(SR-22MRD shown with SR-HMI
installed)
The SR family of controllers provide a wide
range of analog, digital and high speed processing options.
The SR family of PLCs is UL508a
compliant when used with Class II power. (Applicable to the DC units.) Slave
UL508a compliant relays should be used when switching voltages greater than 48
Vdc.
The SR operator interface panel (HMI)
provides for an alpha-numeric LCD screen to display and modify time, I/O
status and counter/timer/analog values. Up to 64 user defined display
screens are supported. Eight key inputs (4 function keys, 4 direction keys)
allow operators to traverse menus and to enter and modify parameter
values.
AC powered units provide AC digital inputs and
Relay outputs.
DC powered units provide DC digital inputs and
Relay or solid state outputs.
DC Powered units also allow a number of the
inputs to be optionally treated as 0-10 Vdc analog inputs. Analog processing
capabilities include the ability to compare analog values and to trigger digital
events using preset analog thresholds.
Optional interface units allow the connection of
a telephone interface, allowing remote call-up and control and local voice
alarms, a remote control module allowing a hand held controller to affect
controller functions and a Modbus communications module.
DEVELOPMENT SOFTWARE
APB Controllers are programmed using a
Function Block Programming language. The APBSoftware program development package
provides an integrated programmer, debugger, simulator and real-time monitor in
one convenient Windows based package at no cost.
Download SuperCAD software 
Please refer to our PLC Support page for additional tools.
