Performance Data And Configuration Limits - Siemens SIMATIC S7-1200 CP 1243-8 IRC Operating Instructions Manual

Application and functions

1.7 Performance data and configuration limits

You will find further information on the functionality and configuration of the security functions
in the information system of STEP 7 and in the manual /11/ (Page 227).
1.7 Performance data and configuration limits
Number of CMs/CPs per station
In each S7-1200 station, up to three CMs/CPs can be plugged in and configured, of which a
maximum of one CP 1243-8 IRC.
Connection resources
● Telecontrol connections
The CP can establish connections to up to 4 communications partners.
The partners can be linked redundantly.
When using the ST7 protocol, in addition to this, inter-station communication with up to 4
S7 stations can be operated via the master station.
● TCP connections
The CP can establish connections to up to 4 communications partners (S7 stations).
● Online functions
1 connection resource is reserved for online functions.
● S7 connections
8 connection resources for S7 connections (BSEND/BRCV)
These connections are used for SINAUT ST7 communication.
● S7 routing
Max. 4 connections at the same time
● PG/OP connections
– 2 connection resources for PG connections
– 1 connection resource for OP connections
Number of data points for the data point configuration
The maximum number of configurable data points is 200.
Frame memory (send buffer)
The CP has a frame memory (send buffer) for the values of data points configured as an
event.
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Operating Instructions, 02/2018, C79000-G8976-C385-03
CP 1243-8 IRC