Operator`s manual

Signametrics 44
Description Open all channel relays.
#include “SM4040.H”
int SCANOpenAllChannels(int iScan)
Remarks This function opens all channel relays. It does not effect the configuration of the Scanner.
It may be used following one of the scanning operations, to make sure all channels are
left open. Or it can be used any time when it is necessary to open all channels. It is not
operational while in Disabled or Universal configurations
Parameter Type/Description
iScan
int Identifies the Scanner. Scanners are numbered starting with zero.
Return Value The return value is one of the following constants.
Value Meaning
SCAN_OKAY
Operation successfully completed.
Negative Value
Error code
Example int active = SCANOpenAllChannels(0);
SCANOpenPCI
H/W access Command ; Polled Command 
Description Open the PCI bus for the specified Scanner. Not for user application.
int SCANOpenPCI(int nScan)
Remarks This function is limited for servicing the Scanner. It has no use in normal operation.. See
also SCANClosePCI() function.
Parameter Type/Description
nScan
int Identifies the Scanner number.
Return Value Integer error code.
Value Meaning
SCAN_OKAY
Operation successfully completed.
Negative Value
Error code
Example int status = SCANOpenPCI(0);
SCANReady
H/W access Command ; Polled Command 
Description Return the ready state of the Scanner following a polled operation.
#include “SM4040.H”
int SCANReady(int iScan)