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Siemens SIMATIC S7-1200 CP 1243-8 IRC User Manual

Siemens SIMATIC S7-1200 CP 1243-8 IRC
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CP 1243-8 IRC
Operating Instructions, 02/2018, C79000-G8976-C385-03
167
Program blocks
5
5.1
Program blocks for OUC
Using the program blocks for Open User Communication (OUC)
You can use the instructions (program blocks) listed below for direct communication between
S7 stations.
In contrast to other communication types, Open User Communication does not need to be
enabled in the configuration of the CP because corresponding program blocks need to be
created for this. You will find details on the program blocks in the information system of
STEP 7.
Note
Different program block versions
Note that in STEP 7 you cannot use different versions of a program bloc
k in a station.
Supported program blocks for OUC
The following instructions in the specified minimum version are available for programming
Open User Communication:
TSEND_C V3.0 / TRCV_C V3.0
Compact blocks for:
Connection establishment / termination and sending data
Connection establishment / termination and reception of data
Use as an alternative:
TCON V4.0 / TDISCON V2.1
Connection establishment / connection termination
TUSEND V4.0 / TURCV V4.0
Sending and receiving data via UDP
TSEND V4.0 / TRCV V4.0
Sending and receiving data via TCP or ISOonTCP
TMAIL_C V4.0
Sending e-mails
To transfer encrypted e-mails with this block, the precise time of day is required on the
CP. Configure the time-of-day synchronization.

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Siemens SIMATIC S7-1200 CP 1243-8 IRC Specifications

General IconGeneral
Product TypeCommunication Processor
SeriesSIMATIC S7-1200
ModelCP 1243-8 IRC
Data Transfer Rate10/100 Mbps
Power Supply24 V DC
MountingDIN rail
Dimensions (W x H x D)45 mm x 100 mm x 75 mm
Digital Inputs Quantity0
Digital Outputs Quantity0
Supported ProtocolsISO-on-TCP
InterfaceEthernet
IP AddressingStatic, DHCP
ConfigurationSTEP 7 Basic/Professional
Operating Temperature-20°C to +60°C
WeightApprox. 200 g

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