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Graphical operator interface type ABS CA 511, Installation guide
EN
1.4.2 CAN Termination
The CAN bus shall be terminated at both cable ends.
PC 441 is bus master and has a built-in termination that are always active and
should therefore always be placed in one of the endpoints of the cable.
For other devices you can activate the selectable termination with a switch marked
CAN TERM.
The switch is located next to the CAN socket on the back of CA 511.
Active termination if CA 511 is placed on the other endpoint of the cable.
All other devices between should have their termination switch in Off position.
CAN TERM
CAN TERM
ON
CA 511
Figure 2
CAN network with connection
1.4.3 CAN ID
Only one CA 511 can exist on the CAN bus.
CA 511 use a fixed ID on the bus and no ID settings needs to be done.
1.5 Indicators and settings
The operator panel has 2 LED indicators. The green SUPPLY/WATCHDOG is lit
when the panel has found units to communicate with, otherwise it will flash green.
The second red LED is for indicating alarms.
No settings for the panel is needed.
For operating instructions see PC 441 User Guide.
CAN TERM
OFF
OFF
CA 44x
CA 44x
4
CAN TERM
Always
OFF
ON
CA 44x
PC 441
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