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<< Click to Display Table of Contents >> Data Logging - Rate |
  
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<< Click to Display Table of Contents >> Data Logging - Rate |
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By default data logging is running whenever SpecView is in Runtime Mode or when Online Features are enabled in Edit mode.
SpecView stores values of the selected variables at the Logging Rate.
The default rate is 60 seconds. The rate may be changed using:
| 1. | The Preferences box Logging tab. |
| 2. | The Button (or Strategy Controller) action Logging: On/Off |
The Preferences box is used to change the default rate. It is accessed from the File menu in either Runtime Mode or Edit Mode.
Logging can be turned off by:
| • | Unchecking the Enabled checkbox on the Preferences box |
| • | Setting the rate to 0 on the Preferences box |
| • | Using the Button (or Strategy Controller) action Logging: On/Off |
Using a Button Attribute or Strategy Controller event to change the rate is a temporary change. The next time the Runtime Mode is entered the rate will return to that specified in the Preferences box.
The current value for the logging rate is stored in the SpecView Variable LogRate.
The LogRate variable's initial value when going online will be the value set from Preferences - Logging
The LogRate variable is Read-Only and cannot be changed during Runtime mode other than by using the action: Logging: On/Off
NOTE: Use caution when adjusting the rate. Disk space is not expensive. If you forget to change the value back then you may have logging at the wrong rate (or turned off) without realizing it.
It is recommended that:
| • | For continuous processes (for example, monitoring storage freezer temperatures) - leave the logging rate the same throughout. |
| • | For batch processes that have a long duration between batches - turn off or decrease the logging rate between batches using the Strategy Controller. |
| • | For batch processes that have a short duration between batches - leave the logging rate the same throughout. |