CTI 2572-B / 2500C-2572-B Installation and Operation Manual 85
ERROR READING ETHERNET PORT
An error was encountered reading from the
If the problem persists, contact CTI.
ERROR WRITING ETHERNET PORT
An error was encountered writing to the
If the problem persists, contact CTI.
The time to process the requested command
exceeded the Command Timeout value.
Command processing has been halted.
Note that the timeout value may have been
explicitly set in the Command Block or the
default may have been used (timeout = 0).
In some circumstances, you may occasionally
get a timeout error, especially with heavy
network traffic or remote modem data links.
In these circumstances, your logic should
retry the command.
This error may indicate a bad connection
(faulty cable, loose connector, etc.). Check all
cabling carefully.
If the error persists and you have explicitly
set the timeout value, it is possible that you
have set the timeout value too small. Try
increasing the value or using the default
The protocol manager received a new
command prior to completing the previous
You can cause this error by using two
command slots to send concurrent
commands to the same connection number.
INVALID CLIENT CONNECTION NO.
The connection number used during Create
Socket was out of the valid range. The valid
range of connection numbers is 19221 –
Correct the command block data.
The 2572-B was unable to read the
requested V memory.
When this error occurs, it is usually due to an
invalid memory address specification in the
command block. Check the command block
and make corrections if necessary.
Check to ensure that the PLC you are
addressing is configured for the address you
The 2572-B was unable to write to the
Check the command block to ensure a valid V
memory address has been specified.
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