Pepper-computer Modular Computers RS485 Manual do Utilizador descarregar pdf (Página 130)

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101

SMART I/O User’s Manual

March 12, 1996

Page 4 - 42

Chapter 4 Digital Modules

4.3.8.5 SMREL1GetRly

Syntax

error_code SMREL1GetRly(u_int8 PortNr,

u_int8 *buffer);

Description

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.

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 = SMREL1GetRly(0, buffer);

1 2 ... 125 126 127 128 129 130 131 132 133 134 135 ... 319 320

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