Kepware Drivers > A Drivers > Alstom Redundant Ethernet > Error Descriptions > Device Specific Messages > Bad address in block [x to y] on device <device name>
Bad address in block [x to y] on device <device name>
Bad address in block [x to y] on device <device name>
Error Type:
Fatal addresses falling in this block.
 
Possible Cause:
This error is reported when the driver attempts to read a location in a PLC that does not exist. For example, in a PLC that only has holding registers 40001 to 41400, requesting address 41405 would generate this error. Once this error is generated, the driver will not request the specified block of data from the PLC again. Any other addresses being requested that are in this same block will also go invalid.
 
Solution:
The client application should be modified to ask for addresses within the range of the device.
 
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