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Enhanced PLC-5/80 Controller 1785-L80B (discontinued)
| Rockwell lifecycle status | Discontinued 31/07/2017 (read on 25 September 2026) |
|---|---|
| Replacement | TDL proposal (Rockwell names no catalog number) |
The Rockwell product page lists the category Engineering Replacement but names no catalog number. TDL proposes migrating to ControlLogix 5580; during the transition the 1771 I/O racks can stay under a 1756-DHRIO scanner (1756-UM514C p.15), noting that the 1756-DHRIO was also discontinued on 31/12/2024.
Key data
| Memory | 100K word |
|---|---|
| Max I/O | 3072 (any mix) |
| Channels | 4 DH+/Remote I/O + 1 serial RS-232/423/422A |
| Max remote I/O chassis | 92 |
| Replacement category | Engineering Replacement |
| Migration path | ControlLogix 5580 (TDL proposal); keep the 1771 I/O racks under a 1756-DHRIO scanner during the transition (1756-UM514C p.15) — 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 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-L80C15 1771-ASB
Sources
- Rockwell Automation, Rockwell product page 1785-L80B — read on 25 September 2026
- Rockwell Automation, 1785-UM012D — p. 271 (A-3)
- Rockwell Automation, 1756-UM514C — p. 15
- Rockwell Automation, rockwellautomation.com product page