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System Overview ProSafe-COM 3.00 

 

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1.5 Functions 

overview 

ProSafe-COM enables communication between the ProSafe safety system and other systems (CENTUM,  
COM SET, other DCS systems etc.). ProSafe-COM functions autonomously and requires no operator 
actions. The basic function of ProSafe-COM is to enable communication between the ProSafe safety 
system and various other systems. The following picture gives a high-level impression of the ProSafe-
COM functions. 

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Figure 7: ProSafe-COM functions 

 
 

Communication with ProSafe safety system 

 
Status of process variables and event messages 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 

 
ProSafe-COM keeps track of changes in the ProSafe safety system and maintains a Sequence of Events 
Recording. All configured signal changes are stored, sorted on time. 
 

Using tags 

 
Tags make communication possible between several systems (for example CENTUM and ProSafe safety 
system). By means of tags it is easy to design the overall communication between available systems. It is 
also possible to define which signals are communicated to what system. Not all systems need the same 
data. So selections can be made by means of groups of tags. 
 

Logical operations 

 
ProSafe-COM has the ability to execute non-safety logic. This facility, for example, can be used to provide 
a cost-effective solution for the implementation of an operator matrix panel.

 

 
 

All Rights Reserved. 

©

 Copyright Yokogawa Europe Solutions B.V. 

TI48J01A00-00E Oct 2010 

 

Summary of Contents for ProSafe-COM

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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