Processor class
Official product records identify the part as PLC-5/80.
Allen-Bradley · PLC-5/80 processor
Allen-Bradley 1785-L80B PLC-5/80 Processor
PLC-5/80 processor with the documented 100K RAM designation.
01
System Overview
The Allen-Bradley 1785-L80B is identified in official PLC-5 product records as a PLC-5/80 processor with 100K RAM. It is a processor-level component in the PLC-5 family, not a discrete I/O card or PanelView terminal.
The catalog prefix places 1785-L80B in the PLC-5 processor range. The documented processor designation and memory figure are product-identification facts; they do not define the processor’s chassis, interface module, communication option or application program.
PLC-5 publications discuss the processor in relation to complementary I/O and controller-system hardware. That system-level relation is important when reviewing a replacement configuration, because controller capability comes from the processor together with the applicable chassis, power, I/O and communication arrangement.
The reviewed official record for 1785-L80B establishes the PLC-5/80 and 100K RAM identity. It does not provide a single fixed network, I/O count or origin statement for every installed unit, so those details are not invented here.
02
Configuration Reference
- Brand
- Allen-Bradley
- Product type
- PLC-5/80 processor
- Product family
- PLC-5
- Memory designation
- 100K RAM
- Country of Origin
- Not stated in the reviewed official source
- System context
- PLC-5 controller and complementary I/O hardware
- Catalog-number boundary
- 1785-L80B
- Network option
- Not stated in the reviewed official source
03
PLC-5/80 Processor Record
Documented system role
PLC-5/80 Processor Record
The official PLC-5 documentation reference supports the processor-family context for the L80B designation. Its displayed excerpt is kept as a technical source image rather than treated as a wiring diagram.
The image is an official technical-diagram crop with non-diagram page furniture removed. Selecting it opens the complete embedded diagram; its placement is fixed to the adjacent content height and does not stretch the layout.
04
Configuration Notes
Memory label
The documented memory designation is 100K RAM.
Scope
Communication and I/O depend on the complete PLC-5 system configuration.
05
Support Questions
A PLC-5 processor replacement request needs the correct memory class; what is documented for 1785-L80B?
For 1785-L80B, it is identified as a PLC-5/80 processor with 100K RAM.
How do we avoid confusing 1785-L80B with an I/O card during a PLC-5 rack review?
For 1785-L80B, it is a processor-level PLC-5 component, not a discrete I/O module.
Which system elements must be checked alongside 1785-L80B when a controller is being replaced?
For 1785-L80B, the processor must be reviewed with the applicable PLC-5 chassis, power, I/O and communication arrangement.
Can a network option be assumed from the 1785-L80B processor number alone?
For 1785-L80B, no; the reviewed product record does not set a universal network option for this exact catalog number.
What does the PLC-5 front-panel technical diagram help confirm for 1785-L80B service work?
For 1785-L80B, it shows the PLC-5/40, /46, /60, /80 and /86 controller-family front-panel interface context rather than a field-I/O wiring diagram.
Why should a 1785-L80B record keep the full number and 100K designation together?
For 1785-L80B, the PLC-5/80 and 100K RAM identifiers are the documented facts that distinguish the processor record from adjacent PLC-5 variants.
06
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07
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08
No related record found