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Appendix
„Aktor M ST L Modbus“
16
101274584-V01.11.2019
114
uint16
Volume flow limitation
heating (hydronic bal-
ancing)
r/w
Adjustment value in l/h, can be set between min/max of the
valve
115
uint16
Volume flow limitation
cooling (hydronic bal-
ancing)
r/w
Adjustment value in l/h, can be set between min/max of the
valve
119
uint16
Fluid energy constant
r/w
Default 1162 mW per kg*Kelvin, can be exceeded
123
uint16
Sensor type P1
r/w
0: Off
1: Binary input
2: 0..10V Input
3: KP10
4: NI1000_DIN
5: NI1000_LG
6: PT1000
124
uint16
Inversion P1
r/w
0: = normal ; 1: = inverse
125
int16
Correction factor/offset
P1
r/w
V*100, K*10
126
uint16
I/O type P2
r/w
0: Off
1: Binary input
2: 0..10V input
3: KP10
4: NI1000_DIN
5: NI1000_LG
6: PT1000
8: Y output 0..10V (register 426)
9: Y feedback 0..10V (register 401)
10: Change-over output (0V = cooling, 5V = shut-off,
10V = heating)
127
uint16
Inversion P2 (input)
r/w
0: = normal ; 1: = inverse
128
int16
Correction factor/offset
P2 (input)
r/w
V*100 ; K*10
129
uint16
Inversion P2 (output)
r/w
0: = normal, 1: = inverse
130
uint16
Configuration of the
sources for differential
temperature calculation
r/w
0: Flow and return temperature: bus register value
1: Flow: P1, Return: P2
2: Flow: P2, Return: P1
3: Flow: P1, Return: bus
4: Flow: P2, Return: bus
5: Flow: bus, Return: P1
6: Flow: bus, Return: P2
131
uint16
Configuration of the
sources for room tem-
perature
r/w
0: Bus register ; 1: P1 ; 2: P2
133
uint16
Bus failure function
r/w
0: No monitoring
1: CLOSED in case of timeout (120s)
2: OPEN in case of timeout (120s)
3: Position in register "emergency position" in case of time
-
out