Compact 984 MB / MB+

zankorel

Member
Z
Join Date
Dec 2008
Location
Hunter Valley
Posts
173
hi all, this is a bit of a weird problem.

I have an Modicon 984 Compact PLC which has a MB+ and a MB port on it. A SCADA is attached to the MB+ port and is able to get data out fine, but when i connect to the MB port on a laptop, it gives the wrong values. not zeros, but just wrong values that are static (ie dont change).

Has anyone come across this before? I havent tried disconnecting the MB+ when i connect on the MB yet.
 

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