GE 90-30/20/Micro manual Parameters

4

Parameters:

Parameter			Description
address	The TMR uses three consecutive words (registers) of %R memory to store the
	following:
	•	Current value (CV) = word 1.
	•	Preset value (PV)	= word 2.
	•	Control word	= word 3.
	When you enter a TMR, you must enter an address for the location of these
	three consecutive words (registers) directly below the graphic representing the
	function.
	Note: Do not use this address with other instructions.
	Caution: Overlapping references will result in erratic operation of the timer.
enable	When enable receives power flow, the timer’s current value is incremented. When the
	TMR is not enabled, the current value is reset to zero and Q is turned off.
PV	PV is the value to copy into the timer’s preset value when the timer is enabled or reset.
Q	Output Q is energized when TMR is enabled and the current value is greater than or
	equal to the preset value.

Valid Memory Types:

Parameter

flow

%I

%Q

%M

%T

%S

%G

%R

%AI

%AQ

const

none

address

•

enable

•

PV

•

•

•

•

•

•

•

•

•

•

Q

•

•

•Valid reference or place where power may flow through the function.

GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-15