Time Out - TEC MA-1650-4 Series Programming Manual

TIME OUT

A Time-Out condition arises when the Master Terminal is making an in-line service operation, such as X/Z report
collection, DLL, etc. to the Satellite Terminals. The service timer is provided for servicing each of the Satellite
Terminals, thus on exceeding the time limit, a Time-Out condition will occur. In this case, a "RETRY",
"SUSPENDING", "INCOMPLETE ENDING", or "CANCEL" operation will be accepted.
ex. 1) In a system with a Master Terminal and 3 Satellite Terminals:
MASTER
TERMINAL
When a report collection is executed on the Master Terminal, a series of data collections from each terminal (S1
to S3) will be performed, but services for S1 and S2 will be skipped due to their "busy" conditions. Thereafter,
services will again be attempted to S1 and S2. As a limit of 30 seconds is provided for servicing each terminal,
the total service time in this case will be 30 sec. x 2 units = 60 sec. If data collection is successfully done from
S1 within this time limit, servicing S2 follows for the rest of the time, and on reaching the time limit, the Time-Out
condition arises, displaying on the Master Terminal the number of not-yet collected terminal(s) and the Store/
Register No. of the last serviced terminal. On this stage, the operator may only go on to "SUSPENDING" (to wait
for a while until S2 clears the "busy" condition), or to "RETRY" (to execute collection service to S2 again, expecting
that S2 has already cleared the "busy" condition), or to "INCOMPLETE ENDING" (to abandon the service to S2
and end with collection of the data of so-far collected terminals only), or to "CANCEL" operation. If "RETRY" is
operated, the service time now is 30 seconds because only one terminal remains uncollected.
ex. 2)
MASTER
TERMINAL
In this case, S2 is in a "No response" condition and S1 is in a "busy" condition. As only one terminal is responding
with some kind of status, a time out limit of 30 seconds is given (the "No response" status is not subject to the
service timer). However, if S2 turns into a "Power ON" condition, it will also be subject to the service timer.
S1
busy
S1
busy
- 35 -
S2
busy
S2
No response
(Power OFF)
EO3-11070
MA-1650-4 SERIES
S3
S3