EN-3
English
5
4 Frequently asked
questions
1)
Is the Modbus protocol a master or slave protocol? The
Modbus is a slave protocol
2)
Is the Modbus a Modbus RTU or Modbus Ascii? It is an RTU
Modbus
3)
Is the serial interface an RS232 or an RS485?
Modbus supports an RS 485 interface card.
4)
At which transfer rate are the data points transferred?
The standard transfer rate is 9600. However, it must be
adapted to the network.
5)
What are the Modbus slave numbers?
See
6)
Parity, none or even?
The parity is NONE.
7)
Where can the software version of the heat pump manager
be found?
The software version can be read in the operating data
menu.
HINWEIS
The current data point list for the relevant heat pump manager software
version is available for downloading under www.dimplex.de/diagnostic.
Table 4.1:
Modbus slave numbers
5 Technical
specifications
SUPERVISOR_EXTENSION=0
HPM
Modbus
Type
Address
Type
Address
Digital
1
Coil
2
Digital
2
Coil
3
Digital
...
Coil
...
Digital
198
Coil
199
Digital
199
Coil
200
Analogue
1
Register
2
Analogue
2
Register
3
Analogue
...
Register
...
Analogue
126
Register
127
Analogue
127
Register
128
Integer
1
Register
130
Integer
2
Register
131
Integer
...
Register
...
Integer
126
Register
255
Integer
127
Register
256
Operating conditions
0 to 55°C, 20/80% r.h. condensation-free
Storage conditions
-20 to 70°C, 20/80% r.h. condensation-free
Degree of environmental pollu-
tion
normal
Cable dimensioning
Cable 2 x 0.5mm² screened; max. length 50m
Pin
Assignment
1
GND
2
RX+/TX+
3
RX-/TX-
