Register Type
Address
Length
Description
Example
Unit
Data Type
Input Register
(4)
110
2
Cabinet temperature 2
27,7
°C / K
32 bit float
(sw)
Input Register
(4)
114
2
Cabinet temperature 3
27,4
°C / K
32 bit float
(sw)
Input Register
(4)
118
2
Cabinet temperature 4
27,5
°C / K
32 bit float
(sw)
Input Register
(4)
122
2
Cool water valve temperature
15,1
°C / K
32 bit float
(sw)
Input Register
(4)
126
2
Cool water valve temperature set-point
15,0
°C / K
32 bit float
(sw)
Input Register
(4)
130
2
Cool water supply temperature
13,0
°C / K
32 bit float
(sw)
Input Register
(4)
134
2
Cool water return temperature
17,1
°C / K
32 bit float
(sw)
Input Register
(4)
138
2
Differential pressure
2,9
Pa
32 bit float
(sw)
Input Register
(4)
142
1
Set-point for pressure control:
•
0 - Slight negative
pressure
•
1 – Neutral (0 Pa)
•
2 - Slight overpressure
1
-
16 bit int
Input Register
(4)
146
1
Fan speed 1
840
rpm
16 bit int
Input Register
(4)
150
1
Fan speed 2
900
rpm
16 bit int
Input Register
(4)
154
1
Fan speed 3
1080
rpm
16 bit int
Input Register
(4)
158
1
Fan speed 4
840
rpm
16 bit int
Input Register
(4)
162
1
Valve position
20
%
16 bit int
Input Register
(4)
166
2
Low alarm threshold for exhaust
temperature
15,0
°C / K
32 bit float
(sw)
Input Register
(4)
170
2
High alarm threshold for exhaust
temperature
35,0
°C / K
32 bit float
(sw)
Input Register
(4)
174
2
Low alarm threshold for cabinet
temperature
15,0
°C / K
32 bit float
(sw)
Input Register
(4)
178
2
High alarm threshold for cabinet
temperature
35,0
°C / K
32 bit float
(sw)
Input Register
(4)
182
2
Low alarm threshold for cool water
temperature
10,0
°C / K
32 bit float
(sw)
Table 8.2 Readable Data Points (continued)
8 MODBUS TCP/IP Specification
65
Vertiv™ Liebert® DCDactive Fan Module User Manual
