Bradley Smoker PLC-5 user manual Preparing Power-Up Routines, Setting Power-Up Protection, Scan

Chapter 14

Using This Chapter

Setting Power-Up Protection

Preparing Power-Up Routines

For Information About:	Go to Page
Setting power-up protection	14-1
Allowing or inhibiting startup	14-2
Defining controller power-up	14-2
procedure

You can configure your controller so that if a power-loss is experienced while in run mode, the controller does not come back up in run mode. User control bit S:26/1 defines whether power-up protection (e.g., fault routine) is executed upon power-up.

If S:26/1 is	After power loss, the controller
Set (1)	Scans the fault routine before returning to normal program
	scan
	When set, the controller scans the fault routine once to
	completion after the controller recovers from a power loss.
	You can program the fault routine to determine whether the
	controller’s status will let the controller respond correctly to
	logic and whether to allow or inhibit the startup of the
	controller.
Reset (0)	Powers up directly at the first rung on the first program file

Set S:26/1 manually from the Controller Status screen, or latch this bit through ladder logic.

Publication 1785-UM012D-EN-P - July 2005