1-154
IM 04L51B01-01EN
Modbus server settings
Setup Item Selectable Range or Options Default Value
Server name
Character string (up to 64 characters,
A
a
#
1
)
—
Port number Numeric value (1 to 65535) 502
Server name
Set the destination Modbus server name.
If the DNS is available, you can set the host name as a server name.
You can also set the IP address. In this case, the DNS is not required.
Port number
Set the port number of the selected server.
Unless specified otherwise, you do not need to change this number.
Setting Commands
Path
GX/GP: MENU key > Browse tab > Setting > Setting menu Communication(Ethernet)
settings > Modbus client settings > Command settings
Web application: Config. tab > Communication(Ethernet)settings > Modbus client
commandsettings>Clientcommandnumber(displayexample:1-20)
Hardware configurator: Communication(Ethernet)settings > Modbus client command
settings>Clientcommandnumber(displayexample:1-20)
Description
Setup Item Selectable Range or Options Default Value
Client command number GX20-1/GP20-1: 1 to 100
GX20-2/GP20-2: 1 to 200
GX10/GP10: 1 to 50
1
Client command number
Select the transmission command number you want to set.
Command setting
Setup Item Selectable Range or Options Default Value
Type Off, Read, Write Off
Server
1
GX20-1/GP20-1: 1 to 16
GX20-2/GP20-2: 1 to 32
GX10/GP10: 1 to 16
1
Unit No.
1
1 to 255 255
Data type
1
INT16, UINT16, INT32_B, INT32_L, UINT32_B,
UINT32_L, FLOAT_B, FLOAT_L, BIT
INT16
Register
1
1 to 9999, 10001 to 19999, 100001 to
165535
30001 to 39999, 300001 to 365536
40001 to 49999, 400001 to 465536
40001
Channel type
1
Read: Communication channel
Write: IO channel, Math channel,
Communication channel
Read: Communication
channel
Write: I/O channel
First-CH
1
Same as the channel type 1
Last-CH
1
Same as the channel type 1
1 Appears when the type is not set to Off.
1.17ConfiguringtheEthernetCommunicationFunction
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