Table of Contents
Advertisement
Modbus Slave Configuration
When the DMS-3K is configured as a Modbus Slave Device, it can communicate to a single Modbus
Master Device.
If the Master is going to retrieve Event Data, you can list the starting register and it will automatically
increment by 60 registers. The register address provided is the location in the unit. (40000 is implied)
Enter the Device address for the Modbus Slave. All other Modbus entry fields are the same as shown
in the Master Configuration.
Figure 3–14b. Serial Communications Configuration Page (Bottom Half)
Systems with CR Option
With CR enabled, alarms from other Logic Card Racks will be sent to the Logic Card Rack with the
CR Master enabled. This allows you to select inputs from all Logic Card Racks on the CR Master for
one Modbus output. For example, if you had a DMS-3K system with 3 Logic Card Racks, and the first
rack had inputs labeled 1-128, second rack with inputs 129-256, third rack with inputs 257-384; the
Modbus input numbers you select for mapping can consist of any inputs from 1-384.
Note: Before configuring Modbus on a unit with the CR Option enabled, you must first configure and
connect all the remote DMS-3K units in the CR Configuration page. If not, you will receive an error
message to do so.
Page 77 of 206
Advertisement
Table of Contents
