Omega-vehicle-security OMP-MODL Manuel d'utilisateur télécharger pdf (Page 240)

11.. . APPENDIX A: MASTER ICON FILE REFERENCE

USING THE OMP-MODL11-78

TIMED COUNTER FUNCTION ICON

The Timed Counter is a software counter that can be used within a Net for accumulating

transitions over a fixed period of time( for example: counting pulses received per hour). In

concept, this icon performs a similar function as a hardware counter input such as the

GPDI in the Counter mode. However, the difference is that the Timed Counter is a

software version that can be used to count transitions received from other software icons

such as the Comparator.

The icon is has an Update Clock input that specifies the time period over which it is to

accumulate the transitions received on its Input. The Net shown below counts the

number of times per hour a temperature exceeds the 1400F threshold and stores this

OverTemps per hour value in memory.

INPUTS:

Data/Logic Signal: Logic (True/False) type.

Update Clock: Specifies the period of time over which the count is accumulated.

When an Update command is received, the current count is output and

counting resumes (optionally it can be reset to 0 before counting resumes)

Enable: Processing of icon is allowed when Enable pin is unconnected or

when connected and Enable signal is TRUE.

OUTPUTS:

Output Signal: Data type. The accumulated count is output.

ICON CONFIGURATION DIALOG BOX:

CONFIGURATION OPTIONS:

Icon Name:Specify the label for the icon. This name will show directly under the icon

within the Program Net.

When ______ Update pulse is received, output the _____ count total: HyperNet

completes this functional statement using the names of the Outputs from

the icons that are connected to this Counter icon’s Enable and Signal

Inputs.

Clear Counter on Output: If this check box is checked, after the accumulated count

total is passed to the Output, the total will be cleared and counting will

restart from 0. If the box is not checked, counting will be cumulative,

adding on to the current total.

1 2 ... 235 236 237 238 239 240 241 242 243 244 245 ... 296 297

Pas de commentaire

Omega-vehicle-security OMP-MODL Manuel d'utilisateur Page 240