Modbus Register Overview; Register Block Overview; Cim Configuration Register Block - Grundfos CIM 200 Functional Profile And User Manual

9. Modbus register overview

9.1 Register block overview

The Modbus functional profile registers are grouped in the following register blocks:
Start address Register block
00001 CIM configuration
00021 CIM status
System control and
00101
configuration
00201 System status
00301 System data
00401 Pump 1
00451 Pump 2
00701 Alarm simulation
00751 User
05001 Clock scheduler
06001 Event log
07001 Data log index
07301 Data log series
All addresses contain registers. Some are bit-interpreted while
others are 16-bit values, or high or 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.

9.2 CIM configuration register block

Registers in this block can be read by means of function codes
0x03 and/or 0x04. They can be written as holding registers with
function codes 0x06 and 0x10.
Address Register name
00001 SlaveMinimumReplyDelay
00002
00003 SoftwareDefinedModbusAddress
00004 SoftwareDefinedBitRate
00005 AutoAckControlBits
Permissions Description
R/W Configuration of the CIM module itself.
R Status registers for the CIM module itself.
W Registers for control and configuration of the system.
R Registers for status from the system.
R Registers for measured values from the system.
R Registers containing pump 1 data and status.
R Registers containing pump 2 data and status.
R/W Registers for simulation of alarms and warnings.
R/W Registers where the user can freely store data.
R/W Registers where the user can configure the clock scheduler
R Registers containing the latest 40 event log entries.
R Index for the configurable data log series.
R Configurable data log series.
Description
The minimum reply delay from the slave in ms.
Value range: 0-10000, meaning that a reply delay of up to 10 seconds. This
delay is typically used in conjunction with a radio modem. The delay value
is stored in the device and remains after a power-off. The delay set here is
added to the internal delay in the device.
Default setting: 0.
RESERVED
This register holds the active Modbus address. The default setting is 0xE7
(231), and there is normally no need to change this value.
Note that for CIM 200, this value is only used when you have set the
transmission speed to "Software-defined" on the DIP switches SW4 and
SW5. Otherwise, CIM 200 ignores it.
Modbus software-defined transmission speed enumeration.
The software-defined transmission-speed value is stored in the device and
remains after a power-off.
0: 1200 bits/s
1: 2400 bits/s
2: 4800 bits/s
3: 9600 bits/s
4: 19200 bits/s
5: 38400 bits/s.
Note that this value is only used when you have set the transmission speed
to "Software-defined" on the DIP switches SW4 and SW5. Otherwise, CIM
200 ignores it.
The register is used to select the behaviour of control bit
acknowledgements from the module.
0: Disabled.
Control bits are not automatically lowered when accepted by the device.
The user must lower the triggered control bit manually before the control
bit can be triggered again.
1: Enabled.
Control bits are automatically lowered when accepted by the device. The
user does not have to lower it manually (default).
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