Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 161)

Error Reporting
Chapter 7
7Ć6
53 A reply message has been received for which the start bit is off. This could mean that
the user program turned off the start bit before the done bit came on or that the
automatic timeout is too short. This error often follows a 36 or 37 error. This error will
not cause the setting of an error bit or done bit.
54 RunĆtime command rung syntax check failed. This is probably the result of onĆline
editing. This error will cause the module to enter the error state. See Error 30.
55 Reply received while PROG light is on or during Program mode. This will possibly occur
if messages are being executed remotely at the time a runĆtime syntax check fault
occurs or if the keylock is turned to Program mode while messages are being executed.
This will not cause the setting of an error bit or done bit.
56 The sequence number in a reply message does not match the one being waited for.
This is to be expected if the start bit is turned on, a message is sent, then the start bit is
turned off and on again before the done bit is set. This error will not cause the setting of
an error bit or done bit.
57 A reply message has an incorrect size. This should not occur except during the debug
of a new highway computer program. This will not cause the setting of a done bit or
error bit.
81 This error is sent from the remote station if the command message was incorrect. This
includes the command code, subcommand code, and size of the command or the
requested reply size. This error results in a setting of the remote error bit for the
associated rung. This error code corresponds with STS Code 10.
82 Not used for 1771ĆKA. The meaning of this code has been assigned to verification
errors within the host PC. This error code corresponds with STS Code 20.
83 Some condition exists at the remote PC that requires manual intervention. This error
code corresponds with STS Code 30.
• The cable between the module and the PC is unplugged.
• The PC is faulted.
• Either results in setting the remote error bit for the associated rung.
84 Execution of a message at the remote station was aborted because of a hard
communication error on the cable or on backplane access between the module and the
PC. This error results in the setting of the remote error bit for the associated rung. This
error code corresponds with STS Code 40.
85 An attempt to access an illegal address in the remote PC has aborted message
execution. Illegal accesses may result from:
• Access outside the data table as defined at the remote station.
• Access outside a memory access window (protected commands only).
• Either results in setting the remote error bit for the associated rung. This error code
corresponds with STS Code 50.
86 Execution of a command is disabled at the remote station by a DIP switch option. This
error results in setting the remote error bit for the associated rung. This error code
corresponds with STS Code 60.
87 The remote PC is in PROGRAM or REMOTE PROGRAM mode, the remote KA is in
Download mode. This error results in setting the remote error bit for the associated
rung. This error code corresponds with STS Code 70.