Modbus Rtu Master/Slave Communication; Configuration; Setting Communication Conditions - Panasonic AFP7CPS4E User Manual

MODBUS RTU
Master/Slave Communication

8.1 Configuration

8.1.1 Setting Communication Conditions

 Configuration
Setting items
Communication mode
Station no.
Baud rate
Data length
Parity
Stop bit
RS/CS
Send waiting time
(set value × 0.01 ms)
Start code STX
Terminator setting
Terminator judgment
time
(set value × 0.01 ms)
Modem initialization
(Note 1) In MODBUS communication, the following setting items need not to be specified.
Start code, terminator setting, terminator judgment time, modem initialization, PLC link setting
8-2
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Default Specification range
MEWTOCOL-
MODBUS-RTU
COM
1 0 - 247
300 / 600 / 1200 / 2400 /
9600 4800 / 9600 / 19200 /
38400 / 57600 / 115200
8 bits 8 bits
Odd Even
1 bit 1 bit
Invalid Invalid / Valid
0 0 - 10000
Invalid -
CR -
0 -
Do not initialize -
Remark
Specify "MODBUS-RTU".
Set a specific station no. for PLC to
be connected to the PLC link. Set a
value that does not overlap with
other devices.
The setting must be done
according to the devices
connected.
The setting must be done
according to the devices
connected. In general, 8-bit length,
even parity, and 1-stop bit is used.
Set this when it is necessary to
delay response to the partner
device in slave communication.
Use the unit in the default setting
as indicated on the left.