ICDM-RX/MOD User Manual
Modbus Menus
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4.4. Modbus Alias Device ID Configuration Page
You can configure up to four alias device IDs at one time.
Access the
Modbus Alias Device ID Configuration
page by clicking
Modbus | Alias Configuration
.
The following configuration options apply:
4.5. Shared Memory Configuration Page
Access the
Shared Memory Configuration
page by clicking
Modbus | Shared Memory
.
The following table displays the supported
Holding Register Block
function codes.
Route on Pre-Alias
Device ID (Default = Off)
This setting only applies to a Modbus message if the following two statements are
true:
•
The Modbus message device ID has been aliased, or changed, as a result of a
corresponding Alias Device ID configuration via the Modbus Alias Id
Configuration page.
•
A Remote Modbus/TCP Device configuration exists for the pre-aliased, or
original, device ID.
If selected and all requirements are true, then the Remote Device ID configuration
for the pre-aliased device ID will be applied to the Modbus message. This includes
the IP address/port, timeout and control flags.
Delete
If enabled, that Device ID or IDs are deleted when you click the
Save
button.
Modbus Alias Device ID Configuration Page
Rx Device ID
The device ID (also often called the unit ID) of the received
message from a master. Device IDs range from 1 to 255.
Alias Device ID
The alias device ID to convert the received device ID to. Alias
Device IDs range from 1 to 255.
Modbus/TCP Master
(Default = Off)
If selected, this applies the alias device ID configuration to
messages received from Modbus/TCP masters.
Modbus Serial Master
(Default = Off)
If selected, this applies the alias device ID configuration to
messages received from serial Modbus masters.
Modbus over TCP Master
(Default = Off)
If selected, this applies the alias device ID configuration to
messages received from Modbus RTU/ASCII over Ethernet TCP/IP
masters.
Holding Register Block Function Codes
3
Read Holding Registers
6
Write Single Register
16
Write Multiple Registers
22
Write Mask Register
23
Read Write Registers
Remote Modbus/TCP Device Configuration Page (Continued)
