Siemens CP 342-5, Руководство пользователя

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Properties / services
1.2 Communications services
CP 342-5 / CP 342-5 FO
10
Manual, 10/2011, C79000-G8976-C146-09
● S7 communication and PG/OP communication
–
PG functions with uploading / downloading of FM modules, configuration / diagnostics
and routing
– Operator control and monitoring functions (HMI)
Multiplexing TD/OP connections
When multiplexing OP connections, the following acyclic services are supported:
- read once
- write once
- read system status list
– Client and server for data exchange via communication blocks on S7 connections
configured at both ends
The following blocks / functions are available:
BSEND FB 12, BRCV FB 13,
PUT FB 14, GET FB 15
USEND FB 8, URCV FB 9
C_CNTRL FC 62
You will find a more detailed description in /5/ (Page 49)
Note
The partner station can be an S7-300, S7-400 or PG/PC application with SIMATIC
NET OPC server; raw data tags using BSEND/BRECV to WinCC are not supported.
– Server for data exchange on connections configured at both ends without
communications blocks on the S7-300 / C7-300 station
● Open communications services (SEND/RECEIVE interface) over FDL connections of the
following type:
–
Specified FDL connections
– Free layer 2 connections (SDA, SDN)
– Broadcast
– Multicast
The services of the CP 342-5/342-5 FO listed here can be used independently at the
same time.