Experimental Physics and
Industrial Control System

[email protected] (William Lupton) · Fri, 14 Aug 1998 09:57:22 -1000

Geoff Savage wrote:
>Is it possible to increase the scan rate to greater than 10 Hz (.1 second)?

You can edit the file menuScan.dbd (and run dbExpand or however you manage
.dbd files at your site). For example, ours looks like this:

menu(menuScan) {
	choice(menuScanPassive,"Passive")
	choice(menuScanEvent,"Event")
	choice(menuScanI_O_Intr,"I/O Intr")
	choice(menuScan300_second,"300 second")
	choice(menuScan10_second,"10 second")
	choice(menuScan5_second,"5 second")
	choice(menuScan2_second,"2 second")
	choice(menuScan1_second,"1 second")
	choice(menuScan_5_second,".5 second")
	choice(menuScan_2_second,".2 second")
	choice(menuScan_1_second,".1 second")
	choice(menuScan_050_second,".050 second")
	choice(menuScan_025_second,".025 second")
	choice(menuScan_020_second,".020 second")
	choice(menuScan_010_second,".010 second")
}

Be aware that you mustn't fiddle with the first three entries, also that
the periodic entries should be in decreasing period order. This is because
the scan tasks become of higher priority as you go from top to bottom of
the list.

William

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System