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Digital I/O Units Section 4-6
Error History Tab Page Displays the most recent errors that have occurred.
4-6 Digital I/O Units
4-6-1 Four-point DC Input Units: GRT1-ID4 (NPN) and GRT1-ID4-1 (PNP)
Input Specifications
Item Description
Content Displays the contents of the communications errors that have
occurred.
Unit Conduction
Time
Displays the total time that the network power supply had been
ON when the error occurred.
Item Specification
Model GRT1-ID4 GRT1-ID4-1
Internal I/O common NPN PNP
Number of I/O points 4 inputs
ON voltage 15 VDC min. (between each
input terminal and V)
15 VDC min. (between each
input terminal and G)
OFF voltage 5 VDC max. (between each
input terminal and V)
5 VDC max. (between each
input terminal and G)
OFF current 1 mA max.
Input current 6.0 mA max./point (for 24 VDC)
ON delay time 1.5 ms max.
OFF delay time 1.5 ms max.
Number of circuits 4 inputs with one common
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