Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
S7-1200 Programmable controller
1114 System Manual, V4.2, 09/2016, A5E02486680-AK
APP_END* IN STRING[5] Specifies the number and the characters to be appended to the transmitted
message (only the characters are appended).
STRING[5,0,aa,bb,cc,dd,ee] – End char is not used (default)
• STRING[5,1,aa,bb,cc,dd,ee] – Transmit one end character
• STRING[5,2,aa,bb,cc,dd,ee] – Transmit two end characters
• STRING[5,3,aa,bb,cc,dd,ee]– Transmit three end characters
• STRING[5,4,aa,bb,cc,dd,ee] – Transmit four end characters
• STRING[5,5,aa,bb,cc,dd,ee] – Transmit five end characters
DONE OUT Bool TRUE for one execution after the last request was completed with no error
TRUE for one execution after the last request was completed with an error
Execution condition code (Default value: 0)
* Not supported for the CM and CB 1241s; you must use an empty string ("") for the parameter.
Table 13- 12 Condition codes
Transmit interrupt configuration is not allowed. Contact customer suport.
Break time is greater than the maximum allowed value.
Idle time is greater than the maximum allowed value.
Error in the block header, for example, wrong block type or wrong block length
Reconfiguration rejected because a configuration is in progress
81B5 The number of end delimiters specified is greater than two or the number of end charac-
ters is greater than five
Send configuration rejected when configured for firmware embedded protocols
Negative acknowledgement while reading the module
Negative acknowledgement while writing the module
DP slave or module not available
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