NOVA Systems Inc.

April 15, 2016

Modicon 984 PLC Systems

Filed under: Legacy PLCs — Tags: , , , , — novaadmin @ 9:38 pm

Nova has recently completed a service call on a PLC system which dates back to the mid 1980’s. It is truly a testament to the ruggedness of a piece of electronics to still be working after 30+ years of service on a machine tool. At Nova, we have a Modicon 984 rack and CPU set up to help troubleshoot, modify and test PLC programs and I/O cards. Also, Modicon is still available through the Schneider Electric. There are ways to upgrade to newer models, an economic alternative to throwing everything out and replacing with Brand-X.

If you are having problems with a 984 system, please contact us at 414-771-7800 or


Industrial Computer Automation
NOVA Systems Inc.
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