Universal Sensor Input, Configuration Communications,
Red/Green
Input
Functionsinput sensor
none,
idle set point, alarm reset, tune, silence alarm, manual/auto mode, control outputs off, lock keypad, force alarm,
Network
remote user interface, personal computer, programmable logic controller, human- machine interface
current transformer
Analog Input 1 thermocouple, RTD, process (V, mV, mA, 1k po- tentiometer)
Digital Input (or Output) 5
(optional) none, switch, volts dc
Digital Input (or Output) 6 (optional) none, switch, volts dc
EZ Key programmable event
EIA 485 Communications
Standard Bus, Modbus RTU (optional)
Analog Input 2
current transformer
PID
Controller
Board
Slot A
Supervisory
&
Power
Board
Slot C
Current
Transformer
Board
(optional)
Slot B
Output 1 none, switched dc/open collector, form C mechanical (5 A) or
Output 2 none, switched dc,
Digital Output (or Input) 5 (optional) none, switched dc
Digital Output (or Input) 6 (optional) none, switched dc
Output 3 none, switched dc/open collector, form C mechanical (5 A) or
Output 4 none, switched dc, form A mechanical (5 A) or
Output
Functions
off, heat, cool, duplex, alarm, retransmit, event
off, heat, cool, alarm, event
off, heat, cool, alarm, event
off, heat, cool, alarm, event
off, heat, cool, alarm, event, retransmit
off, heat, cool,
alarm, event
•detects heater current flow
•provides an alarm indication of a
Watlow | • 4 • | Chapter 1 Overview |