Modbus Register Overview; Register Block Overview - Grundfos CIU 202 Functional Profile And User Manual

9. Modbus register overview

9.1 Register block overview

The Modbus registers are grouped in the following register
blocks:
Starting
Register block
address
00001 CIM configuration
00021 CIM status
00101 Pit control and configuration
00201 Pit status
00301 Pit data
00401 Pump 1
00451 Pump 2
00501 Pump 3
00551 Pump 4
00701 Alarm simulation
00751-00800 User registers
All addresses contain registers. Some are bit-interpreted while
others are 16-bit values, or part of 32-bit values. A data value of
65535 (0xFFFF) indicates "not available" when reading registers.
The value of 65535 (0xFFFF) does not imply a "disable" when
writing values.
Each register block will be specified in more detail in the following
sections.
16
Permissions Description
R/W Configuration of the CIM module.
R Status registers for the CIM module.
W Registers for control and configuration of wastewater pit.
R Registers for status from wastewater pit.
R Registers for measured values from wastewater pit.
R Registers containing pump 1 data and status.
R Registers containing pump 2 data and status.
R Registers containing pump 3 data and status.
R Registers containing pump 4 data and status.
R/W Features for simulation of alarms and warnings.
R/W This area is for device labelling by the user.