
IP 266 STEP 5 Programming
The edge flag for programming the TOGGLE bit is also required (FB 25/FB 26).
FB 21 - NAME:START
START
Job in progress?
no
yes
Evaluate auxiliary
and edge flags
Load bit 0 = 1
(QB 65) into FY 6
Edge flag = 0?
yes
no
Programming the auxiliary and edge flags for the
START function
Job in progress abort
AN I 66.7
BEC
Programming the edge and auxiliary flags
A I 3.1 START KEY
AN F 4.0
= F 4.1 EDGE FLAG
A I 3.1 START KEY
= F 4.0
Edge flag not yet set abort
AN F 4.1
BEC
Load Start command
L KB 1 START COMMAND
TFY6
BE
END
EWA 4NEB 812 6057-02
9-27
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