Bradley Smoker PLC-5 Assigning a Privilege Class to a Node, 12-4Protecting Your Programs

12-4Protecting Your Programs

For example, set your privilege classes as follows on the channel privileges screen of your programming software (an X indicates that the privilege is enabled):

Privileges \ Privilege Class Names Class1 Class2 Class3 Class4

Modify Privileges	X	X	X
Data Table File Create/Delete	X
Program File Create/Delete	X	X	X	X
Logical Write	X	X	X
Physical Write	X	X	X	X
Logical Read	X	X	X	X
Physical Read	X	X	X	X
Mode Change	X	X	X	X
I/O Force	X	X
SFC Force	X	X
Clear Memory	X
Restore	X
On-line Editing	X
Modify passwords	X

Assigning a Privilege Class to a Channel or Offline File

You can assign a privilege class to all channels (except remote I/O scanner or adapter channels) and offline files. Each channel and offline file has a Class 1 privilege by default.

The read/write privileges you see on the channel privileges screen apply to read/write access to the channel configuration screen of that channel. The read/write privileges for each channel’s diagnostic file (channel status screen) must be set up through the data table privileges screen. The default privilege fields on the channel privileges screen determine the privilege class of all stations/nodes that are attached through that channel.

IMPORTANT

You cannot assign default class privileges to scanner or adapter channels.

Assigning a Privilege Class to a Node

All stations/nodes default to the same privilege class as that of the channel they communicate through. You can give a node its own privilege class if you want it to have a class different from the default privilege assigned to that channel.

	Node privileges override the default privilege class of the
IMPORTANT
	channel assigned on the channel privileges screen.

Publication 1785-UM012D-EN-P - July 2005