HP Advanced Communications Controllers (ACC) manual Read Completion Status Codes

Using HDLC/LAP-D Protocol

Status and Error Messages

1	IO_DSBL	Terminal disabled
		The terminal must be enabled before it will accept
		write or control write requests.
11	IO_LONG_MSG	Message too long
		Indicates one of the following errors:
		• The packet length in the header is not zero.
		• The control length in the header is not zero for a
		CW_STATS or CW_REVCODE request.
		• The control length in the header is greater than six
		for a CW_TIMERS request.
12	IO_SHRT_MSG	Message too short
		Indicates one of the following errors:
		• The request length is less than four (too short to
		contain the control write header).
		• The control length in the header is less than six for
		a CW_TIMERS request.
24	IO_BAD_CTL	Bad control function or format
		Indicates one of the following errors:

• The control length in the header does not equal the request length plus four.

• The control code in the header contains a value

other than CW_STATS, CW_REVCODE or CW_TIMERS.

• The value specified for a timer resolution in a CW_TIMERS request is outside of the range zero to four.

Read Completion Status Codes

All receive completion messages will have the status IO_OK. Received messages that have errors are not returned by the protocol.

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