Mode Switching Function; Data To Be Specified In Command - Mitsubishi Electric MELSEC IQ-R series Reference Manual

13.4

Mode Switching Function

The mode switching function is a function to switch the current communication protocol (operation mode) or transmission
specification for the specified interface from external devices after C24 starts up. For more details on the mode switching
function, refer to the following manuals.
 MELSEC-Q/L Serial Communication Module User's Manual (Application)
 MELSEC iQ-R Serial Communication Module User's Manual (Application)
The command can only be used for C24 (including multidrop connection station) connected to the external
device. It cannot be used via network.

Data to be specified in command

This section explains the contents and specification method for data item which is set in the command to switch mode.
Channel No.
Specify the target interface.
Target interface
CH1
CH2
Switching instruction
Select which specify the contents to be switched, by data in the command or by Engineering tool.
Bit Item Setting of Engineering tool
b0 Mode No. Communication protocol setting
b1 Transmission Transmission setting
setting
b2 Communicati Communication speed setting
on speed
b3 to b7 (Fixed to '0')
■Data communication in ASCII code
Convert the numerical value to 2-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send a 1-byte numerical value from lower byte (L: bits 0 to 7).
Ex.
When the switching instruction is '1' (Only mode No. is specified by command)
ASCII code
0 1
30 31
H H
ASCII code
0 1
30 31
H H
0 2
30 32
H H
OFF (0)
Specified by Engineering tool
Binary code
01
H
13 SERIAL COMMUNICATION MODULE DEDICATED COMMANDS
Binary code
01
H
02
H
ON (1)
Specified by command
13.4 Mode Switching Function
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