Concurrent Signaling Systems - Advantech WISE-4050 Installation Manual

4.2.2. Concurrent signaling systems

After each completion of a cycle (good or bad), the "cycle completed" information is signaled over one
wire (the "cycle" signal line). If at the same moment nothing is signaled over the other wire (the "scrap"
signal line), the cycle is considered good. If the cycle was bad, the machine will signal that information
over the "scrap" signal line at the same time it signals the "cycle completed" information over the "cy-
cle" signal line. Bad cycles will therefore result in raising a "True" signal in both counter signal input
ports. The TIG daas system will recognize and correctly handle these situations by counting such cy-
cles as bad.
Input Port Meaning
DI2 CYCLE COM-
PLETED
DI3 BAD CYCLE INDI-
CATOR
Explanation
Signals the completion of a cycle.
On each "True" signal received, the GOOD PARTS COUNTER is in-
cremented if and only if the BAD CYCLE INDICATOR at this mo-
ment signals "False".
Signals that the completed cycle was "bad" and resulted in the pro-
duction of scrap.
On each "True" signal received, the BAD PARTS COUNTER is in-
cremented.
10