Features:
- Provides ladder-processing service for GEM80/141 and GEM80/142.
- Retains the distinct 8261-4164 assembly build.
- Operates with the configured 140-series memory and I/O arrangement.
The 4164 suffix is a primary hardware selector for this legacy processor.
Application logic is executed through the installed memory and rack relationships of the controller.
A replacement plan should prove both physical compatibility and recoverability of the running program.
Availability is confirmed against the complete 8261-4164 identity, required condition, quantity and delivery destination at quotation.
Verified resources for GEC Industrial Controls 8261-4164:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Execute established control logic in a GEM80/141 automation rack.
- Support a GEM80/142 installation that specifically uses 4164 hardware.
- Maintain a configuration-controlled spare for legacy processor replacement.
- The 4164 assembly must match the installed 140-series backplane and memory relationship.
- Program and data formats depend on the documented controller generation.
- No interchange with 415x suffixes should proceed without hardware evidence.
- Any application update should preserve an archived pre-change version.
- Revision changes must be documented together with processor and memory labels.
- Post-change verification should cover startup, I/O mapping and sequence behavior.
- Site acceptance records should identify the exact processor used for the validated application.
- Panel work must retain original segregation, earthing and protective practices.
- Functional sign-off should follow the plant's approved change-control procedure.