Operator`s manual

53 Signametrics
SCANTerminate
H/W access Command ; Polled Command 
Description Terminate Scanner’s operation, and removes it from PCI configuration.
#include “SM4040.H”
int SCANTerminate(int iScan)
Remarks This function opens all relays of the selected Scanner, then removes it from the PCI
structure. To use this Scanner again, it is necessary to either, exit the thread, or
reinitialize it. It is not necessary to use this function since exiting the thread will
automatically terminate the scanner. Following the termination operation, the scanner is
not accessible.
Parameter Type/Description
iScan
int Identifies the Scanner being addressed.
Return Value The return value is one of the following constants.
Value Meaning
SCAN_OKAY
Operation successfully completed.
Negative Value
Error code
Example status = SCANTerminate(0); // Terminate scanner #0
SCANTestChanIntegrity
H/W access Command ; Polled Command 
Description Test a channel relay for integrity.
#include “SM4040.H”
int SCANTestChanIntegrity(int iSca, int iChan)
Remarks This function tests a single channel relay. The procedure closes a single relay, waits for
tActuation, and then checks that both contacts are closed. Next it opens the relay, waits
for 1/2 of tActuation, and then checks if the relay is open. A bounce following contact
closure and opening is not verified. This test operation is fast, but it is very thorough. Use
the SCANTestChannelRelay and SCANTestConfigRelay operations for a more
comprehensive test. The test connector must be in place to perform this test. Following
the completion of this test, the scanner is left in the Disabled configuration.
Parameter Type/Description
iScan
int Identifies the Scanner being addressed.