Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Allen-Bradley 1785-BCM/C |
| Product Type | Backup Communications Module |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Series | PLC-5 (1771 I/O platform) |
| Function | Provides redundant communication and switchover capability for PLC-5 systems |
| Compatible Platform | 1771 I/O chassis (PLC-5 processors) |
| Supported Processors | PLC-5/15, -5/20, -5/25, -5/30, -5/40, -5/60 |
| Network Interfaces | DH+ (Data Highway Plus), Remote I/O (RIO), High-Speed Serial Link (HSSL) |
| HSSL Speed | Up to 1.2 Mbaud |
| Channel Count | DH+/RIO: 2 channels, HSSL: 1 channel |
| Backplane Power | Supplied via 1771 chassis backplane |
| External Power | Not required |
| Backplane Current | ~1.0 A @ 5 V DC |
| Customer Relay Output | 0.25 A @ 24 V DC (resistive) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5–95% non-condensing |
| Vibration | 2 g (10–500 Hz) |
| Shock | 30 g operating / 50 g non-operating |
| Dimensions (H × W × D) | 115 mm × 317 mm × 160 mm |
| Weight | ~0.1–0.6 kg (varies by revision) |
| Mounting Type | Single-slot module in 1771 chassis |
| Wiring Arm | 1771-WG |
| Lifecycle Status | Discontinued / Legacy |
FAQ
FAQ
Q1. What is the 1785-BCM/C used for?
It is used in PLC-5 systems to provide backup and redundancy for communications, enabling automatic switchover between primary and standby processors.
Q2. Is it a PLC processor?
No, it is a support module, not a CPU. It only handles communication redundancy.
Q3. What networks does it support?
It supports Data Highway Plus (DH+), Remote I/O (RIO), and High-Speed Serial Link (HSSL).
Q4. Does it require external power?
No, it is powered directly from the 1771 I/O chassis backplane.
Q5. What is its main role in redundancy systems?
It manages automatic switchover between primary and standby PLC processors in case of fault or failure.
Q6. What is its data speed?
HSSL communication supports up to 1.2 Mbaud.
Q7. Is it still in production?
No, it is a legacy/discontinued PLC-5 family module.
Q8. What is its installation type?
It installs into a single slot in a 1771 I/O chassis using a 1771-WG wiring arm.
Tags
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.
