Control logic units
ISO 14224
Equipment — Safety and control
ID: equip_CL
| URI: https://www.iso.org/standard/64076.html
No definition available.
Properties / Attributes (4)
| Name | Data Type | Unit / Valid values | Required | Definition |
|---|---|---|---|---|
| Application – control logic | — |
Centralized, distributed, man-machine interface | Optional | Where used |
| CLU redundancy configuration | — |
Yes/No | Optional | Specify if there are redundant Control logic units (CLUs) installed |
| Self-test feature | — |
No self-test, automatic-loop test, built- | Required | Degree of self-testing |
| Failure modes | 5 failure modes — click to expand
ERO
Erratic output
FTF
Failure to function on demand
HIO
High output
LOO
Low output
SER
Minor in-service problems
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