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4. Specifications
4.1 CIM module
General data
Ambient humidity
Operating temperature
Battery, lithium-ion
GENIbus visual diagnostics
Power supply (CIU)
CIU box enclosure class
CIU box dimensions (H x W x D)
Storage temperature
4.2 CIU 202 Modbus RTU
The table below provides an overview of the specifications for
Grundfos CIU 202. For further details, refer to the specific
sections of this functional profile.
Modbus RTU specifications
Modbus connector
Modbus connection type
Maximum cable length
Slave address
Line termination
Recommended cable cross-section
Supported transmission speeds
Start bit
Data bits
Stop bits
Parity bit
Modbus visual diagnostics
Maximum number of Modbus devices 32
Maximum Modbus telegram size
* Can only be set via software.
6
Description
30 % to 95 %
-20 °C to +45 °C
You can only charge the battery if the
battery temperature is within 0 °C to +45 °C.
LED2
24-240 V
IP54
182 x 108 x 82 mm
-25 °C to +70 °C
-13 °F to +158 °F
Description
Screw-type terminal
RS-485, 2-wire + common
1200 m
1-247
On or Off
2
0.20 - 0.25 mm
1200*, 2400*, 4800*, 9600, 19200, 38400
bits/s
1
8
1 or 2
Even parity, odd parity* or no parity
LED1
256 bytes
Comments
Relative, non-condensing.
CIU 262 only.
Will be in one of these states:
Off, permanently green, flashing red, permanently
red.
See section
5.5
LEDs.
Located in the CIU.
Comments
3 pins.
See section
5. CIM 200 Modbus RTU
Conductors: D0, D1 and Common.
See section
5. CIM 200 Modbus RTU
Equals 4000 ft.
Set via rotary switches SW6 and SW7.
See section
5.3 Modbus address
Set via DIP switches SW1 and SW2.
See section
5.4 Termination
resistor.
AWG24 or AWG23
Set via DIP switches SW4 and SW5.
See section
5.1 Setting the Modbus transmission
speed.
Fixed value.
Fixed value.
Set via DIP switch SW3.
See section
5.2 Setting the
parity.
Set via DIP switch SW3.
See section
5.2 Setting the
parity.
Off, flashing green, flashing red, permanently red.
See section
5.5
LEDs.
Using repeaters, this number can be increased.
Legal address range is 1-247.
Total length. Node address and CRC included.
See section
13. Modbus RTU telegram
setup.
setup.
selection.
examples.
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