Pepper Computer Modular Computers RS485 - Manual (Page 132)

SMART I/O User’s Manual
March 12, 1996 ©1996 PEP Modular Computers GmbH Page 4 - 44
Chapter 4 Digital Modules
4.3.8.7 SMREL1GetLed
Syntax
error_code SMREL1GetLed(u_int8 PortNr,
u_int8 *buffer);
Description
This function gets the status of the User LED on the port PortNr and writes
it to the buffer. If the LED is OFF then it returns 0, otherwise it returns 1.
This function of the LED is for the user to decide.
Input
u_int8 PortNr
SM-Port number to get data
u_int8 *buffer
Pointer to buffer where data is written
Output
error_code SUCCESS
E_BMODE
if the module is unknown
or standard OS-9 error code (refer to the OS-9
Technical Manual Error Codes Section).
Example
RetVal = SMREL1GetLed(0, buffer);