ContaminationSensor – CS 2000 series
HYDAC Filtertechnik GmbH
en
Page 48
BeWa CS2000 3117721e en.doc
2008-03-28
10
DIN measurement bus module (option -2)
10.1 Interface
The configuration of the interface and the protocol structure required for
communication are in accordance with the criteria defined in DIN 66348 Part 2.
Basically, the electrical properties correspond to those of an RS 485 interface,
however with the additional feature of implementation of the electrical isolation
between the interface module and the remainder of the circuit as required in the
aforementioned DIN standard.
Data can only be transmitted via this interface using a 4-wire bus in full-duplex
mode.
10.2 Bus
address
Since several CSs can be connected to the same bus, each sensor has to be
assigned an address of its own by which it is accessed. The address range in
accordance with DIN 66348 ranges from 1 to 31. In view of the fact that each
address may only be assigned once, this means that the maximum number of
devices is 31.
When the DIP switch is in the "0" position, the bus address stored in the CS's
memory is used. The BUS address can be set in parameter mode (see the
"Parameter Mode" section in the "Serial RS232 Display and Parameter Setting
Interface") or via one of the optional digital interfaces in the range from 1 to 31.
In any other position, the bus address of the CS is fixed and cannot be changed
either in parameter mode or using one of the optional digital interfaces.
10.3 Settings of the bus address with DIP switch
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
ON
DIP
1 2 3 4 5 6
0
ON
DIP
1 2 3 4 5 6
1
ON
DIP
1 2 3 4 5 6
2
ON
DIP
1 2 3 4 5 6
3
ON
DIP
1 2 3 4 5 6
4
ON
DIP
1 2 3 4 5 6
5
ON
DIP
1 2 3 4 5 6
6
ON
DIP
1 2 3 4 5 6
7
ON
DIP
1 2 3 4 5 6
8
ON
DIP
1 2 3 4 5 6
9
ON
DIP
1 2 3 4 5 6
10
ON
DIP
1 2 3 4 5 6
11
ON
DIP
1 2 3 4 5 6
12
ON
DIP
1 2 3 4 5 6
13
ON
DIP
1 2 3 4 5 6
14
ON
DIP
1 2 3 4 5 6
15
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
ON
DIP
1 2 3 4 5 6
