Pepper-computer Modular Computers RS485 User Manual download pdf (Page 127)

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SMART I/O User’s ManualChapter 4 Digital Modules

Note

If the same SM-REL1 Module is to be accessed from different tasks, the

user must make sure that the actual output status is ensured by using for

example, semaphores within OS-9.

4.3.8.2 SMREL1Init

Syntax

error_code SMREL1Init(u_int8 PortNr);

Description

This function initializes the SM-REL1 Module on port PortNr by setting the

relays to OPEN, relay LED status to OFF and the external Vcc as input.

Input

u_int8 PortNr

SM-Port to initialize

(from 0 to 10)

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 = SMREL1Init(0);

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