Cable Termination Numbering
Thanks to Iyus for giving me some references from the projects.Even we took it as an examples from the projects, but we can use it as references in the future:
REKAYASA - MHI / TEC
Field Instrument (analog transmitter, SOV dll.) = Use plus (+) and minus (-)
Field Instrument ( limit switch, press switch dll) = Use COM, NC or NO
Junction Box = field instrument tag plus terminal number (e.g. 2-PT-001 / TB1-1)
Marshalling panel = Only terminal number (perhaps it would be better if we add tag, e.g. 2-PT-001 / DT1-1)
IKPT - CHIYODA (PPGS Project)
Field Instrument (analog transmitter, SOV dll.) = Use plus (+) and minus (-)
Field Instrument ( limit switch, press switch dll) = pake COM, NC or NO
Junction Box = field instrument tag number
Marshalling panel = field instrument tag number
I know it's to simple to raise this matter on the blog without comparing to International Standard. Iyus give me ANSI/ISA–S5.4–1991 standard of Instruments Loop Diagam for better references. I'll put the review of it on the blog later.
At least it is a good start...
have a nice day...