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The project group are going to install a new plc rack above the current cpu rack. New I/O is required and there are no slots available.
The project group were going to install 14 year old PLC hardware as a costs saving as well.
I have requested that they move the current rack 0 and 1, up and insert the new rack underneath to maintain a logical order.
Is there any standard from ISA, ISO, IEC or IEEE that will help my position?
The project group were going to install 14 year old PLC hardware as a costs saving as well.
I have requested that they move the current rack 0 and 1, up and insert the new rack underneath to maintain a logical order.
Is there any standard from ISA, ISO, IEC or IEEE that will help my position?