Smadcenableread - PEP Modular Computers Modular Computers RS485 User Manual

Chapter 5 Analog Modules

5.2.8.14 SMADCEnableRead

Syntax
error_code SMADCEnableRead(u_int8 PortNr, u_int8
Description
This function checks if an SM-PT100 board is fitted on the specified port and
if the channel is valid. It forces the HW task to read raw values from the
enabled channels of the device one after the other. The HW task writes the
results to the data module. If the flag enable is TRUE (<>0), then cyclic
ADConversion is executed, else (enable=FALSE) and cyclic conversion is
disabled. The function invalidates RAW and Converted data within the data
module.
Input
u_int8 PortNr
u_int8 channel
BOOLEAN enable
Output
error_code
Example
RetVal = SMADCEnableRead(0, 1, FALSE);
March 12, 1996
channel, BOOLEAN enable);
Port number to enable the reading function
(from 0 to 10)
Number of specified channel (0 to 3)
Flag for enabling or disabling reading of the
specified channel
SUCCESS
If wrong type of module or no module
E_MNF
is fitted on the selected port
If wrong channel number is specified
E_PARAM
or standard OS-9 error code (refer to the OS-9
Technical Manual Error Codes Section).
©1996 PEP Modular Computers GmbH
SMART I/O User's Manual
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