Pepper-computer Modular Computers RS485 Bedienungsanleitung PDF herunterladen (Seite 115)

100

101

SMART I/O User’s Manual

Chapter 4 Digital Modules

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

SM-Port number to fetch data

u_int8 *buffer

Pointer to a buffer where data is to be

stored.

Output

error_code SUCCESS

or standard OS-9 error code (refer to the OS-9

Technical Manual Error Codes Section).

Example

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

1 2 ... 110 111 112 113 114 115 116 117 118 119 120 ... 319 320

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