Yokogawa Touch Screen GP20 - Manual (Page 154)

1-140
IM 04L51B01-01EN
1.17.3 Setting Modbus Master Transmission Commands
Path
GX/GP: MENU key > Browse tab > Setting > Setting menu Communication (Serial)
settings > Modbus master > Command settings
Web browser: Config. tab > Communication (Serial) settings > Modbus master
Command settings
Hardware configurator: Communication (Serial) settings > Modbus master Command
settings
Description
Setup Item Selectable Range or Options Default Value
Master command number GX20/GP20: 1 to 100
GX10/GP10: 1 to 50
1
Master command number
Select the command number you want to set.
Command settings
Setup Item Selectable Range or Options Default Value
Type Off, Read, Write Off
Slave 1 1 to 247 1
Data type 1 INT16, UINT16, INT32_B, INT32_L, UINT32_B,
UINT32_L, FLOAT_B, FLOAT_L, BIT
INT16
Register 1 30001 to 39999, 300001 to 365536
40001 to 49999, 400001 to 465536
30001
Channel type 1 Read: Communication channel
Write: IO channel, Math channel,
Communication channel
Communication
channel
First-CH 1 Channel of the channel type —
Last-CH 1 Channel of the channel type —
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”.
Register
Set the register number of the slave.
You can specify an input register in the range of 30001 to 39999 or 300001 to 365536. You
can specify a hold register in the range of 40001 to 49999 or 400001 to 465536.
The register numbers that you can specify vary depending on the type of command. See
page 4-11 in section 4.5, “Modbus Function and Register Assignments”.
Channel type
When the type is set to Read, only communication channels are available.
When the type is set to Write, set the channel type of the data to send.
First-CH, Last-CH
Set the first channel number and the last channel number in accordance with the channel
type.
1.17 Configuring the Serial Communication Function (/C2 and /C3 options)