Time out – Toshiba TEC MA-1900 User Manual

Page 28

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E01 -11006

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, either a “RETRY”, “SUSPENDING”, “INCOMPLETE

ENDING", or “CANCEL” operation will be accepted.

ex.

1) In a system with a Master Terminal and 3 Satellite Terminals:

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 tor 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 SI 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 terminals)
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.

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.

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