Mitsubishi Electric MELSEC IQ-R series Reference Manual page 266

■Transmission setting
Specify the transmission setting. (Page 261 Transmission setting)
When the setting by command is enabled (Switching instruction: 2, 3, 6, or 7), the transmission setting is changed according
to the specified value.
As for the setting by command is disabled (Switching instruction: 0, 1, 4, or 5), the transmission setting is changed according
to the transmission setting set with Engineering tool
When the setting is invalid, specify '0'.
ASCII code
0 0
30 30
H H
■Communication speed
Specify the communication speed. (Page 262 Communication speed)
When the setting by command is enabled (Switching instruction: 4, 5, 6, or 7), the communication speed is changed according
to the specified value.
When the setting by command is disabled (Switching instruction: 0, 1, 2, or 3), the communication speed is changed
according to the communication speed setting set with Engineering tool.
When the setting is invalid, specify '0'.
ASCII code
0 0
30 30
H H
Example for data communication
Perform mode switching for CH1 interface.
• Operation mode: MC protocol (Format 1) (Specified value: 01H)
• Operation setting: Following settings (Specified value: B0H)
Item
Operation setting
Data bit
Parity bit
Odd/even parity
Stop bit
Sum check code
Online change
Setting change
• Communication speed: 9600bps (Specified value: 05H)
■Data communication in ASCII code
(Request data)
Command Subcommand
1 6 1 2 0
31 36 31 32 30
H H H H H
13 SERIAL COMMUNICATION MODULE DEDICATED COMMANDS
264
13.4 Mode Switching Function
Binary code
00
H
Binary code
00
H
Setting Bit
Independent b0
7 b1
None b2
Odd b3
2 b4
Yes b5
Disable b6
Enable b7
Channel Switching
No. instruction
0 0 0 0 1 0 7
30 30 30 30 31 30 37
H H H H H H H
ON/OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
Mode Transmission Communication
No. setting speed
0 1 B 0 0 5
30 30 42 30 30 35
H H H H H H