Some early Series A adapters (hardware revision 1.01) cannot be updated beyond firmware revision 3.001. If you own these, consider replacing the adapter.
If the 1734-AENT is already in a running Studio 5000 project, go to the module properties and check "Inhibit Module" to stop active I/O communication. Launch ControlFLASH: Open the ControlFLASH utility . how to update firmware 1734-aent
There are hardware limitations. For example, some older hardware versions of the 1734-AENT cannot be flashed to the newest "incompatible" major firmware revisions. Check the hardware date code or series number on the side of the module against the firmware release notes. Some early Series A adapters (hardware revision 1
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