iSMA-B-MINI/MIX BACnet User Manual
www.ismacontrolli.com
DMP261en | 1st Issue rev. 8 | 05/2022
page 47 of 114
Property
Name
Required
Proprietary
Writeable
Property ID
Data Type
Description
OUT_OF_SERVIC
E
Yes
OUT OF SERVICE
property
POLARITY
Yes
UNITS
Yes
COUNTER
*
Yes
Yes
3001
Unsigned
Table 18. Properties of the Binary Input object
Note:
Object’s
additional properties are saved to maintain the backwards compatibility
with the older firmware version. In the new firmware version, each of the properties has a
corresponding BACnet object.
PRESENT_VALUE Property
The property contains the status of the digital inputs. Shorting the input to G0 sets the
value to 1.
Binary Input COV
In the firmware version above 4.0, MIX and MINI modules support COV (change of value).
It means that the module automatically sends digital input value after every change.
OUT OF SERVICE Property
If the Out Of Service is false, the Present Value property represents the actual value read
from the input. Setting the Out Of Service property to true, stops updating the Present
Value property from the physical input, and allows for entering a custom value into the
Present Value property.
8.2.2 BIA COUNTER Object (Accumulator: 0-12)
The object contains the number of counted pulses represented by the Accumulator Value
BACnet object. This value is also saved in the non-volatile memory, so the information is
stored even after the power cycle finishes. It is possible to reset the counter by entering
0 to the Present Value property of this object.
This value is also available as the BACnet BI Binary Input object property number 3001.
8.2.3 BI COUNTER Object (Analog Value: 2-13)
The object contains the number of counted pulses identical to the Accumulator BACnet
object but stored as the Analog Value object. Not every system supports the accumulator
WARNING!
If the Out Of Service property is false, the Present Value property cannot be
overridden, and the module will return an error message:
“Write
Access
Denied”.
