background image

System Overview ProSafe-COM 3.00 

 

37 of 49 

 

5.4  ProSafe-PLC forcing statuses 

ProSafe-PLC has software facilities to enable forcing statuses.

 

The Fail-safe enable is typically connected to an input channel of a CDM. This input will typically be linked 
to logic in the CCM (basically a logical AND gate) to which also the override output from the ProSafe-COM 
is connected (originating from external communication lines)

 

The CCM is connected to the M-BUS and receives write commands from the ProSafe-COM. The following 
picture gives an impression: 
 
 

ProSafe-COM 

 

Figure 26: Override facility in ProSafe-PLC 

 
 

5.5  Status acquisition on Y-net 

In a Y-net configuration the status of the ProSafe-SLS can be scanned at regular time intervals. 

 

 

Five different kinds of status data can be collected:

 

 

  Digital input data 

The digital input module (MC-573) performs Digital data acquisition.

 

  Digital output data 

The digital output module (MC-576) executes write commands.

 

  Analogue input data 

The analogue input module (MC-562) will perform the Analogue status acquisition.

 

  Matrix panel input 

The matrix panel input controller (MI-983) reads operator’s input.

 

 Matrix panel output 

The matrix panel output controller (MO-986) sets lamp outputs.

 

 

This paragraph describes some more details of this mechanism for the ProSafe-SLS safety system.

 

 

Each Y-net can support maximally 120 ProSafe-SLS or matrix panel control modules. ProSafe-COM 
scans all Y-net modules through the Y-net. 

All Rights Reserved. 

©

 Copyright Yokogawa Europe Solutions B.V. 

TI48J01A00-00E Oct 2010 

 

Содержание ProSafe-COM

Страница 1: ...tem Overview ProSafe COM 3 00 ProSafe COM TI48J01A00 00E N Yokogawa Europe Solutions B V PO Box 163 3800 AD Amersfoort The Netherlands Tel 31 88 464 1000 Fax 31 88 464 1111 TI48J01A00 00E N Copyright...

Страница 2: ...erfaces 30 4 1 Access to status map and event list 30 4 2 Printer 31 4 3 User interface 31 4 4 V net interface 31 4 5 M BUS M NET interface 32 4 6 Ethernet interface 32 4 7 Serial interfaces 33 4 8 Y...

Страница 3: ...ording 20 Figure 13 Forcing status 21 Figure 14 Tag definition 22 Figure 15 Communication with tags 23 Figure 16 Tag file and event filtering 24 Figure 17 ProSafe COM IPC 25 Figure 18 ProSafe PLC M BU...

Страница 4: ...PLC and ProSafe SLS Since the functionality of MODCOM and MULCOM functionality partly overlap ProSafe COM is now introduced a single platform which can be used to replace both MODCOM and MULCOM The ne...

Страница 5: ...ains in more detail how the ProSafe COM functions are implemented in the hardware Chapter 7 Redundant configurations Function and characteristics of a redundant configuration Chapter 8 Time synchronis...

Страница 6: ...nd points out the strategy for project engineering The use of the engineering tools is explained in detail The ProSafe COM Installation Test Maintenance manual provides information for hardware and so...

Страница 7: ...s exploration petrochemical or nuclear industries to mention some examples A ProSafe system works autonomously It shuts down the guarded process or part of it without any operator s intervention when...

Страница 8: ...al operations The engineering and maintenance tool for ProSafe COM is the ProSafe COM System Engineering Tool SET During commissioning test and maintenance ProSafe COM SET is a powerful tool ProSafe C...

Страница 9: ...gration with ProSafe PLC via M BUS M NET Full integration with ProSafe PLC via M BUS M NET Connection to ProSafe SLS via a single Y net connection Supports two separate Y net connections to ProSafe SL...

Страница 10: ...e necessary in case of starting up processes or maintenance DCS and SCADA systems Through the use of the OPC protocol ProSafe COM can be connected to OPC enabled supervisory systems OPC runs over TCP...

Страница 11: ...am execution The ProSafe COM configuration files need not be changed in this situation and are identical to the ones used for the final project The intention of this I O emulation is to enable the DCS...

Страница 12: ...ns autonomously no further user interface is required although connection of a VDU and keyboard is catered for Note that engineering commissioning and maintenance can be done with ProSafe COM SET Othe...

Страница 13: ...roSafe safety system present itself as one unit This unit is called a ProSafe Safety Control Station SCS The CENTUM is also connected to a Field Control Station FCS The Field Control Station consists...

Страница 14: ...essages can be retrieved by ProSafe COM from the ProSafe safety system In case of an override procedure statuses can also be written into the ProSafe safety system SER Sequence of Events Recording Pro...

Страница 15: ...RS 232 serial interfaces a parallel printer interface SATA bus and connections for VDU keyboard and mouse Also three Ethernet interface connections and two USB connections are built in on the CPU boa...

Страница 16: ...erial interfaces maximally 10 Y net interface maximally 2 USB interface maximally 2 The interfacing of ProSafe COM can be configured with COM SET ProSafe COM redundancy link ProSafe COM Figure 9 ProSa...

Страница 17: ...face The serial interfaces of ProSafe COM are used for the Modbus RTU protocol ProSafe COM can have maximally 10 serial interfaces Four COM ports are available in the standard ProSafe COM additional C...

Страница 18: ...set Setting a tag is sometimes necessary for start up or maintenance overrides Events can be transferred only upwards from ProSafe safety system to ProSafe COM and further to other systems Tag status...

Страница 19: ...stem For example an OPC A E client or a Modbus master station must actively request event information from ProSafe COM Status information can be represented in two different ways digital and analogue...

Страница 20: ...ected after a recovery from a power down situation Maximal 10 of the available events will be stored on disk For example if the configured event list in memory is 10 000 events long then 1000 events w...

Страница 21: ...ber of overrides that can occur simultaneously 2 5 Configuring ProSafe COM The software running on ProSafe COM must be configured The functionality of ProSafe COM and the way it exchanges data can be...

Страница 22: ...file defines per tag The tag name in ProSafe COM A description of the variable for clarification in the tag file The physical address The original name addresses for the process variable More precise...

Страница 23: ...ent can force the status of a certain tag or group of tags ProSafe COM directly communicates with the appropriate modules via the M BUS M NET Y net or Modbus links and sets the outputs of the modules...

Страница 24: ...atrix panel push buttons the current status of any output arithmetic calculations or the status of a local ProSafe COM tag that is set externally via a DCS command The logic program can logically comb...

Страница 25: ...ing with modules The industrial PC version of ProSafe COM is a 19 inch rack chassis with built in single board computer PCI bus interface boards can be plugged into the 4 spare PCI slots The IPC comes...

Страница 26: ...urrent protocols at the same time Therefore it can be used for different types of communication Ethernet connections can be used for Connecting ProSafe COM to the customer s network during project eng...

Страница 27: ...on modules Module Application Module Function CCM ProSafe PLC PLC central processing unit MBX ProSafe PLC PLC M NET interface unit to M BUS MC 562 MC 573 MC 576 ProSafe SLS Analogue input Digital inpu...

Страница 28: ...the ProSafe PLC Through the PLC I O modules it retrieves values from the inputs and sends appropriate signals to the outputs The MBX module is the intermediate between ProSafe COM and the M BUS ProSaf...

Страница 29: ...COM Figure 21 ProSafe COM as Modbus master in a network with Modbus slaves ProSafe COM Figure 22 ProSafe COM as Modbus TCP master in a network with Modbus TCP slaves All Rights Reserved Copyright Yoko...

Страница 30: ...events can be viewed Statuses of ProSafe COM outputs can also be changed e g in case of overrides Figure 23 Interfacing ProSafe COM This chapter describes the interfacing of ProSafe COM For each inte...

Страница 31: ...nel with fixing problems The printer is a local printer directly connected to ProSafe COM s parallel port or to the parallel port of another computer in the network Only line printers are supported 4...

Страница 32: ...the maximum allowable combined Standard MBI Cable and Extension Cable length exceeds 168 meters and more than 4 PLC racks are used an M NET interface is necessary In M NET the whole network has a maxi...

Страница 33: ...code tells the slave what kind of command the master has given E g one function code tells the slave to give data from a module another will tell the slave to force an output Exception codes give inf...

Страница 34: ...port up to 120 I O modules Modules for safety system I O and matrix panel control can be mixed The Y net is divided in segments each segment can contain 32 modules The segments are separated by bus re...

Страница 35: ...Discrete Module CDM will execute the digital data acquisition and overrides Analogue data Typically the Critical Analogue Module CAM will perform the Analogue status acquisition This paragraph descri...

Страница 36: ...ms resolution and report those events to the CCM In either case the list of recorded events is stored in the CCM using special SOE function blocks The ProSafe COM will retrieve the event information...

Страница 37: ...tus of the ProSafe SLS can be scanned at regular time intervals Five different kinds of status data can be collected Digital input data The digital input module MC 573 performs Digital data acquisitio...

Страница 38: ...analogue input module MC 562 does not record events The I O modules buffer the events till these are read by the ProSafe COM Y net controller The Y net controller CN 956 buffers the events from all I...

Страница 39: ...cting as backup of a V net connection It is also possible to use two ProSafe COM IPCs in a hot stand by mode A redundant ProSafe COM configuration can be built from the normal hardware components ProS...

Страница 40: ...he time master for ProSafe COM is the DCS that is connected via Modbus Again ProSafe COM is the time master for ProSafe PLC and ProSafe SLS When ProSafe COM is running stand alone then ProSafe COM is...

Страница 41: ...ion function block is put in the logic program of all CCMs All CCM clocks and the ProSafe COM system clock are synchronised using a high priority protocol All events in the CCM are time stamped with t...

Страница 42: ...or via a network that supports TCP Modbus TCP Platform COM SET COM SET is a Windows based graphically oriented software package It comprises editors compilers and diagnostics capabilities The package...

Страница 43: ...ws ProSafe COM SET can present the actual status of tags in the system A number of interesting tags are selected from the entire list of tags and grouped into a browse screen The selections can be sav...

Страница 44: ...r permanently and that require maintenance Note that it is possible to assign internal ProSafe COM tags to the individual module statuses and to the overall ProSafe COM status This status can be queri...

Страница 45: ...he DCS engineers can develop their mimics and control functionality and test the communication with the safety system without having a connection to the actual safety system Changes in I O tags and ev...

Страница 46: ...cted to a specific communication channel of ProSafe COM Communication channels are for example V net OPC or the serial Modbus RTU interfaces Advantages of using tags Configuring the communication with...

Страница 47: ...logical V net address defining a boolean with N 0 1 indicating event filtering off no scaling and no write boundary checking and event message category 1 CENTUM CS3000 VP historical overview only plc...

Страница 48: ...COM MODBus COMmunication interface MULCOM MULtiple protocol COMmunication interface HMI Human Machine Interface ProSafe Programmable Safety system ProSafe COM ProSafe COMmunication ProSafe RS ProSafe...

Страница 49: ...onnections for extra reliability of functioning and communication Safety Control Station Safety system consisting of ProSafe COM and ProSafe PLC SCADA Supervisory Control And Data Acquisition A SCADA...

Отзывы: