User lock-out of the BC bus coupler
PCD0
26/766 E2
(HB_PCD0 26 766_E2.DOC)
SAIA-Burgess Controls Ltd.
Page 127
7
User lock-out of the BC bus coupler
Some functions which you can access via the keypad of the bus
coupler must be protected against unauthorized use as they will have
a direct impact on the operation of the controlled plant.
A user lock-out is therefore provided for FORCE, LOCK, STOP modes
and service functions 1, 2, 5, 6, 9, 10.
You can activate a user lock-out on
safety level I or II
. Safety level II
uses a password protection.
Key to picture:
Power on
1 Password saved YES / NO
User lock-out deactivated
2 PLC Start or Service function 7 par. 1
3 PLC Stop or Service function 7 par. 0 or bus connection interrupted
4 User lock-out deactivated until next Reset
Service function 7 par. 15
Safety level I
5 User lock-out active (Operation locked)
PLC sets password
6 PLC changes password