Comtrol Modbus TCP User Guide - Manual (Page 78)

78 - Chapter 5. Alias Device ID Functionality DeviceMaster UP Modbus/TCP User Guide: 2000447 Rev. I
Add/Modify Alias Device ID Configuration Page
5.2.2. Add/Modify Alias Device ID Configuration Page
Access the Add/Modify Alias Device ID Configuration page by clicking the Add/Modify Alias Modbus Device ID
List option from the Alias Modbus Device ID Configuration/Status page to configure or modify existing alias
device IDs.
The Add/Modify Alias Device ID Configuration page follows these guidelines.
• Up to four alias device IDs may be configured at one time.
• A received or alias device ID of zero indicates no configuration.
• Save in Flash must be selected to make the configuration
persistent.
The following configuration options apply:
Name Value(s) Description
Received
Device ID
1-247
The device ID (also often
called the unit ID) of the
received message from a
master.
Alias Device
ID
1-247,254,255
The alias device ID to convert
the received device ID to.
Modbus/TCP
Master Enable On/Off
(Default = Off)
If selected, will apply the
alias device ID configuration
to messages received from
Modbus/TCP masters.
Modbus RTU/
ASCII Serial
Master Enable
On/Off
(Default = Off)
If selected, will apply the
alias device ID configuration
to messages received from
serial Modbus masters.