Setting Modbus Master Transmission Commands - YOKOGAWA GX20 User Manual

1.22.3

Setting Modbus Master Transmission Commands

Path
Description
IM 04L51B01-01EN
1.22 Configuring the Serial Communication Function (/C2 and /C3 options)
GX/GP: MENU key > Browse tab > Setting > Setting menu Communication (Serial)
settings > Modbus master > Command settings
Web application: Config. tab > Communication (Serial) settings > Modbus master
Command settings > Master command number (display example:
1-20)
Hardware configurator: Communication (Serial) settings > Modbus master Command
settings > Master command number (display example: 1-20)
Setup Item
Master command number
Master command number
Select the command number you want to set.
Command settings
Setup Item
Type
1
Slave
1
Data type
1
Register
1
Channel type
1
First-CH
1
Last-CH
1 Appears when the type is not set to Off.
Type
Set the transmission command operation.
Slave
Set the address of the slave device.
Data type
Set the data type.
The data types that you can specify vary depending on the type of command. For
information on the workflow, see page 4-11 in section 4.5, "Modbus Function and Register
Assignments".
Selectable Range or Options
GX20/GP20: 1 to 100
GX10/GP10: 1 to 50
Selectable Range or Options
Off, Read, Write
1 to 247
INT16, UINT16, INT32_B, INT32_L, UINT32_B,
UINT32_L, FLOAT_B, FLOAT_L, BIT
1 to 9999, 10001 to 19999, 100001 to
165535
30001 to 39999, 300001 to 365536
40001 to 49999, 400001 to 465536
Read: Communication channel
Write: IO channel, Math channel,
Communication channel
Channel of the channel type
Channel of the channel type
Default Value
1
Default Value
App
Off
1
INT16
30001
Index
Communication
channel
—
—
1-201
1
2
3
4
5