(no communications options 2 to 3)
Universal Sensor Input, Configuration Communications,
Red/Green
Input
Functions
input sensor
none, limit reset, idle set point, tune,
alarm reset, silence alarm, manual/auto mode, control outputs off, lock keypad, force alarm,
Network
remote user interface, personal computer, programmable logic controller, human- machine interface
input sensor
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 thermocouple, RTD, process (V, mV, mA, 1k po- tentiometer)
PID
Controller
Board
Slot A
Supervisory
&
Power
Board
Slot C
Limit
Controller
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
form A mechanical (5 A) relay
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, duplex, alarm, retransmit, event, limit
limit
•Reduces wiring time and termination complexity compared to connecting separate products
•Reduces panel space
•Reduces installation costs
•Increases dependability with backup control sensor operation
•Increases user and equipment safety for
Watlow | • 6 • | Chapter 1 Overview |