Infinite Peripherals SCOM-100 manual Special I/O Functions, 1 ON/OFF and PID control

SCOM-100, User guide 41

4.6 Special I/O Functions

4.6.1 ON/OFF and PID control

Up to four ON/OFF or PID control function blocks are available. Each block uses an analog input for measuring the process value and a digital output for control.

Function block configuration

1250,id,m,n,m1,n1,sp,g,it,dt,ct,h

1250:	Command ID.
id:	Function block ID (1-4).
m:	Module number (0 for SCOM-100 main
	unit, 1-4 for AI-4 expansion units).
n:	Input number (1-2 for SCOM-100 main
	unit, 1-4 for AI-4 expansion units).
m1:	Module number (0 for SCOM-100 main
	unit, 1-8 for DI-42 I/O expansion units).
n1:	Output number (1-4 for SCOM-100
	main unit, 1-2 for DI-42 I/O expansion
	units).
sp:	Set point value in the range of the
	analog input scale.
g:	‘Gain’ value (P) between 1 and 100%.
	The block function depends on the
	‘Gain’ value: A zero value selects the
	ON/OFF control function. A non zero
	value selects the PID function.
it:	‘Integral time’ (I) value between 1-1000
	sec. A zero value disables the integral
	part (not relevant for ON/OFF control).