ACC Error Guide

ZCOM Status Codes
Meanings of the Status Codes
Chapter 3 61
Meanings of the Status Codes
The ZCOM status codes are divided into three groups, depending on the
associated request code. Within each group, not all status codes apply to
all request codes. The groups are:
Terminal input, output control, and unsolicited errors
Request codes: 1, 2, 3 and 5
Terminal configuration and state control
Request codes: 6, 7, 8, 9, 10
Port configuration
Request code: 11
It it only possible to report one status per status code. When a reporting
module detects multiple status conditions, it reports the most important
status only.
When a protocol module reports a status condition that it interprets as
an error, it is assumed that the messaging operation has been retried if
appropriate, and it is not possible to recover from the error condition.
The request codes associated with each error are given as a guide only. A
particular status may be reported for another request code within the
group, however the status code would have a different meaning in a
different group.
For status codes within request code 5 (unsolicited status report) bit 7
will be set to indicate the UP/DOWN state of the terminal after the event
which caused the status report. Bit 7 will be set if the terminal state was
DOWN, and it will be clear if the terminal state was UP. An unsolicited
status report of zero (UP, no error detected) is used to indicate the
terminal has just come UP after being DOWN.