Pepper-computer Modular Computers RS485 Bedienungsanleitung PDF herunterladen (Seite 103)

100

101

SMART I/O User’s Manual

Chapter 4 Digital Modules

4.1.8.4 SMDIN1Get

Syntax

error_code SMDIN1Get(u_int8 PortNr, u_int8 *buffer);

Description

This function fetches the status of ALL 8 input lines of the port PortNr and

writes it to the address pointed to by buffer with bit 0 of the buffer represent-

ing input 0 of the module.

Input

u_int8 PortNr

SM-Port number to fetch data

u_int8 *buffer

Pointer to Buffer where data is to be

stored

Output

error_code SUCCESS

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

Manual Error Codes Section).

Example

RetVal = SMDIN1Get(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 = No input or not connected

1 = Input Active

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 319 320

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