User's Manual

36 Chapter3
Using HDLC/LAP-D Protocol
Status and Error Messages
Write Completion Status Codes
The following statuses are returned in response to write requests.
Although these are a part of the standard status set, they are not used by
all protocols, and have a particular significance within this protocol
.
Control Write Completion Status Codes
The followingstatuses are returned in response to controlwrite requests.
Although these are a part of the standard status set, they are not used by
all protocols, and have a particular significance within this protocol
.
89 ST25REVCD Revision code upload
This message is sent in response to a CW_REVCODE
control write. The data buffer contains a single byte
which is the current protocol version. Currently, this is
11.
0 IO_OK No error detected
The request was successfully transmitted and
acknowledged by the remote side.
1 IO_DSBL Terminal disabled
The terminal must be enabled before it will accept write
or control write requests.
22 IO_LNK_DSC Link disconnected
An unrecoverable error occurred while this request was
waiting to be sent or to be acknowledged by the remote
side. The transmit request has been flushed.
23 IO_LNK_RST† Link reset
A recoverable error occurred while this request was
waiting to be acknowledged by the remote side. The
transmit request has been flushed.
0 IO_OK No error detected
The request was successfully transmitted and
acknowledged by the remote side.