The Modbus Multi Register is configured as follows:

1. Go to the Modbus Multi Register object settings panel which is created on the basis of the Modbus Device object.
   

2. In the Address field (1), enter the Multi Register address in the register map of this device. 

   The register map is provided by the vendor.

   
   

3. From the Byte ordering drop-down list (2), select the byte reading order of Multi Register: Little-endian or Big-endian.
4. From the Format drop-down list (3), select the register data format:
   • Dec - decimal.

   • Hex - hexadecimal.

     The Value area (4) displays the current Multi Register value in the selected format.

     
     

5. Click the Read value button (5) if it is necessary to read the device register.
6. Set the Auto update checkbox (6) if it is necessary to automatically read register values with the interval specified on the Modbus Device object settings panel.
7. From the Rule drop-down list (7), select the rule to which this Register will obey (see Configuring the Modbus Rule).
8. Set the Value change checkbox (8) if it is not necessary to display events on register value change in the Event Log. 

9. Uncheck the Indicator change checkbox (9) if it is necessary to allow displaying register values in the plain text on the map.

   Value change of this parameter will be applied after restarting the ACFA-Intellect Server.

   
   

10. Set the Config event checkbox (10) if it is not necessary to display events in the Event Protocol when the rule is triggered.
11. Click Apply (11) to save changes.

The Modbus Multi Register is now configured.