Pepper Computer Modular Computers RS232 User Manual

SMART I/O User’s Manual

©1996 PEP Modular Computers GmbH

March 12, 1996

Page 5 - 83

Chapter 5  Analog Modules

error_code SMADCReadConverted(u_int8 PortNr, u_int8

channel, double *pBuffer);

This function reads the converted value of the last AD Conversion and stores

the value in degrees Celcius in a user defined buffer. The user has to take

care that the buffer is large enough to store the data.

u_int8 PortNr

Port number from which the input is read

(from 0 to 10)

u_int8 channel

Number of the channel to be read (0 to 3)

double *pBuffer

Pointer to a user defined buffer

error_code

SUCCESS

E_MNF

If wrong type of module or no module

is fitted on the selected port

E_PARAM

If wrong channel number is specified

E_NOTRDY

If no data is available at the moment or

the sensor is defect.

- wait or poll the input or check sensor

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

Technical Manual Error Codes Section).

RetVal = SMADCReadConverted(0, 1, &Buffer);