
Atop Modbus Gateway
MB54XX-X Series
User’s Manual V 1.1
33
Slave Interface
When a port is set to slave mode, a Slave interface will be then created for you. Select the
Slave Interface, which is the COM/VCOM/TCP port; then select Alias Mode or Offset Mode
to modify the range and offset as you needed.
Alias Mode maps a virtual ID to a real ID each at the time.
Alias ID which refers to a Virtual ID for the reading Master node.
Real ID which is the real ID from the slave node.
Offset Mode which refers to a range of defined ID maps.
Slave ID Start Virtual ID’s start number.
Slave ID End Virtual ID’s end number.
Slave ID Offset Real ID range, which is from (Slave ID Start -Offset) to (Slave ID
End-Offset).
Fig. 3. 17
Note: on VCOM, TCP and COM, Master and Slave IDs can be set, while on COM and VCOM work only with Serial
ports.
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