Specifications

Allen-Bradley DF1 Driver Help
Unable to read function file <fun. file element> on device '<device name>'.
Memory map error
Error Type:
Serious
Possible Cause:
There was an error writing to memory on the server.
Solution:
If this error occurs frequently, contact Technical Support.
Unable to read data starting at '<start address>' on device '<device name>'.
Device replied with an unexpected NAK. Check device link protocol
Error Type:
Serious
Possible Cause:
The server either sent an invalid response or one of unexpected size. The server's Protocol Link settings may not
match the device configuration.
Solution:
Ensure that the device's Link Protocol settings match that of the channel's. If this error occurs frequently, contact
Technical Support.
Unable to read function file '<fun. file element>' on device '<device name>'.
Device replied with an unexpected NAK. Check device link protocol
Error Type:
Serious
Possible Cause:
The server either sent an invalid response or one of unexpected size. The server's Protocol Link settings may not
match the device configuration.
Solution:
Ensure that the device's Link Protocol settings match that of the channel's. If this error occurs frequently, contact
Technical Support.
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