Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
S7-1200 Programmable controller
1112 System Manual, V4.2, 09/2016, A5E02486680-AK
Table 13- 9 Condition codes
Specific protocol does not exist.
81A1 Specific baud rate does not exist.
Specific parity option does not exist.
81A3 Specific number of data bits does not exist.
Specific number of stop bits does not exist.
Specific type of flow control does not exist.
Wait time is 0 and flow control enabled
XON and XOFF are illegal values (for example, the same value)
Error in the block header (for example, wrong block type or wrong block length)
Reconfiguration rejected because a configuration is in progress
Invalid RS422/RS485 mode of operation
Invalid presetting of the receive line for break detection
Invalid RS232 break handling
Negative acknowledgement while reading the module
Negative acknowledgement while writing the module
DP slave or module not available
Send_Config (Configure serial transmission parameters dynamically)
Table 13- 10 Send_Config (Send Configuration) instruction
REQ:=_bool_in_,
PORT:=_word_in_,
RTSONDLY:=_uint_in_,
RTSOFFDLY:=_uint_in_,
BREAK:=_uint_in_,
IDLELINE:=_uint_in_,
USR_END:=_string_in_,
APP_END:=_string_in_,
DONE=>_bool_out_,
ERROR=>_bool_out_,
Send_Config allows the dynamic
configuration of serial transmission
parameters for a PtP communica-
tion port. Any queued messages
within a CM or CB are discarded
when Send_Config is executed.
1
STEP 7 automatically creates the DB when you insert the instruction.