3100-MCM to York Chiller
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dsroney
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Tuesday 07 September 2004 8:25:45 am |
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3100-MCM to York Chiller
York supplied me with a 3100-MCM instead of a 3100-YORK. Can I still communicate to their chillers? What are the main differences between the modules? Is it possible to flash the MCM to a YORK? How will the programming be different?
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Tuesday 07 September 2004 8:50:36 am |
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RE:3100-MCM to York Chiller
The newer type York Chillers have a standard Modbus interface. The older style York interface was not. If this is a new chiller, then the York people have probably supplied you with the correct module to interface a A-B PLC5 to their unit.
You will need different ladder logic for the 3100-MCM than what you normally use for a 3100-YORK. There is a User's Manual and sample ladder available on the ProSoft website at www.prosoft-technlogy.com. From the red menu bar at the top of the page, click on "Support'; then "Downloads", "InRAx", "Other Modules", "3100-Series", and finally "3100-MCM" to find them. For additional information on using Modbus commands, you can search the Modicon website for a document entitled, "PI-MBUS-300.PDF". This explains the Modbus protocol and packet structure.
A 3100-MCM cannot be flashed or field upgraded to a 3100-YORK.
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dsroney
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Tuesday 07 September 2004 9:05:57 am |
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RE:3100-MCM to York Chiller
So, if I understand correctly, the 3100-YORK is used to communicate on the YORKTALK network directly. The chillers I am interfacing have Optiview panels with Modbus Microgateways so I need the 3100-MCM. I guess the guys at York were trying to keep me on my toes by sending me the 3100-YORK manual and then shipping the 3100-MCM module. I will make sure I get all of the 3100-MCM documentation. Thanks a lot for the information.
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