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2 introduction, Introduction to the microdin controller, Watlow microdin quick start guide – Watlow MICRODIN User Manual

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Watlow MicroDIN Quick Start Guide

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 parame-
ters to satisfy a broad variety of control needs.

The single input can use either a thermocouple or RTD sensor. The single con-
trol 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 electromechani-
cal relay. The network connections allow as many as 32 controllers to be config-
ured 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 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

Note: An electronic copy of this MicroDIN Quick Start Guide and the full version
MicroDIN User’s Manual is available at www.watlow.com/prodtechinfo. Search on
keyword MicroDIN.