EQQTT15I EQQTT19W
EQQTT15I THE TCP/IP COMMUNICATION TASK HAS BEEN UNABLE TO ESTABLISH A CONNECTION TO THE
TCP/IP ADDRESS SPACE FOR THE LAST 200 SECONDS
Explanation: The TCP/IP communication task is attempting to establish a connection to the TCP/IP started task after
a restart. Attempts are made every 20th second. The message is issued every 10th attempt.
System action: The TCP/IP communication task processing continues.
User response: None.
System programmer response: Make sure that the TCP/IP address space is started.
EQQTT16E THE TA TASK RECEIVED INVALID IDENTIFICATION DATA FROM DESTINATION:
LU
. VALIDATION
RETURN CODE IS
RC
Explanation: The initial data received from a TCP/IP-connected Tracker Agent is not valid.
System action: The TA task will free all resources allocated to this session and close the session.
System programmer response: Verify that the correct Tracker Agent program has been started on the remote
destination and that the program is at a supported maintenance level. Also check that the GMT settings are
synchronized for the controller and the Tracker Agent. After making corrections, restart the partner program.
EQQTT17E TCP KEYWORD VALUE,

VAL1

, IS TOO LONG (OR MISSING)
Explanation: A workstation destination name specified as a value of the TCP keyword of the ROUTOPTS statement
is incorrect. The destination name is required and must not be greater than eight characters.
System action: Processing of the TCP keyword continues. Message EQQTT18E will be issued when all
destinations have been processed.
System programmer response: Either remove or correct the invalid destination and restart the TME 10 OPC
system.
EQQTT18E AT LEAST ONE TCP DESTINATION IS INCORRECTLY DEFINED
Explanation: The TCP keyword of the ROUTOPTS statement contains one or more incorrectly defined TCP
destinations.
System action: Processing of the current ROUTOPTS statement terminates with a nonzero return code. This
causes TME 10 OPC initialization to fail.
System programmer response: Review earlier error messages to determine the incorrectly defined destination.
Either remove or correct the invalid destination and restart the TME 10 OPC system.
EQQTT19W NO ACTIVITY WITHIN THE TIME-OUT INTERVAL.
DEST
SESSION CLOSED
Explanation: The TCP/IP-connected Tracker Agent defined as TCP destination

DEST

has not responded to a submit
request from the controller within the defined time-out interval. The TCPTIMEOUT keyword of the ROUTOPTS
statement defines the time-out interval.
System action: The session is terminated. Workstations that reference the destination are set to Offline status.
System programmer response: Check that the TCP/IP-connected Tracker Agent or the machine where it runs have
not terminated abnormally. Restart the system or the Tracker Agent. If the network is heavily loaded and the Tracker
Agent runs on a remote node with poor end-to-end response, increase the TCPTIMEOUT value to ensure that active
sessions are not inadvertently closed.
274 TME 10 OPC Messages and Codes