Appendix
A.2 BACnet/ModBus Communications
Data Entry Holding Registers (Read & Write)
Aeration Alarm
Level
Batch Sample
Total
Deadband
Control
Hi Flow Alarm
Level
Lo Flow Alarm
Level
Slew Mode
Selection
Smart Slew
Time Average
Vs Alarm Level
Holding Registers (Read Only)
Aeration
Average Flow
Delta Time
Liquid Flow
Liquid Total
Raw Flow
Signal Strength
Sonic Velocity
50
Description
Address
1115
1107
1105
1109
1111
1101
1104
1102
1113
Description
Address
1015
1003
1011
1001
1007
1005
1013
1009
Register Type
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
Register Type
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
4xxxx Holding Register
Bytes
Data Type
2
INTEGER
4
REAL
4
REAL
4
REAL
4
REAL
2
INTEGER
2
INTEGER
4
REAL
4
REAL
Bytes
Data Type
4
REAL
4
REAL
4
REAL
4
REAL
4
REAL
4
REAL
4
REAL
4
REAL
FST020 IP65 NEMA 4X Quick Start
Operating Instructions, 08/2014, A5E03086489-AJ
Example
50
10.0
0.0
100.0
10.0
1
6
10.0
2100.0
Example
0.0
89.657
191.114
89.723
5436.23
1587.675
73.0
1495.36