CTI 2572-B / 2500C-2572-B Installation and Operation Manual 71
APPENDIX A. ERROR CODES
When the 2572-B encounters an error condition, it raises the CMD ERR bit and places an error word in Offset 0
of the Command Block. Following is a list of the errors in numerical order. For compatibility, these error codes
are identical to the CTI 2572 module error codes.
2572-B System Error Codes
The following error codes may be returned by the 2572-B application firmware. They are almost always the
result of invalid data in the command block or faulty PLC logic. All system error codes begin with hex 00.
INVALID COMMAND
The specified command number is invalid.
Correct the Command Number in the
Command Block.
You attempted to send a command to a
function that was already busy executing a
You can cause this error by using two
command slots to send commands to
the same connection number.
INVALID CONNECTION NUMBER
The specified a connection number is out of
See the documentation for the
particular command block. Correct
the connection number as required.
Connection number 19200 (system) was
specified in the command block but the
command is not a valid system command.
Change the logical port to a valid
connection number or the command
number to a valid system command.
An attempt was made to send a command to
a connection number that has not been
created.
Note: you could receive this error if you
incorrectly entered the connection number
in the memory transfer command block.
Check the following for the Create
Socket Command:
1) Make sure that the command
block contains the correct data,
2) Ensure that the Command Slot
points to the proper command block,
3) Ensure that the Command Trigger
has been set.
4) Check for reported errors for the
Create Connection Command.
Check the Memory Transfer
command block for an incorrect
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