Pepper Computer Modular Computers RS232 User Manual

SMART I/O User’s Manual

March 12, 1996

©1996 PEP Modular Computers GmbH

Page 4 - 42

Chapter 4 Digital Modules

error_code SMREL1GetRly(u_int8 PortNr,

   u_int8 *buffer);

This function gets the input of the port PortNr and writes it to the buffer.

Bits 0-5 of the buffer reflect the Relay setting:

0 = relay closed

1 = relay open

Bits 6 and 7 are cleared.

u_int8 PortNr

SM-Port number to get data

u_int8 *buffer

Pointer to Buffer where data is written

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).

RetVal = SMREL1GetRly(0, buffer);