User’s Manual of IMG-2x00T Modbus Gateway Series
4.5.4.2 Mapping
The ID Mapping Setup is a routing mechanism for gateway. It can follow routing rule on this table to transfer Modbus request to
the specific serial port or TCP server that connects the Modbus slave device. The screen in Figure 4-5-16 appears.
Figure 4-5-16: Mapping Status Page Screenshot
In block 1, it’s a setting value for slave ID 1~3 that will forward to serial port 1. When you get a Modbus requests with slave ID
1~3, it will follow this rule to be routed to the targeted Modbus slave device. In block 2, you can select the one to add, edit or
delete the rule on the table. The block 1 and block 2 screen in Figure 4-5-17 appears.
Figure 4-5-17: The Block 1 / Block 2 Screenshot
Basic setting
A Modbus device with slave ID 1 can be set to be connected to serial port 1 as shown in Figure 4-5-18
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