Omega Vehicle Security OMB-NETSCAN 1500 Manuel d'utilisateur télécharger pdf (Page 223)

Appendix C Configuration Aspects for Programmers

NetScan User’s Manual C-27

As mentioned above more than one channel can be assigned to any given output bit. For example, if the

following statement were appended to the above example, then either channel 2 or channel 3 will set digital

output #2.

Alarms and Setpoints

PRINT#1,“A3,2X” ‘Assign alarm channel 3 to digital output 2

To disable a channel from an alarm, assign the channel to the null or “0" output:

PRINT#1,“A3,0X” ‘Disable channel 3 from digital output 2

Set Point Hysteresis

To avoid threshold transition problems, a hysteresis value can also be programmed. After the alarm set point is

exceeded, the signal must drop below the high set point, or above the low set point by the hysteresis value

before the alarm is reset. For example, assume a channel has alarm set points of 100 and -100, and a hysteresis

of 10. In this case the NetScan would remain in an alarm condition until the set point fell below 90 or rose

above -90 depending on which of the two set points triggered the alarm.

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Omega Vehicle Security OMB-NETSCAN 1500 Manuel d'utilisateur Page 223