Products Description
| Company Information | |||
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| Mobile | +8613950166376 | ||
| +8613950166376 | |||
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Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Allen-Bradley 1791-8BC |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Series | 1791 Block I/O |
| Product Type | Combination Digital Input/Output Block |
| Function | 8-point digital inputs + 8-point digital outputs |
| Network Type | Remote I/O (RIO) |
| Input Channels | 8 points |
| Output Channels | 8 points |
| Input Type | 24 VDC discrete inputs (sinking) |
| Output Type | 24 VDC discrete outputs |
| Input Voltage Range | 10 to 30 VDC |
| Output Voltage Range | 10 to 30 VDC |
| Input Current | ~11 mA max @ 30 VDC |
| External Power Supply | 19.2 to 30 VDC |
| Power Consumption | ~300 mA typical |
| Output Current Capacity | up to 1 A (depends on mounting/temperature conditions) |
| Communication Rate | 57.6 / 115.2 / 230.4 kbps (RIO selectable) |
| Isolation | Group-to-group and logic isolation (industrial-grade) |
| Wiring Interface | Removable terminal block |
| Mounting Type | DIN rail / panel mount |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Physical Dimensions (L × W × H) | 17.65 × 6.88 × 9.80 cm |
| Weight | ~0.25–0.30 kg |
FAQ
FAQ
Q1. What is the main function of the 1791-8BC?
It is a remote I/O block that provides both digital inputs and outputs for Allen-Bradley PLC systems.
Q2. What communication system does it use?
It uses the Allen-Bradley Remote I/O (RIO) network for PLC communication.
Q3. How many I/O points does it have?
It provides a total of 16 points: 8 inputs and 8 outputs.
Q4. What voltage levels does it support?
It operates with 24 VDC field signals within a 10–30 VDC range.
Q5. Does it require external power?
Yes, it requires a 19.2–30 VDC external power supply.
Q6. What PLC systems is it compatible with?
It works with PLC-2, PLC-3, PLC-5, SLC 500, and Logix systems using RIO interfaces.
Q7. What are its physical size and weight?
It measures approximately 17.65 × 6.88 × 9.80 cm and weighs around 0.25–0.30 kg.
Q8. What applications is it typically used for?
It is used in industrial automation systems for distributed control of sensors and actuators in legacy manufacturing environments.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
