20
4 Connecting to power supply
FIBERTRAC 31 • Four-wire 4 … 20 mA/HART
62067-EN-211203
Note:
Make sure that all instruments are using the same software version.
Software version 2.0 is not downward-compatible.
Connect the instruments according to the following wiring plan:
1
1
24
56
91
01
1
22
11
12
21
22
19
20
18
17
14
13
16
15
12
1
1
24
56
91
01
1
22
11
12
21
22
19
20
18
17
14
13
16
15
12
1
1
24
56
91
01
1
22
11
12
21
22
19
20
18
17
14
13
16
15
12
M
S
S
bus
bus
M
S
S
bus
bus
bus
bus
Fig. 16: Electronics and connection compartment with cascading of several
instruments.
M Primary instrument
S Secondary instrument
Information:
For example, a radial connection would be also possible as an alter-
native. Take note of the polarity.
The selection of the two terminal pairs is individual.
