UK24MOD
Belimo Gateway MP to Modbus RTU
www.belimo.com
UK24MOD • en • v1.7 • 02.2014 • Subject to changes
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Modbus register description
(continued)
Register 12:
Actuator type
Actuator type; the allocation may deviate from the basic category with some actuators.
Actuator type
0
Actuator not connected / not known
1
Air/water actuators with/without safety function
2
Valve actuator, linear
3
Valve actuator, rotary
4
Fire damper actuator
5
VAV controller / EPIV
6
MPL actuator
Note: In the event of a communications interruption, the Gateway will discard the affected
actuator after 10 seconds and reset the actuator type to 0. Monitoring of the actuator is thus
accomplished preferably with this register.
Register 13:
Time monitoring
Remaining time in seconds for the renewal of the override control (fire & smoke only). The
counter will be set to 120 seconds with each writing access at Register 2.
Register 14:
Min / Vmin setting
Minimum limit (position or flow) in hundredths of one percent,
i.e. 0…10,000 corresponds to 0…100%
Attention: Changing the limit may result in malfunction of the device.
Register 15:
Max / Vmax setting
Maximum limit (position or flow) in hundredths of one percent,
i.e. 2000…10,000 corresponds to 20…100%
Attention: Changing the limit may result in malfunction of the device.
Register 16:
Absolute volumetric flow
Absolute volumetric flow (or pressure)
This value is available only for VAV controllers and EPIV units (Actuator Type: 5).
For all other types, 65535 will be entered.
The unit depends on the node type:
[m
3
/h] for VAV controllers
[Pa] for VAV controllers in STP mode
[l/min] for EPIV units
Register 17:
Nominal volumetric flow
Nominal volumetric flow (or pressure)
This value is available only for VAV controllers and EPIV units (Actuator Type: 5).
For all other types, 65535 will be entered.
The unit depends on the node type:
[m
3
/h] for VAV controllers
[Pa] for VAV controllers in STP mode
[l/min] for EPIV units
Service register 1001 (former 161):
Modbus baud rate
Modbus baud rate (=x*100) in accordance with the setting of the DIP switches,
i.e. 96
9600 Baud
Service register 1002 (former 162):
Modbus address
Modbus address (1..247) in accordance with the setting of the DIP switches
Service register 1003 (former 163):
Response delay
Response delay (2…100 ms); the default value is 2 ms; the response delay is set to a fixed 4
ms with a baud rate of 9600.
The response delay must be increased in the event that the Modbus Master is unable to switch
quickly enough from transmission to reception mode.
Service register 1004 (former 164):
Firmware Version
Firmware Version of the device
