ABLELink MB5000 Series User Manual page 17

User manual Version 1.0
Modbus Gateway
ID routing-table: Master ID and Slave ID modes.
Master ID 1-10
to Slave ID 1-10
Slave serial ID 1-10
Master ID: The Master ID is a virtual ID and each field must not duplicate with another.
Slave ID: Slave ID is the applicable ID range provided for the slave device.
As indicated above, the Modbus Gateway uses 3 ports with each port connecting to
10 serially connected Modbus slave devices ID range 1-10. During setup, the Master
ID 1-10 corresponds to Slave ID 1-10, Master ID 11-20 corresponds to Slave ID 11-20,
and Master ID 21-30 corresponds to Slave ID 21-30. When master sends the request
for ID 1, 11, and 21, the Modbus Gateway will automatically convert to ID1 and send
the request to the corresponding slave device, subsequently the slave response will
also be automatically be converted to the corresponding 1, 11, and 21 replying to
master.
Slave serial ID 1-10 Slave serial ID 1-10
Master Request
ID 1-30
Master ID 11-20
to Slave ID 1-10
Master ID 21-30
to Slave ID 1-10