Return value, Portability, Example – Rockwell Automation 6182 SDK User Manual
Page 42: See also, Do_writeport, Syntax, Remarks
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RAC6182-Specific Extensions to the CE API
Publication 6182-UM002B-EN-P
Macro
Digital Output
MASK_DIAG_PIN_D
J10, pin D (no external access)
MASK_RELAY_PIN
J16 (Relay, contacts NC)
Return Value
TRUE if read operation was successful, else FALSE.
Portability
This function is specific to the RAC6182 hardware.
Example
#include
#include
int main(void)
{
UCHAR pucData;
char buffer[256];
if (do_ReadPort(&pucData))
printf(“Relay is %s\n”, (pucData &
MASK_RELAY_PIN) ? “open” : “closed”);
else printf(“Error reading digital outputs\n”);
return(0);
}
See Also
do_WritePort
do_WritePort
This function writes digital output. It is prototyped in
DiagnosticOutputAPI.h.
Syntax
#include
#include
BOOL do_WritePort(UCHAR ucMask, UCHAR ucData)
Remarks
ucMask is a bit mask that determines which outputs are modified. If the
mask bit for a given output is set to 1, that output will be modified to
reflect the corresponding bit in ucData; otherwise the output will not be
modified, regardless of the setting of the corresponding bit in ucData.