Message system
Stores the settings of the message system (format1, 4, 5) that is set in the parameter.
CH1
CH2
SD8741
SD8751
R: Read only
Precautions
Do not turn ON or OFF with program or engineering tool.
Time out judge time
Stores the judgment time until the error when a data reception is stopped from the counterpart equipment, set in the
parameter when the power supply is turned OFFON or system is reset.
CH1
CH2
SD8742
SD8752
R: Read only
■Default value of the time-out time
Baud rate (bps)
300
600
1200
2400
4800
Precautions
Set a longer time-out time to the parameter than the required time to receive one character for the baud rate being used.
Do not turn ON or OFF with program or engineering tool.
Serial communication operation mode
Stores the communication function code that the serial communication is being used.
CH1
CH2
SD8503
SD8513
R: Read only
Precautions
Do not change the value with program or engineering tool.
3 MC PROTOCOL
68
3.9 Related Devices
CH3
CH4
SD8761
SD8771
CH3
CH4
SD8762
SD8772
Default value (ms)
50
30
20
10
10
CH3
CH4
SD8523
SD8533
Description
Stores the setting of the message system.
Description
0 to 32767 (ms)
When "0" or negative value is set for the setting value,
the time-out time is set to default value (refer to the
following).
Baud rate (bps)
9600
19200
38400
57600
115200
Description
0: MELSOFT Connection
2: MC protocol
3: N:N Network Communication
5: Non-protocol Communication
7: Inverter Communication
9: MODBUS RTU Communication
12: Predefined protocol support
Other than above: Not used
R/W
R
R/W
R
Default value (ms)
10
10
10
10
10
R/W
R