25
Annex
CAN bus
All devices (level, conductivity, temperature) are interconnected via CAN bus. The CANopen protocol is
used for the data exchange between the equipment groups. All devices have an electronic address –
the node ID. The four-core bus cable serves as power supply and data highway for high-speed data
exchange.
The CAN address (node ID) can be set between 1 and 123.
Setting Node ID
The node ID of the control unit TRS 5-40 depends on the node ID setting of the temperature transmitter
TRV 5-40.
Node ID of the temperature transmitter TRV 5-40
Node ID of the control unit TRS 5-40
2
92
3
93
4
94
5
95
7
97
8
98
9
99
10
100
Please set the node ID of the control unit TRS 5-40 via the 10 pole code switch
D
Fig. 4
in accordance
with the node ID setting of the temperature transmitter TRV 5-40.
To set the baud node ID detach the lower terminal strip
B
. The terminal strip can be detached after
undoing the right and the left fixing screws.
Use a small screwdriver to set the node ID via the switches S 1 to S 7 of the code switch
D
Fig. 4
.
Table Node ID Fig. 11
. Then re-attach the terminal strips and fasten the fixing screws.
Please enter the node ID on the name plate.
