Operator`s manual

57 Signametrics
Example
SCANTestConfigRelay(0, BtoA); // test the BtoA relay
SCANTrigAutoScan
H/W access Command  Polled Command 
Description Set Scanner for Triggered Auto Scan operation.
#include “SMX4032.H”
int SCANTrigAutoScan(int iScan, int iPoints)
Remarks This is the externally triggered version of SCANAutoScan operation. Following
acceptance of this command, the Scanner enters a wait state, whereby it waits for a
trigger edge to start an Auto Scan operation. Trigger edge is whatever was previously
selected using the
SCANTriggerOutState. Being a polled operation, it requires
SCANReady to return TRUE as indication of completion. Do not issue new command
util SCANReady returns TRUE. An exception is the SCANAbort, which terminates this
operation. Keep in mind that the last channel selected is left closed. See SCANAutoScan
for details.
Parameter
Type/Description
iScan
int Identifies the Scanner being addressed.
iPoints
int Indicates the number of points in the scan.
Return Value The return value is one of the following constants.
Value
Meaning
SCAN_OKAY
Function succeeded.
Negative Value
Error code
Example SCANTriggerOutState(0,ENABLED, POSITIVE); //positive edge
CANTrigAutoScan(0, 20); // set off 20 point scan.
SCANTriggerInState
H/W access Command  Polled Command 
Description Set trigger input state.
#include “SMX4032.H”
#include “ScanUser.H”
int SCANTriggerInStete(int iScan, int iState, int iEdge)
Remarks This function sets the scanner’s trigger input state and active edge. Default is
DISABLED and POSITIVE. If iState is set to ENABLED, the trigger input line is
enabled. If iEdge is set to POSITIVE, Positive Edge will activate operations. See
definitions in ScanUser.H file.
Parameter
Type/Description
iScan
int Identifies the Scanner being addressed.