GRT1-IA4-2 OMRON GRT1-IA4-2 2-wire connection omron plc module grt1 drt problems

Model: GRT1-ID4.
4 NPN inputs.
24 VDC.
6 mA.
3-wire connection

Model: OMRON GRT1-IA4-2 GRT1-ID8.
8 NPN inputs.
24 VDC.
4 mA.
1-wire connection + 4xG

Model: GRT1-ID4-1. OMRON GRT1-IA4-2
4 PNP inputs.
24 VDC.
6 mA.
3-wire connection

Model: GRT1-IA4-1. OMRON GRT1-IA4--2 OMRON GRT1-IA4-2
4 AC inputs.
110 VAC.
2-wire connection





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