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Allen-Bradley 1756-IB32K ControlLogix 32-Point Digital DC Input Module – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 1756-IB32K |
| Product Series | ControlLogix 1756 |
| Product Type | Digital DC Input Module |
| Product Version | Conformally Coated |
| Number of Inputs | 32 points |
| Input Configuration | 2 groups of 16 inputs |
| Voltage Category | 12/24 VDC Sink |
| Nominal Input Voltage | 24 VDC |
| Operating Voltage Range | 10–31.2 VDC |
| Maximum Off-State Voltage | 5 VDC |
| Maximum Off-State Current | 2.27 mA |
| Minimum On-State Current | 4.8 mA at 10 VDC |
| Maximum On-State Current | 5.5 mA at 31.2 VDC |
| Input Impedance | 5.67 kΩ maximum at 31.2 VDC |
| Input Delay (Off to On) | 380 μs maximum plus selectable filter time |
| Input Delay (On to Off) | 420 μs maximum plus selectable filter time |
| Input Filter Settings | 0, 1 or 2 ms (Off-to-On); 0, 1, 2, 9 or 18 ms (On-to-Off) |
| Input Timestamp Accuracy | ±200 μs |
| Isolation Voltage | 250 V continuous |
| Backplane Current at 5.1 VDC | 120 mA |
| Backplane Current at 24 VDC | 2 mA |
| Total Backplane Power | 0.66 W |
| Maximum Power Dissipation | 6.2 W |
| Thermal Dissipation | 21.1 BTU/hr |
| Removable Terminal Block | 1756-TBCH or 1756-TBS6H |
| Connector | 36-pin |
| Slot Width | 1 ControlLogix slot |
| Operating Temperature | 0–60°C |
| Storage Temperature | -40 to +85°C |
| Relative Humidity | 5–95%, non-condensing |
| Dimensions | 50.2 × 16.9 × 14.5 cm |
| Approx. Weight | 1.9 kg |
| Country of Origin | United States (Rockwell listing; actual manufacturing origin may vary) |
| Lifecycle Status | Active |
FAQ
FAQ
Q1: What is the Allen-Bradley 1756-IB32K?
A: It is a 32-point digital DC input module designed for Allen-Bradley ControlLogix PLC systems.
Q2: How many input channels does it provide?
A: It provides 32 digital input channels, arranged in two groups of 16 points.
Q3: What is its operating voltage range?
A: It operates from 10 to 31.2 VDC, with a nominal input voltage of 24 VDC.
Q4: What is the difference between 1756-IB32K and 1756-IB32?
A: Both modules provide 32-point, 12/24 VDC digital input functionality. The 1756-IB32K is the conformally coated version, offering additional protection against environmental contaminants.
Q5: Does the module support input filtering?
A: Yes. It provides configurable input filter settings to help prevent unwanted signal changes caused by electrical noise or contact bounce.
Q6: Which terminal blocks are compatible with this module?
A: It supports the 1756-TBCH and 1756-TBS6H removable terminal blocks. These are separate accessories.
Q7: What are the operating temperature and isolation ratings?
A: The operating temperature is 0–60°C, and the isolation rating is 250 V continuous.
Q8: Is the 1756-IB32K suitable for industrial environments?
A: Yes. Its conformal coating provides additional protection for electronic components in industrial environments. It should still be installed in an appropriate control cabinet.
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Packing & Delivery
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