Wavetronix Click 500 (programmable controller) (CLK-500) - Developer Guide - Manual (Page 147)

146 APPENDIX • CLICK 500 DEVELOPER GUIDE
ClickDioCheck
Retrieves the current state of the given digital input port. The digital inputs are multi-func-
tion inputs. To select the appropriate function, use DIP switch 1 and 2 on the side of the
device. Switch 1 is for input 1 and switch 2 is for input 2.
Position 1 - Low Level AC Input Designed for use with low voltage AC clamp-on trans-
ducer. Designed to turn on when driving 1 W load at 120 Volts RMS AC.
AC_ON == 1
AC_OFF == 0
Position 2 - Contact Closure Input
CONTACT_OPEN == 0
CONTACT_CLOSED == 1
Position 3 - DC Input, threshold @ 9.0 VDC
DC_ABOVE_THRESHOLD == 1 (> threshold)
DC_BELOW_THRESHOLD == 0
Position 4 - DC Input, threshold @ 11.9 VDC
DC_ABOVE_THRESHOLD == 1 (> threshold)
DC_BELOW_THRESHOLD == 0
Position 5 - DC Input, threshold @ 23.8 VDC
DC_ABOVE_THRESHOLD == 1 (> threshold)
DC_BELOW_THRESHOLD == 0
˽ LIBRARY – click500DigitalIO.LIB
˽ SYNTAX –
int ClickDioCheck( int digPortId );
˽ PARAMETER1 – The digital port to check (D1, D2).
˽ RETURN VALUE – The value of the port (0, 1).
˽ SEE ALSO – ClickDioSet