oventrop Aktor M ST L Modbus Operating Instructions Manual page 15

„Aktor M ST L Modbus"
10. Appendix
10.1 Modbus topology
MASTER
Illust. 7: Modbus topology
NOTICE
Disturbances during signal transmission in the bus system
If the Modbus is not terminated correctly, communication disturbances between the components may
occur.
f Install a terminal resistance (120 Ohm) at the beginning and the end of the Modbus between the
data lines D+ and D-.
10.2 Data point list
Register Data Name
address type
0 uint16 Type
1 uint16 FW version
2 uint16 HW identifier
3 uint16 SerNum1
4 uint16 SerNum2
5 uint16 SerNum3
101 uint16 Time hour
102 uint16 Time minute
105 uint16 RS485 Baud rate
106 uint16 RS485 Stop bits
107 uint16 RS485 Parity
110 uint16 Selection of the current
valve characteristic line
113 uint16 Maximum volume flow
of the selected valve
101274584-V01.11.2019
00
AKTOR
1 2 3 4
R/W
r
r
r
r
r
r
r/w
r/w
r/w
r/w
r/w
r/w
r
01
AKTOR
1 2 3 4
Values
1: Aktor
e.g. 123 = version 1.23
e.g. 0x00F1
0-65535
0-65535
0-65535
0-23 to be set manually (no battery buffered RTC)
0-59 to be set manually (no battery buffered RTC)
0: default (38400,N,8,2) ; 1: 9.600 ; 2: 19.200 ; 3: 38.400 ; 4:
57.600 ;
5: 115.200
1, 2
0: none ; 1: even ; 2: odd
0: linear
1: Cocon QTR DN40 1500-7500 l/h
2: Cocon QTR DN50 IG 3500-14000 l/h
3: Cocon QTR DN40 AG 1500-7500 l/h
4: Cocon QTR DN50 AG 3500-10000 l/h
5: Cocon QFC DN40 1500-7500 l/h
6: Cocon QFC DN50 2000-8000 l/h
In l/h, is set when selecting the valve characteristic line
02
AKTOR
1 2 3 4
Appendix
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