Watlow MICRODIN - Manual (Page 8)

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1 . 2 Wa t l o w M i c r o D I N 1 . 2 Wa t l o w M i c r o D I N
Introduction to the MicroDIN Controller
The Watlow MicroDIN controller is a DIN rail-mounted, temperature controller.
It uses one input and two outputs, network connections and dozens of
parameters to satisfy a broad variety of control needs.
The single input can use either a thermocouple or RTD sensor. The single
control output provides an open collector or switched dc output signal for a
power switching device with a DC input. The single alarm output is an
electromechanical relay. The network connections allow as many as 32
controllers to be configured and monitored from a single personal computer.
You can configure, operate and monitor the MicroDIN almost entirely from a
PLC or personal computer via a serial connection using RJ-11 jacks. Indicator
lights on the face of the controller monitor error states, power, communications
activity and output activity.
Figure 1.2 - MicroDIN
inputs and outputs in a
thermal system
Address
Power
Comms
Alarm
Temperature Controller
MicroDIN
Temperature Controller
MicroDIN
Control
Output
Input
Error
Address
Power
Comms
Alarm
Temperature Controller
MicroDIN
Temperature Controller
MicroDIN
Control
Output
Input
Error
Address
Power
Comms
Alarm
Temperature Controller
MicroDIN
Temperature Controller
MicroDIN
Control
Output
Input
Error
Address
Power
Comms
Alarm
Temperature Controller
MicroDIN
Temperature Controller
MicroDIN
Control
Output
Input
Error
1 2 3 4
Communications Input and Output
to and from Personal Computer
Per Unit:
• Sensor Input from the process
• Control Output to the process
• Alarm Output about the process
1-32 devices/
EIA-485 Network