Firmware V3.00
05.08.2019
38/100
6.2.1 Setting CAN bus address
Setting of the CAN bus address (Kn.nnn = 1..99) is performed using the two decade switches
S1
and
S2
. An
individual CAN bus address must first be set at the two decade switches on all case controllers that are
installed in refrigerated cases
before
commissioning.
S1
(10 position)
S2
(1 position)
Configured
CAN bus address
Function
0
0
00
CAN bus interface inactive (disabled)
0
1..9
01..09
Case controller: CAN bus address assigned
1..9
0..9
10..99
Example:
S1
= 3 = 3 x 10 = 30 and
S2
= 4 = 4 x 1 = 4
→ CAN bus address = S1 + S2 = 30 + 4 =
34
Risk of confusion!
In order to avoid mix-ups, it is recommended to use the position number of the
refrigerated case as CAN bus address. A different CAN bus address that must be unique in this system
must be allocated to each refrigeration point. The CAN bus address is inactive if both decade switches
are set to 0 (i.e. the address is 00). The controller is
not
recognised as a bus node.
The case controller does not accept the settings on the decade switches
S1
and
S2
until after the
controller has been briefly disconnected from the power supply! In the case of case controllers that are
installed in a switch cabinet, the CAN bus address has been set by the manufacturer. However, it can
be subsequently adjusted.
