Vilter VSM single-screw ammonic compressor modbus addresses

[rguimond]

Looking for a list of modbus addresses for Vilter single-screw ammonia compressor. 1990s vindage.

I found the operating manual:
http://www.emersonclimate.com/Documents/Vilter/Product_Manuals/Micro-SS-Mini-Screw-Comp-manual-T.pdf

It gives me connection diagram for lead/lag and to PC, but no readable addresses.

I would appreciate anything you can share. Google isn't helping much...

 

[shooter]

afaik: It are dipswitches on the print, and when they are all off it is in software done. Why not use a modbus sniffer?

please send manual and exact type and i will have a search in my books.

 

[rguimond]

The circuit board says: V9443-013C Rev. 3

Vilter Microprocessor Control System