Pepper Computer RS232, RS485 user manual SMDOUT1Get Syntax

Chapter 4 Digital Modules SMART I/O User’s Manual

4.2.8.4 SMDOUT1Get

Syntax

error_code SMDOUT1Get(u_int8 PortNr, u_int8 *buffer);

Description

This function fetches the output status of the port PortNr and writes it to the memory location pointed to by buffer. This buffer shows the status of all 8 outputs with bit 0 representing output 0 of the module.

Input

u_int8 PortNr u_int8 *buffer

Output

error_code

Example

SM-Port number to fetch data Pointer to a buffer where data is to be

stored.4

SUCCESS

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

RetVal = SMDOUT1Get(0, buffer);

Buffer Explanation:

D7 D0

Ch.7 Ch.6 Ch.5 Ch.4 Ch.3 Ch.2 Ch.1 Ch.0

Bit Value : 0 = Output is ON 1 = Output is OFF

March 12, 1996 ©1996 PEP Modular Computers GmbH Page 4 - 27