PLC 1746-IB32 32-Point 24 VDC Sink Input Module
1746-IB32
32-Point DC Input Module · 24 VDC Sinking Digital Input Module
Lifecycle note: Use the unit nameplate and current official documentation as final references before approving a replacement.
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+86 1535940827532-Point DC Input Module · SL Modular I/O Platform
1746-IB32 is a 32-point 24 VDC sinking input module arranged as four groups of eight inputs for high-density discrete signal acquisition.
The official instructions specify 15 to 30 VDC operation at 50 °C, 15 to 26.4 VDC at 60 °C, 5.1 mA nominal input current at 24 VDC and a maximum 3 ms on/off signal delay.
Commissioning should confirm field polarity, common grouping, terminal assignment, input-device leakage, chassis current budget and the exact series revision because fuse construction differs by revision.
| Manufacturer | PLC |
|---|---|
| Model | 1746-IB32 |
| Product type | 24 VDC Sinking Digital Input Module |
| System family | SL Modular I/O Platform |
| Catalog number | 1746-IB32 |
| Inputs | 32 |
| Input type | 24 VDC sinking |
| Points per common | 8 |
| Operating voltage at 50 °C | 15 to 30 VDC |
| Operating voltage at 60 °C | 15 to 26.4 VDC |
| Nominal input current | 5.1 mA at 24 VDC |
| On-state voltage, minimum | 15.0 VDC |
| Off-state voltage, maximum | 5.0 VDC |
| Off-state current, maximum | 1.5 mA |
| Signal delay, maximum | 3 ms on / 3 ms off |
| Backplane current | 50 mA at 5 VDC; 0 A at 24 VDC |
| Isolation from backplane | 1500 VAC for 1 minute |
| Total heat dissipation | 6.65 W |
1746-IB32 is a 32-point 24 VDC sinking input module for discrete field devices; the source-device polarity, supply voltage and four groups of eight commons must match the wiring design.
1746-IB32 operates from 15 to 30 VDC at 50 °C and 15 to 26.4 VDC at 60 °C, so cabinet temperature and field-supply tolerance affect compatibility.
1746-IB32 divides its 32 inputs into four groups of eight points per common, requiring each field circuit and common return to follow the module terminal assignment.
1746-IB32 has a 1.5 mA maximum off-state current and 3 ms maximum on/off delay; sensor leakage and required machine response must remain within those limits.
Before replacing 1746-IB32, verify series revision, chassis slot, common grouping, terminal wiring, field polarity, backplane current and whether the installed input devices meet its thresholds.
For 1746-IB32, provide the exact catalog and series, quantity, chassis type, supply voltage, field-device type, wiring photographs and any required terminal or connector accessories.
Send the complete 1746-IB32 catalog number, revision, quantity, destination and nameplate photo. Identification details will be checked before availability and lead time are confirmed.
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