Control Panel Codes for ANSI /UL508

[504bloke 1]

Doing a Panel for North America, read most of the stuff I need to but can't really find an answer to this

Circuit Breakers labelled CB on drawing, T is transformer, F is Fuse, B induction motor etc etc 

What code do i Label a Siemens PSU 120AC/24Vdc ? ie code lettering on the drawing ? 

What code letter for PLC and IO cards and HMI ?

I found the eaton/moeller reference manual for ANSI but it still doesnt specifically list the PSU and PLC etc..... Only one I can see which would be used is A for separate assembly ???

All USA help appreciated........

Edited 4 Aug 2020 by 504bloke

[pcmccartney1 141]

My company traditionally calls them PSU or PS and PLC.  On the IO Modules DI or IM, DO or OM, AI, AO , TC, RTD, etc...

We are a UL508A facility.

[504bloke 1]

Thanks

What about an EWON gateway and Redlion DSP ? GW & DSP ?

 

 

[pcmccartney1 141]

Well the Ewon is a firewall or router, probably just ETH for ethernet switch.  The DSP is a protocol converter and possibly an HMI.  I've only used one, over a decade ago and called it GTW for gateway.

[504bloke 1]

Thanks Again