Allen-Bradley | 1785-BCM Backup Communications Module
Overview
The 1785-BCM is a Backup Communications Module (BCM) from Allen-Bradley, designed to provide high-speed switchover between communication paths using Data Highway Plus (DH+) and Remote I/O (RIO) protocols. It ensures redundant communication for PLC5 processors, offering seamless backup for critical systems.
Product Specifications
- Brand: Allen-Bradley
- Manufacturer: Rockwell Automation
- Catalog No.: 1785-BCM
- Module Type: Backup Communications Module
- Compatible Processors: PLC-5/15 series B, -5/20, -5/25, -5/30, -5/40, -5/60
- Module Location: 1771 I/O Chassis (local)
- Keying Locations: Between 8 and 10, between 34 and 36
- Weight: 0.3 lbs (0.1 kg)
- Coating: Conformal Coat
Performance & Features
- DH+/RIO Interface: 2
- High-Speed Serial Link Interface: 1
- HSSL Communication Speed: 1.2 Megabaud
- Customer Relay: 0.25A @ 24V DC (resistive)
- Bus Communication: Local PCI 2.3 Compliant
- LEDs: 1 Diagnosis/Status per channel
Electrical & Environmental
- Operational Temperature: 0°C to 60°C (32°F to 140°F)
-
Certification:
- UL – Industrial Control Equipment, E65584
- CSA – Class 1, Division 2, LR69960C
- Required External Power: None
- Typical AC Signal Delay (Off): 29 (+/- 8) ms
- Typical DC Signal Delay (Off): 30 (+/- 7) ms
Dimensions
- Size: 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Max Modules Per System
- Limit: 4
Allen-Bradley | 1785-BCM Backup Communications Module
Allen-Bradley | 1785-BCM Backup Communications Module
Overview
The 1785-BCM is a Backup Communications Module (BCM) from Allen-Bradley, designed to provide high-speed switchover between communication paths using Data Highway Plus (DH+) and Remote I/O (RIO) protocols. It ensures redundant communication for PLC5 processors, offering seamless backup for critical systems.
Product Specifications
- Brand: Allen-Bradley
- Manufacturer: Rockwell Automation
- Catalog No.: 1785-BCM
- Module Type: Backup Communications Module
- Compatible Processors: PLC-5/15 series B, -5/20, -5/25, -5/30, -5/40, -5/60
- Module Location: 1771 I/O Chassis (local)
- Keying Locations: Between 8 and 10, between 34 and 36
- Weight: 0.3 lbs (0.1 kg)
- Coating: Conformal Coat
Performance & Features
- DH+/RIO Interface: 2
- High-Speed Serial Link Interface: 1
- HSSL Communication Speed: 1.2 Megabaud
- Customer Relay: 0.25A @ 24V DC (resistive)
- Bus Communication: Local PCI 2.3 Compliant
- LEDs: 1 Diagnosis/Status per channel
Electrical & Environmental
- Operational Temperature: 0°C to 60°C (32°F to 140°F)
-
Certification:
- UL – Industrial Control Equipment, E65584
- CSA – Class 1, Division 2, LR69960C
- Required External Power: None
- Typical AC Signal Delay (Off): 29 (+/- 8) ms
- Typical DC Signal Delay (Off): 30 (+/- 7) ms
Dimensions
- Size: 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Max Modules Per System
- Limit: 4