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9. Modbus register overview
9.1 Register block overview
The Modbus RTU registers are grouped in the following register
blocks:
All addresses contain registers. Some are bit-interpreted while
others are 16-bit values, or high/low order parts 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.
Start address Register block Permissions Description
00001 CIM configuration R/W Configuration of the CIM module.
00021 CIM status R Status registers for the CIM module.
00101 Pit control and configuration R/W Registers for control and configuration of wastewater pit.
00201 Pit status R Registers for status from wastewater pit.
00301 Pit data R Registers for measured values from wastewater pit.
00401 Pump 1 R Registers containing pump 1 data and status.
00451 Pump 2 R Registers containing pump 2 data and status.
00501 Pump 3 R Registers containing pump 3 data and status.
00551 Pump 4 R Registers containing pump 4 data and status.
00601 Pump 5 R Registers containing pump 5 data and status.
00651 Pump 6 R Registers containing pump 6 data and status.
00701 Alarm simulation R/W Registers for simulation of alarms and warnings.
00751 User R/W Registers where the user can freely store data.
00801 Name string R For reading the name string from the CU 361.
02001 Hour log R Registers containing 72-hour logs.
06001 Event log R Registers containing the latest 50 event log entries.
07001 Data log index R Index for the configurable data log series.
07301 Data log series R Configurable data log series.
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