Pepper Computer RS232, RS485 user manual SMDAC1PutV Syntax, RetVal = SMDAC1PutV0, 1, 0x0FFF

Chapter 5 Analog Modules SMART I/O User’s Manual

5.5.8.7 SMDAC1PutV

Syntax

error_code SMDAC1PutV(u_int8 PortNr, u_int8 Channel, int16 Value);

Description

This function sets the selected DAC channel to the chosen value. A gain and offset correction is performed with the use of the automatically selected conversion table depending whether a user-defined table has been specified or not. Hence, if a user-defined table exists then this will be used, otherwise the default factory set table will be used.

Input

u_int8 PortNr u_int8 Channel

int16 Value

Output

error_code

Example

SM-Port number to be accessed

Number of the DAC output channel to access (0-5)

Value to be written

SUCCESS	if module was not initialized
E_SEEK
E-BMODE	if the module is unknown

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

5

RetVal = SMDAC1PutV(0, 1, 0x0FFF);

			Value (16-bit HEX)
	Unipola	r			Bipolar
	Positive Full-Scale			$0FFF	Positive Full-Scale	$07FF
	+1LSB			$0001	+1LSB	$0001
	0			$0000	0	$0000
					-1LSB	$FFFF
					Negative Full-Scale	$F800
October 01, 1996	©1996 PEP Modular Computers GmbH						Page 5	- 119