76 WiNG-MGR v2 User Guide 800.518.1519
As you can see from the above table, each sensor occupies 20 modbus registers. Sensor 1
occupies registers 40001 - 40020, sensor 2 data occupies registers 40021 - 40040; sensor
3 data occupies registers 40041 - 40060, sensor 4 data occupies registers 40061 - 40080,
etc. Use the range of your sensor’s modbus registers and the table above to determine the
register information for each of your sensors.
BACnet Instances are as follows, where the n is replaced with the sensor’s sensor
number. If you were determining communications objects for sensor number 28:
– ai: n01 = ai: 2801
– ai: n02 = ai: 2802
– ai: n03 = ai: 2803
– av: n01 = av: 2801
– av: n02 = av: 2802
SNMP Object Identifiers are as follows, where the last digit, n, is replaced with the
sensor’s sensor number
Sensor Value
Modbus
Register
BACnet
Instance
SNMP OID
1 ID 40001
(int16)
n/a 1.3.6.1.4.1.3184.1.15.2.2.1.2.1
Serial Number 40002
(uint32)
n/a 1.3.6.1.4.1.3184.1.15.2.2.1.3.1
Name 40004
(int16)
n/a 1.3.6.1.4.1.3184.1.15.2.2.1.4.1
Reading #1
Temp (deg x 10)
40013
(int16)
ai: 101 1.3.6.1.4.1.3184.1.15.2.2.1.6.1
Reading #2
Humidity (%RH)
or Digital Input
40014
(uint16)
ai: 102 1.3.6.1.4.1.3184.1.15.2.2.1.7.1
Reading #3
Counter
40015
(uint32)
ai: 103 1.3.6.1.4.1.3184.1.15.2.2.1.8.1
Battery Level 40017
(uint16)
av: 104 1.3.6.1.4.1.3184.1.15.2.2.1.9.1
Service Status
b8-b4 - not used
b3 - Alarm
b2 - Low battery
b1 - Offline
40018
(uint16)
n/a 1.3.6.1.4.1.3184.1.15.2.2.1.10.1
Age of Sensor
Data (seconds)
40019
(int16)
av: 101 1.3.6.1.4.1.3184.1.15.2.2.1.11.1
Offline Delay 40020
(uint16)
n/a 1.3.6.1.4.1.3184.1.15.2.2.1.12.1
Table A.1
Modbus Registers, BACnet Instances, and SNMP OIDs