Envoy ACP/XF Application Programming Manual
File-System Errors
EnvoyACP/XF Application Programming Manual–132179
A-4
Your application may also receive Guardian file-system errors in the following ranges. 
For details, see the Guardian Procedure Errors and Messages Manual.
170 NRM WRITE request for 
multipoint line had invalid 
station entry number, or 
station entry number 
different from currently 
active output entry number.
Supply valid number in MCW.
171 NRM
Primary
No response to poll, 
command, or WRITE.
Retry or perform higher-level 
recovery; the specific action is device 
dependent.
NRM
Secondary
Not being polled. Place station in LDS.
172 NRM Improper response to poll or 
command.
Same as 171.
173 WRITE request had invalid 
MCW or associated frame 
was retransmitted configured 
number of times without 
being accepted by the remote 
station.
Supply a valid MCW.
175 all WRITE procedure aborted 
due to receipt of FRMR. Or, 
READ aborted because of 
invalid control field.
Perform a higher-level recovery 
(usually involves a reset).
176 NRM Limited poll expired. Post another READ to continue 
polling or take other action as 
desired.
177 all Text overrun (data exceeds 
read count).
read-count was too small; 
read-count should always equal 
maximum frame size.
178 NRM Missing address list. Checking coding of DEFINELIST 
call.
179 all  CONTROL request is 
preempted by another 
CONTROL call.
Check program and recode; 
operation could not be performed 
because a CONTROL request was 
pending.
10-30 Coding or access problem
Table A-1. Summary of Errors (page 4 of 4)
File-
System
Error
Relevant
Protocol Description Recovery










