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Functional characteristics 

 

3.3 Characteristics of S7 communication 

 

CP 1542-5 

14

 

Manual, 11/2014, C79000-G8976-C326-03 

Diagnostics requests 

As a DP master (class 1), the CP 1542-5 supports diagnostics requests of a DP master 

(class 2). 

DP startup behavior 

 

 

Note 
Increasing the default value for startup parameters - configuration of the CPU 
In some situations, it is necessary to increase the default value for the startup parameter 

"Parameter assignment time for the distributed I/O" in the configuration of the CPU: 

•

 

When there is a large number of modules (DP slaves) configured that can be assigned 

parameters. 

•

 

When a high value is configured for the constant bus cycle time in the network properties 

of the PROFIBUS DP line. 

 

3.3

 

Characteristics of S7 communication 

General characteristic data  

The following information is important when operating S7 connections: 

Table 3- 2 

General characteristics of S7 connections  

Characteristic 

Explanation / values 

Number of S7 connections that can 

be operated via PROFIBUS 

Operable in total: Max. 16 
The value depends on the S71500 CPU being used. 

Содержание PROFIBUS CP 1542-5

Страница 1: ...__________ ___________________ SIMATIC NET S7 1500 PROFIBUS CP 1542 5 Manual 11 2014 C79000 G8976 C326 03 Preface Guide to the documentation 1 Product overview 2 Functional characteristics 3 Requirements for use 4 Connecting up commissioning 5 Interrupts diagnostics messages error and system alarms 6 Technical specifications 7 Approvals 8 ...

Страница 2: ...e operated only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING...

Страница 3: ...ortant information on the product described in the documentation handling the product or about parts of the documentation you should pay particular attention to Names In this document the term CP is also used instead of the full product name The name STEP 7 is used to mean the STEP 7 Professional configuration tool SIMATIC NET glossary Explanations of many of the specialist terms used in this docu...

Страница 4: ... solutions undergo continuous development Siemens recommends strongly that you regularly check for product updates For the secure operation of Siemens products and solutions it is necessary to take suitable preventive action e g cell protection concept and integrate each component into a holistic state of the art industrial security concept Third party products that may be in use should also be co...

Страница 5: ...ct engineering 15 4 3 Programming 15 5 Connecting up commissioning 17 5 1 Important notes on using the device 17 5 2 Installing and commissioning the CP 1542 5 19 5 3 Replacing a module without a programming device 21 5 4 Mode of the CPU effect on the CP 22 6 Interrupts diagnostics messages error and system alarms 23 6 1 Status and error display of the CP 23 6 2 Diagnostics options 25 6 3 DP slave...

Страница 6: ...Table of contents CP 1542 5 6 Manual 11 2014 C79000 G8976 C326 03 ...

Страница 7: ...rip tion System manual S7 1500 Automation System http support automation siemens com WW vi ew en 59191792 Application planning Installation Connecting Commissioning Module properties Device manual Power supplies http support automation siemens com WW vi ew en 57251228 Connecting Parameter assignment addressing Interrupts error messages diagnostics and system alarms Technical specifications Dimensi...

Страница 8: ...anual Cycle and Response Times http support automation siemens com WW vi ew en 59193566 Basics Calculations Analog value processing Function manual Analog value processing http support automation siemens com WW vi ew en 59193559 Wiring options Tables of measured values SIMATIC manuals All current manuals for SIMATIC products are available for download free of charge from the Internet http www siem...

Страница 9: ...ion on the following product CP 1542 5 Article number6GK7 542 5FX00 0XE0 Hardware product version 1 Firmware version V1 0 Communications processor for connecting SIMATIC S7 1500 to PROFIBUS DP View of the CP LEDs Type plate PROFIBUS interface 1 x 9 pin D sub female connector RS 485 Figure 2 1 View of the CP 1542 5 with closed left and open right front cover ...

Страница 10: ...standard DP master mode for Siemens DP slaves Direct data exchange DP slave to DP slave As a DP master the CP 1542 5 is capable of enabling direct data exchange for its DP slaves SYNC FREEZE The outputs or inputs can be synchronized by the user program using system function DPSYNC_FR PROFIBUS DP slave PROFIBUS DP according to EN 50170 DPV1 DP slave Note DP master or DP slave Please note however Th...

Страница 11: ... synchronization As an alternative the CP can be configured as time master or time slave on PROFIBUS Time master The CP is synchronized using the time of day in the S7 1500 station and outputs the time of day on PROFIBUS The output interval can be set Time slave The CP receives time of day frames on PROFIBUS and outputs the time within the S7 1500 station The output interval within the S7 1500 sta...

Страница 12: ...Product overview 2 2 Further functions CP 1542 5 12 Manual 11 2014 C79000 G8976 C326 03 ...

Страница 13: ...ending on the transmission speed Refer to the information in the section Technical specifications Page 33 3 2 Characteristic data of the DP interface General characteristic data No special program blocks are required for DP mode The interfacing to the distributed I O is by direct I O access or using program blocks SFCs SFBs of the CPU Table 3 1 General characteristic data of DP mode Characteristic...

Страница 14: ...assignment time for the distributed I O in the configuration of the CPU When there is a large number of modules DP slaves configured that can be assigned parameters When a high value is configured for the constant bus cycle time in the network properties of the PROFIBUS DP line 3 3 Characteristics of S7 communication General characteristic data The following information is important when operating...

Страница 15: ... to the CPU via PROFIBUS or any PROFINET interface of the S7 1500 station The following version of STEP 7 is required STEP 7 version and additional modules Functions of the CP STEP 7 Professional V12 SP1 The full functionality of the CP 1542 5 6GK7 542 5FX00 0XE0 can be configured 4 3 Programming Program blocks For communications services there are preprogrammed program blocks instructions availab...

Страница 16: ...atus vendor specific interrupt Refer to the documentation of the program blocks in the online help of STEP 7 Calling program blocks instructions for distributed I O Several calls are necessary for the instructions of the distributed I O The time required to process the job depends on load round trip time and transmission speed If these instructions are called in a loop within one cycle the cycle t...

Страница 17: ...ply to 100 V 240 V devices This means that only SELV LPS complying with IEC 60950 1 EN 60950 1 VDE 0805 1 must be connected to the power supply terminals The power supply unit for the equipment power supply must comply with NEC Class 2 as described by the National Electrical Code r ANSI NFPA 70 There is an additional requirement if devices are operated with a redundant power supply If the equipmen...

Страница 18: ...locations only WARNING Restricted area of application This equipment is suitable for use in Class I Zone 2 Group IIC or non hazardous locations only WARNING LAN attachment A LAN or LAN segment with the attachments belonging to it should be within a single low voltage supply system and within a single building Make sure that the LAN is in an of type A environment according to IEEE 802 3 or in a typ...

Страница 19: ... voltage surges Provisions shall be made to prevent the rated voltage from being exceeded by transient voltage surges of more than 40 This criterion is fulfilled if supplies are derived from SELV Safety Extra Low Voltage only 5 2 Installing and commissioning the CP 1542 5 WARNING Read the system manual S7 1500 Automation System Prior to installation connecting up and commissioning read the relevan...

Страница 20: ... socket Underside of the CP 4 Turn on the power supply 5 Close the front covers of the module and keep them closed during opera tion 6 The remaining steps in commission ing involve downloading the STEP 7 project data The STEP 7 project data of the CP is transferred when you download to the station To load the station connect the engineering station on which the project data is located to the Ether...

Страница 21: ...RxD TxD P Data line B 4 RTS Request To Send 5 M5V2 Data reference potential from station 6 P5V2 Supply plus from station 7 8 RxD TxD N Data line A 9 Note PROFIBUS interface The CP provides no 24 VDC power supply on the PROFIBUS interface I O devices for example PC adapter 6ES7972 0CB20 0XA0 are therefore not operational on the interface 5 3 Replacing a module without a programming device General p...

Страница 22: ...U from STOP to RUN The CP loads configured and or downloaded data into the work memory and then changes to RUN mode Changing the CPU from RUN to STOP The reaction is as follows in STOP DP master mode Change to the CLEAR mode DP slave mode Input data is sent to the DP master with the value 0 and a DP diagnostics alarm is sent The following functions remain enabled The configuration and diagnostics ...

Страница 23: ...ion on Interrupts in the STEP 7 online help You can find additional information on Diagnostics and System alarms in the System diagnostics http support automation siemens com WW view en 59192926 function manual 6 1 Status and error display of the CP LED display The following figure shows the LEDs of the CP 1542 5 RUN STOP LED ERROR LED MAINT LED Figure 6 1 LED display of the CP 1542 5 without fron...

Страница 24: ...g the CP LED lit green LED off LED off CP is in RUN mode No disruptions LED flashing green LED off LED off No CP configuration exists Loading firmware LED lit green LED flashing red LED off A diagnostics event has occurred LED lit green LED off LED lit yellow Maintenance maintenance is demand ed LED lit green LED off LED flashing yellow Maintenance is required Downloading the user program LED flas...

Страница 25: ... Diagnostics status Information on the PROFIBUS interface You can obtain further information on the diagnostics functions of STEP 7 in the STEP 7 online help DP diagnostics The DP diagnostics of the CP is described below The evaluation of diagnostics data records requested by the DP master and the diagnostics interrupts or diagnostics alarms of the DP slaves is handled in the user program of the D...

Страница 26: ...line help Below there is an overview of the structure of the diagnostics data Overview of standard diagnostics Standard diagnostics Byte Meaning 0 Station status 1 1 Station status 2 2 Station status 3 3 Master address 4 5 Vendor ID of the slave Overview of device specific diagnostics The device specific diagnostics data depends on the protocol variant operating on the DP slave DP V1 slave Table 6...

Страница 27: ...d This bit is set by the DP master when the master has requested a function that is not supported by the DP slave Solution Change the parameter setting to disable the function on the master 3 Ext_Diag This bit is set by the slave Bit 1 There is diagnostics data in the slave specific diagnostics area The diagnostics data can be evaluated in the user program of the master Bit 0 There may be status i...

Страница 28: ...slave until the DP slave resets the bit The DP slave sets this bit for example when it is not capable of data transfer 0 Parameter_Request The DP slave sets this bit when it needs to have new parameters assigned and be reconfigured If bit 0 and bit 1 are both set bit 0 has the higher priority Byte 2 Station status 3 Table 6 5 Structure of station status byte 3 Bit no Name Explanation 7 Ext_Data_Ov...

Страница 29: ...nificant bits have the value 00 This identifies the module specific diagnostics data field see bytes 4 62 as a whole The remaining six bits indicate the length of the data field including byte 0 Byte 1 Variant Interrupt type Table 6 6 Structure of byte 1 of the device specific diagnostics variant interrupt type Bit no Meaning 7 Value Meaning 0 Interrupt 6 0 Alarm_Type 0 reserved 1 Diagnostics inte...

Страница 30: ...ceholder for the entire device Byte 3 Variant Interrupt specifier Table 6 8 Structure of byte 3 of the device specific diagnostics variant interrupt specifier Bit no Meaning 7 3 Seq_No Unique identifier of an interrupt alarm 2 Add_Ack If this bit is set the DP V1 master is indicating that this interrupt expects an acknowledgement in the form of a WRITE job 1 0 Alarm_Specifier 0 No further distinct...

Страница 31: ...ecific diagnostics with status type and module status With the variant status type of the device specific diagnostics of DP V1 slaves see byte 1 bit 7 and the setting Modul_Status see byte 1 bits 0 6 there are two status bits here for each slot module Bits not required are set to 0 Table 6 10 Structure of the bytes for module specific diagnostics data Byte Bit assignment Bit 7 6 5 4 3 2 1 0 4 Modu...

Страница 32: ...6 6 DP diagnostics frames when the CPU is in STOP DP diagnostics frames when the CPU is in STOP All diagnostics frames from DPV0 standard slaves and all DP interrupt frames from DP S7 DPV1 standard slaves arriving when the CPU is in STOP are forwarded to the CPU During module startup the diagnostics frames must then be evaluated by a suitable user program ...

Страница 33: ... connector RS 485 Transmission speed 9 6 Kbps 19 2 Kbps 45 45 Kbps 93 75 Kbps 187 5 Kbps 500 Kbps 1 5 Mbps 3 Mbps 6 Mbps 12 Mbps Electrical data Power supply via S7 1500 backplane bus 15 V Current consumption From backplane bus 100 mA Power dissipation 1 5 W Insulation Insulation tested with 707 VDC type test Design dimensions and weight Module format Compact module S7 1500 single width Degree of ...

Страница 34: ...Technical specifications CP 1542 5 34 Manual 11 2014 C79000 G8976 C326 03 ...

Страница 35: ...he device certificates for shipbuilding and special national approvals can be found on the pages of Siemens Automation Customer Support on the Internet http support automation siemens com WW news en 10805878 Under this entry go to the required product and select the following settings Entry list tab entry type Certificates Standards and test specifications The device meets the following standards ...

Страница 36: ... Industrielle Kommunikation SIMATIC NET Postfach 4848 D 90327 Nürnberg You will find the EC Declaration of Conformity at the following address under the following entry ID on the Internet http support automation siemens com WW view en 16689636 EMC directive The SIMATIC NET S7 CPs listed above are designed for use in an industrial environment Field of application Requirements Emission Immunity to i...

Страница 37: ...us assigned to your product from the mark on the rating plate UL approval UL Recognition Mark Underwriters Laboratories UL nach Standard UL 508 Report E 85972 CSA approval CSA Certification Mark Canadian Standard Association CSA nach Standard C 22 2 No 142 Certification Record 063533 C 000 cULus Approval Hazardous Location CULUS Listed 7RA9 IND CONT EQ FOR HAZ LOC Underwriters Laboratories Inc com...

Страница 38: ...al Code stipulations When used in environments according to class I division 2 see above the SIMATIC NET S7 CPs must be mounted in an enclosure FM approval Factory Mutual Approval Standard Class Number 3611 Class I Division 2 Group A B C D T3 T6 or Class I Zone 2 Group IIC T3 T6 You will find the temperature class on the type plate on the module WARNING Personal injury and damage to property may o...

Страница 39: ...e 10 Downloading project data 20 Downloads 8 DP diagnostics 25 DP diagnostics frames when the CPU is in STOP 32 DP master Operation as 10 DP master class 1 10 11 DP master mode 22 DP masters class 2 11 DP mode General characteristic data 13 DP slave 10 11 Operation as 10 DP slave mode 22 DP slaves General characteristic data 13 E EMC electromagnetic compatibility 36 Error status codes 23 F FM Appr...

Страница 40: ...16 Protection against transient voltage surges 19 R Replacing components 18 RS 485 interface 21 RS 485 socket 20 S S7 communication 10 S7 connections 14 General characteristic data 14 S7 routing function 22 Safety extra low voltage 17 Safety notices 17 Siemens DP slave 10 SIMATIC NET glossary 3 SIMATIC NET Manual Collection 8 Startup parameters 14 Status and error displays 23 STEP 7 3 15 SYNC FREE...

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