User Manual

1. Node 1, registers 17 through 32.
2. Node 2, registers 33 through 48.
3. Node 3, registers 49 through 64.
4. Gateway, Slave ID 1, registers 1 through 16.
5. DX83 Ethernet Bridge
DX80 Gateway is Modbus RTU Master
When a DX80 Gateway is set up as a Modbus RTU master device, the communication between the DX83 Ethernet Bridge (used to
configure the network) and the Gateway is ignored. The Gateway acts as the Modbus RTU master device for the system, which may
include other slave Gateways or DX85 Remote I/O slave devices. All communication must go through the master device.
The master table entries define the register-to-register communication for remote I/O points. Each line represents a register/point connec-
tion between the master device and a Modbus slave device with up to 32 table entries possible. For each table entry, specify the local
Modbus register, action to perform, type of external point, external register number, external slave number, and a Modbus timeout value
for that register access. Active threshold and hysteresis are optional parameters that may be applied to registers.
After making changes:
1. Click on the Change button to send the changes to the DX83 Ethernet Bridge or the GatewayPro.
2. Click on the Send button to send these changes to the radio devices.
3. To save the changes to the XML file, go to the System > Setup > Config File page and click the Save button.
This sample network shows a DX80 Gateway as the Modbus RTU Master device. Once the Gateway is set as the master, communica-
tion is ignored between the Ethernet Bridge (normally the master) and the Gateway.
SureCross Web Configurator
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