Metso Automation MAX Controls Inc. • 277596 •
Chapter 4
Analog Input Modules
3 Wire RTD Module IOP303
Overview
This module features 8 isolated 3-wire RTD input channels.
LED Indication
A green LED, labeled Active at the bottom of the module front panel, is on
when system power is present and the module is communicating with the
DPU. This LED blinks on and off when the module is not being scanned by
the DPU. It is also used to display errors detected by diagnostics.
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