YOKOGAWA MW100 - Modbus;Rtu Settings

3-8
IM MW100-01E
3.2 Connection to the MW100
Modbus/RTU Settings
Set the items below to use the Modbus/RTU function.
• For Modbus master, set “Modbus Master Setting 1 and 2.”
• For Modbus slave, set “Modbus master settings 1 and 2,” and “Receiver settings.”
For a description of setting the receiver, see “Connecting with Serial Communication
(Optional)” in this section.
Modbus Master Setting 1
1.
From the Top screen, click Communication Setting > Modbus Master Setting 1.
2.
Select the Enable check box under Master Function.
3.
Select a communication interval from the Cycle list under Communication.
4.
Select a timeout time from the Communication Timeout list under
Communication.
5.
In the Gap between Messages list under Communication, select a gap time from
receiving of the response until the sending of the next command.
6.
Select a number of times in the Retransmission list under Recovery Action.
7.
Enter a recovery wait time in the Wait Time box under Recover Action.
8.
Click the Apply button. The setting changes take effect.
For a description of the setting items of the Modbus master function, see “Modbus Master
Function (/M1 Option)” under “Modbus Protocol Specifications” in section 5.2.
For a description of the communication timeout, see the Communication Command Manual
(IM MW100-17E).