Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 207)

Remote Error Codes Received from the
1773-KA Module
Appendix B
BĆ15
Error
Code
Meaning
It indicates that either a very heavy traffic load is being
presented to the remote station, or that the dynamic memory of
the remote station is corrupted. If the problem clears up after
cycling power and does not recur, the cause may be RAM or
CPU failures triggered by heat or noise. If the problem recurs
repeatedly the probable cause is too many messages.
If the remote station has a 1773–KA module, the remote error codes will
have the meanings listed in the table below:
Error
Code Meaning
81 Illegal command. This error is sent from the 1773-KA if the
command message was incorrect in any of the following:
command code, subcommand code, and size of the command or
the requested reply size. This error results in the setting of the
remote error bit for the associated rung.
82 Controller is already allocated to a RS-232-C device or to a
PLC-4 Microtrol Programmer orExtended PLC-4 Microtrol
function is in progress
83 Some condition exists with a controller on the loop: Either the
cable between the 1773-KA module and a controller is
unplugged or the addressed controller is not on the loop. Either
results in setting the remote error bit for the associated rung.
84 Execution of a message at the 1773-KA module was aborted
because of a hard communication error on the cable between the
module and a controller on the loop. This error results in the
setting of the remote error bit for the associated rung.
One of the following may be true:
Packet lost on ring or
Two or more controllers on the loop have the same ID number
PLC-4 Microtrol must be allocated*
Undefined function*
Function not available this mode*
Controller number is invalid*
Invalid Parameters
Remote Error Codes Received
from the 1773-KA Module