Digi Connect IT 4 User Manual

Services Modbus gateway
Digi Connect IT® 4 User Guide
552
h. To adjust the Modbus server address downward by the specified value prior to delivering
the message, use adjust_server_address:
(config service modbus_gateway client test_modbus_client)> adjust_
server_address value
(config service modbus_gateway client test_modbus_client)>
where value is an integer from 0 to 255. Leave at the default setting of 0 to not adjust the
server address.
If a packet contains a Modbus server address above the amount entered here, the address
will be adjusted downward by this amount before the packet is delivered. This allows you
to configure clients on the gateway that will forward messages to remote devices with the
same Modbus address on different buses. For example, if there are two devices on two
different buses that have the same Modbus address of 10, you can create two clients on
the gateway:
n Client one:
l filter set to 10.
This will configure the gateway to deliver all messages that have the Modbus server
address of 10 to this device.
n Client two:
l filter set to 20.
l adjust_server_address set to 10.
This will configure the gateway to deliver all messages that have the Modbus server
address address of 20 to the device with address 10.
i. Repeat the above instructions for additional clients.
6. Save the configuration and apply the change:
(config)> save
Configuration saved.
>
7. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu. Type quit to disconnect from the device.
Show Modbus gateway status and statistics
You can view status and statistics about location information from either the WebUI or the command
line.
Web
1. Log into the Connect IT 4 WebUI as a user with Admin access.
2. On the menu, select Status > Modbus Gateway.
The Modbus Gateway page appears.
Statistics related to the Modbus gateway server are displayed. If the message Server
connections not available is displayed, this indicates that there are no connected clients.

Digi Connect IT 4 Specifications

General

Brand	Digi
Model	Connect IT 4
Category	Network Router
Language	English