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PLC-5 1771 Remote I/O Adapter Module 1771-ASB (discontinued)
| Rockwell lifecycle status | Discontinued 31/12/2017 (read on 25 September 2026) |
|---|---|
| Replacement | Rockwell names no catalog number |
The Rockwell product page lists the category Engineering Replacement but names no catalog number. When migrating to ControlLogix, the 1771 racks can be kept by configuring the adapter under a 1756-DHRIO scanner (1771-UM001A p.83); the 1756-DHRIO was discontinued on 31/12/2024.
Key data
| Network | Remote I/O |
|---|---|
| Distance | 10000 ft @ 57.6K baud; 5000 ft @ 115.2K baud; 2500 ft @ 230.4K baud |
| Position | Leftmost slot of the 1771 chassis |
| Cable | 1770-CD |
| Backplane current | 1.0 A @ 5 V |
| Power dissipation | 5 W |
| Replacement category | Engineering Replacement |
| Migration path | Keep the 1771 racks under a ControlLogix 1756-DHRIO scanner (1771-UM001A p.83) — note: 1756-DHRIO discontinued 31/12/2024 |
Lifecycle status changes over time: confirm the current status on the Rockwell product page or in the Product Compatibility and Download Center before ordering.
Related technical articles
- PLC-5 to ControlLogix Migration: Converting the Program, Keeping or Replacing 1771 I/O, and What the Tool Won't Do
- Upgrade Paths for Legacy Allen-Bradley Systems: SLC 500, MicroLogix, 1768, PanelView, FLEX I/O, ControlNet
Related services: Lifecycle review and spare parts Rockwell Automation upgrades
Other catalog numbers in this family: PLC-5 and 1771 Remote I/O
1785-L80E 1785-L80B 1785-L80C15
Sources
- Rockwell Automation, Rockwell product page 1771-ASB — read on 25 September 2026
- Rockwell Automation, 1771-UM001A — p. 11 (1-1); 61 (A-1); 83 (D-3)
- Rockwell Automation, 1756-UM514C — p. 15
- Rockwell Automation, rockwellautomation.com product page