Service manual

Appendix C 239
Error messages
Order of Alphabet
C. Error Messages
For a 24-bit input/output (I/O) shared port (port C and port D), you attempted to execute
input/output (I/O) of data in the direction opposite from the preset input/output direction.
The command was invalid. For example, if you use the CIN command to specify port C as
an input port and then use the OUTCIO <value> command to output data from port C, this
error is displayed.