Pepper-computer Modular Computers RS485 Bedienungsanleitung PDF herunterladen (Seite 235)

100

101

SMART I/O User’s Manual

Chapter 5 Analog Modules

5.3.8.13 SMADCGetGain

Syntax

error_code SMADCGetGain(u_int8 PortNr, u_int8 channel,

u_int8 *pBuffer);

Description

This function checks if an SM-THERM board is fitted on the specified port

and if the channel is valid. It gets the gain amplifier setting of the ADC and

stores the value in a user defined buffer where the user has to take care that

the buffer is large enough to store the data.

Input

u_int8 PortNr

Port number to fetch the gain setting

(from 0 to 10)

u_int8 channel

Number of specified channel (0 to 3)

u_int8 *pBuffer

Pointer to an user defined buffer

Output

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

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

Technical Manual Error Codes Section).

Example

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

1 2 ... 230 231 232 233 234 235 236 237 238 239 240 ... 319 320

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