Denso Power Net Terminal BHT-7500 Especificações Página 166

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Chapter 9. Event Polling and Error/Event Trapping
157
[ 2 ] I/O devices capable of being monitored by the event poll-
ing
Listed below are the I/O devices which the event polling can monitor.
Monitoring with the INP Function
Combining the INP function with the above functions enables more elaborate programming for
event polling.
For the
INP function, refer to Appendix D, "I/O Ports."
I/O Devices Monitor Means Events
Keyboard
INKEY$ function
Input of one character
from the keyboard
Bar code reader
EOF or LOC function
Presence/absence of bar
code data input or the
number of read characters
(bytes)
Receive buffer
EOF, LOC, or LOF function
Presence/absence of
receive data or the num-
ber of received charac-
ters (bytes)
Timer
TIMEA, TIMEB, or TIMEC function
Timer count-up
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