Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1109
NDR, and ERROR parameters are set for one execution only. Your program
logic must save temporary output state values in data latches, so you can detect state
changes in subsequent program scans.
Table 13- 5 Common condition codes
Function is busy with the first call.
Function is busy with subsequent calls (polls after the first call).
Illegal pointer in parameter x
All internal instance memory in use, too many concurrent instructions in progress
Timeout, module error, or other internal error
Parameterization failed because parameterization is in progress in background.
8083 Buffer overflow:
The CM or CB returned a received message with a length greater than the length parameter
8090 Internal error: Wrong message length, wrong sub-module, or illegal message
Contact customer support.
8091 Internal error: Wrong version in parameterization message
Contact customer support.
8092 Internal error: Wrong record length in parameterization message
Contact customer support.
Table 13- 6 Common error classes
Used to define common port configuration errors
Used to define common transmit configuration errors
Receive configuration 16#81Cx
Used to define common receive configuration errors
Used to define common transmission runtime errors
Used to define common reception runtime errors
Signal handling 16#81Fx Used to define common errors associated with all signal han-
Pointer errors 16#8p01 to 16#8p51 Used for ANY pointer errors where "p" is the parameter number
Embedded protocol errors 16#848x
Used for embedded protocol errors
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