Owner`s manual

PROGRAMMABLE WALL STATION
Owner’s manual 13
Setting a default baud rate in PROG mode
As shown in the above table, setting a fixed baud rate is possible when connecting a PWS-C to an already
existing CAN-Bus. When connecting a PWS-C in PROG mode, setting the baud rate directly on the PWS-
C is possible by following these instructions:
1. Activate the power supply of the PWS-C
2. Set the desired baud rate using the DIP-switch TERM/BAUD (see page 12)
3. Wait until the new baud rate is adopted, which is signaled by a dimmed CAN-Status-LED.
4. PROG mode settings with DIP-switch TERM/BAUD (see page 12)
The PWS-C can now be taken into operation with the baud rate set under step 2.
Termination
Both ends of a CAN-Bus have to be terminated using a 120 Ω
terminator. Missing or erroneous termination can result in
malfunction. Contact 4 of DIP-switch 1 allows activating the PWS-C’s
integrated terminator (see the following table).
A dark shaded field in the table marks the default setting when
shipped.
The following illustration provides an example of a NetMax-Systems, with Remote Power Amps and
programmable wall station being connected via CAN-Bus. Both ends of the CAN-Bus are terminated using
terminators.
NOTE:
The CAN-Status-LED light for 3 seconds whenever changes are applied to the DIP-switches with
the power supply being activated. The new setting is adopted only when the CAN-Status-LED is
dimmed.
DIP switch 1, Contact 4 Termination
OFF open
ON closed (120 Ω)
Table 4.3: CAN-Bus Termination