2 25 3 1 Service programming device 3 7 Setpoint configuration 3 25 Setup guidelines 2 16 SF 2 28 Shield 2 16 Shielding clips 2 18 Signal modules 1 3 SINEC L2 DP 3 1 Spur lines 3 5 3 13 Length 3 13 Starting up CPU as DP master...

Page 142: ...Index 4 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Index ...

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