CTI 2572-B / 2500C-2572-B Installation and Operation Manual 77
The 2572-B was unable to write the
requested memory.
If this occurs on a WRITE REMOTE
command block, it indicates that the
remote device could not write the data
into remote memory.
If this occurs on a READ REMOTE
command block, it indicates that the local
PLC could not write the result from the
remote device into local V memory
When this error occurs, it is usually due to an
invalid memory address specification in the
command block. Check the value for
Destination in Offset 5 and make corrections
if necessary.
When this error is returned in response to a
WRITE REMOTE command block, it is
possible that there is a problem in the
remote PLC which prevents the 2572-B from
writing V memory. Retry the command, if
the problem persists, check the remote
UNABLE TO ADD COMMAND TO ACTIVE
LIST
The module is unable to process this
If this occurs, the cause may be a module
firmware error. Contact CTI if the error
persists.
MINIMUM PRODUCTION INTERVAL OUT
OF RANGE
The value you specified for the minimum
production interval is less than 50 or more
Enter a valid value in the command block and
re-execute the command.
The target module server queue is full and
has rejected the additional command.
This may occur when commands arrive at the
2572 or 2572-B faster than they can be
processed through the PLC. More than likely
other clients are also sending to the target
module.
You should check the task codes per scan
setting of the PLC containing the target
module. For best performance, this should
be set to 8. Also, check the scan time to
ensure it is not arbitrarily set to a large value.
If the preceding steps do not correct the
problem you will need to reduce the total
transaction loading by slowing down the poll