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Can a RoHs version of the NOE77101 be downgraded to version 3.xx

Goals and Symptoms

Can a RoHs version of the NOE77101 be downgraded to version 3.xx

Facts and Changes

140NOE77101

Causes and Fixes

The RoHs versions of the NOE77101 cannot be downgraded to exec firmware 3.xx becuase of the
differences in the internal components. Only non-RoHS NOE77101 can be upgraded from 3.xx to
4.xx and downgraded back to version 3.xx.

If you try to downgrade a RoHs version of the NOE77101, it will make the unit inoperable. When this
happens, the unit must be sent back to the factory for repair.


Legacy KB System (APS) Data: RESL200042 V1.0, Originally authored by AlCh on 02/12/2010, Last Edited by AlCh on 02/12/2010
Related ranges: Modicon Quantum
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