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12.4.
Discrete Inputs
Discrete Inputs are read using function code 02.
Discrete Input (Digital Input)
Register Name
Addr
Room Thermo 1 (IN1)
0
Room Thermo 2 (IN6)
1
Flow SW1 (IN2)
2
Flow SW2 (IN3)
3
Flow SW3 (IN7)
4
Demand (IN4)
5
Outdoor Thermo (IN5)
6
Heat Pump Master ON/OFF
7
Heat Pump Slave 1 ON/OFF
8
(address 2 for CAHV/CRHV)
Heat Pump Slave 2 ON/OFF
9
(address 3 for CAHV/CRHV)
Heat Pump Slave 3 ON/OFF
10
(address 4 for CAHV/CRHV)
Heat Pump Slave 4 ON/OFF
11
(address 5 for CAHV/CRHV)
Modicon
Details
Address
10001
0 = OFF, 1 = ON
10002
0 = OFF, 1 = ON
10003
0 = OFF, 1 = ON
10004
0 = OFF, 1 = ON
10005
0 = OFF, 1 = ON
10006
0 = OFF, 1 = ON
10007
0 = OFF, 1 = ON
10008
0 = Stop, 1 = Run
10009
0 = Stop, 1 = Run
10010
0 = Stop, 1 = Run
10011
0 = Stop, 1 = Run
10012
0 = Stop, 1 = Run
Applicable Unit Type
70
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