MatrixMonitor™ IOM - Rev 4 - 4/11/2013
Page 70
Abs.
Modbus®
Address Register Operation
Data Description
Units/Notes .
24
40025 R/W
Number of fans in Array 1
1 to 49
25
40026 R/W
Array 1 Fan Model
-----Register Value with: ------
Throat Port
Cone Port
Model No.
Connected
Connected
MTX12
0
1000
MTX15
1
1001
MTX16
2
1002
MTX18
3
1003
MTX20
4
1004
MTX22
5
1005
MTX24
6
1006
MTX27
7
1007
MTX19
20
1020
MTX23
21
1021
MTX25
22
1022
26
40027 R/W
Number of fans in Array 2
1 to 49
27
40028 R/W
Array 2 Fan Model
-----Register Value with: ------
Throat Port
Cone Port
Model No.
Connected
Connected
MTX12
0
1000
MTX15
1
1001
MTX16
2
1002
MTX18
3
1003
MTX20
4
1004
MTX22
5
1005
MTX24
6
1006
MTX27
7
1007
MTX19
20
1020
MTX23
21
1021
MTX25
22
1022
28
40029 R/W
Airflow Signal Limit
Min = 1 CFM x 10,000
The airflow at which the
Max = 30
analog airflow output
voltage (registers 40018
and 40020) correspond to
the maximum output
voltage of 10.0 VDC in
10,000 cfm increments.