National Instruments GPIB-PC - Manual (Page 233)

Common Errors and Their Solutions Appendix B
GPIB-PC User Manual B-4 ©National Instruments Corp.
ESAC(5)
Error Condition: GPIB-PC not System Controller as required.
Solutions:
• Run IBCONF and make sure the board ( GPIB0 or GPIB1 ) is
configured to be System Controller.
• Issue a board IBRSC function call with a value of 1 to request
System Control.
EABO(6)
Error Condition: I/O operation aborted.
Solutions:
• Check that the device is powered on.
• Verify proper cable connections.
• Errors received from IBRD :
- Some devices will not send data unless they have received
data telling them what to send. This is caused by devices
having the capability of sending several types of data.
Issue an
IBWRT to set up the device, and then an IBRD to
receive the information.
- If you have not changed any of the default EOS or EOI
settings in
IBCONF , the reads will terminate when the
buffer is full or when EOI is set. If your device sends an
EOS terminating character such as a carriage return rather
than EOI, then use
IBCONF to change the device
characteristics. Remember to reboot after leaving IBCONF
if you made any changes.