PCD0
User lock-out of the BC bus coupler
Page 128
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SAIA-Burgess Controls Ltd.
(HB_PCD0 26 766_E2.DOC)
26/766 E2
Safety level II
User lock-out active, password-protected
PLC releases password protection or service function 8
1. When you switch the bus coupler on it will check whether or not a password has been saved in the
bus coupler. If a password has been saved the user lock-out on safety level II will be activated.
2. If no password has been saved the unit can be operated until the PLC or bus is started. The user
lock-out will be activated on safety level I when you start up the PLC.
3. If the PLC is stopped, a bus cable breaks or you enter service function 7 (page 141) using
parameter 0000 the user lock-out function will be disabled.
4. If you have to carry out maintenance work on the unit you can use service function 7, parameter
0015 to disable the user lock-out function until you reset the bus coupler again.
5. The PLC can lock the operation with a password via the diagnosis data (diagnosis code 6). The
password will be saved in the bus coupler. The password must be a four-digit number between
0000 and 9999.
6. The password can be changed at any time from the PLC.
7. If you enter the password on the bus coupler (via service function 8, password as the parameter)
the user lock-out will be deactivated. The password will not be deleted.
If the PLC changes the password to 0000 the password protection is deactivated and the
password in the bus coupler is deleted.
Confirm or cancel activation of the above operating modes and service
functions with error code E016 (on safety level I) or error code E017
(on safety level II).