I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12
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2.36. $AAPN
Description:
This command is used to set the communication protocol.
Syntax:
$AAM[CHKSUM](CR)
$
Delimiter character
AA
The address of the module to be set (00 to FF)
P
The command to set the communication protocol
N
0: DCON
1: Modbus RTU
Before using this command, the rear slide switch must be in the INIT
position, see Section A.1 for details. The new protocol is saved in
the EEPROM and will be effective after the next power-on reset.
Response:
Valid Command:
!AASC[CHKSUM](CR)
InValid Command:
?AA[CHKSUM](CR)
!
Delimiter character for a valid command
?
Delimiter character for an invalid command
AA
The address of the responding module (00 to FF)
There will be no response if the command syntax is incorrect, there
is a communication error, or there is no module with the specified
address.