Allen-Bradley ClutchBrake PLC-5 Series - Classes of Memory Protection; Class Privileges; Read;Write Access by Class; Program Files

Appendix D
Publication 65566.5.1 - October 1996
Classes of Memory Protection
We have assigned privileges to four classes of memory protection.
Class 1 has access to all processor functions. The password for
class 1 is kept confidential at the factory. We show you how to
assign your own passwords to classes 2-4 in chapter 5.
Privilege Class 1 Class 2 Class 3 Class 4
Modify privileges X
Create/delete data table files X X X
Create/delete program files X X X
Write/edit ladder files X X X X
Download ladder files X X X X
Read ladder files X X X X
Upload ladder files X X X X
Change processor mode X X X X
Force I/O X X X
Force I/O in Sequential Function Charts X X X
Clear memory X
Restore X X X
Edit on line X X X
We have assigned the following R = Read W = write access by class
to clutch/brake control program and data files (files not listed are not
protected):
Program Files
File Name Type Class 1 Class 2 Class 3 Class 4
0 n/a system RW RW RW RW
2 main ladder RW R R R
3 user main ladder RW RW RW RW
15 C/B interlock ladder RW RW R R
16 C/B control ladder RW R R R
Class Privileges
Read/Write Access
by Class