Automatic control function programming manual ladder language

3.7.4.4 Watchdog %Qrc3B.0
Must be programmed in the %INI task. When this bit is set, it indicates that output %Qrc00.0 of this card is a watchdog
output.
Two watchdogs are allowed. The monitor scans all of variables %Qrc3B.0 and selects the first two watchdogs
programmed in increasing order (r,c).
If the watchdog is not initialised, the general I/O card configuration error bit %R97F.1 (DEFCONF) is set, the inputs
and outputs are no longer refreshed and the watchdog is reset.
3.7.4.5 NC Access Enable %Qrc3B.1
Enables or disables access to the output cards (by parameters E33xxx) and the input cards (by parameters E43xxx)
by the part programmes.
The variable equals 0 to inhibit access to the card by the part programme.
The variable equals 1 to enable access to the card by the part programme.
Variable %Qrc3B.1 is set to a default value of 0 by the monitor.
REMARK %Qrc3B.1 must be programmed in %INI. Depending on the state of variable
%W900.0, access to the outputs is enabled or inhibited by E33xxx.
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