Honeywell VRX180 Manuale Utente

Trend Data 2, Trend Data 3 and Trend Data 4 use the same prompts as in Table 4-72.   

 

Alarm data storage consists of a complete log of alarms, including time of occurrence, time of clearing, 
value of the alarm parameter, the alarm sense (high, low, etc.) and the batch identification number, if 
present.  The alarm prompts are: STORAGE MODE, ROLLOVER, ALARM SAMPLES, EXTERNAL 
ENABLE, SELECT FILENAME.  See Table 4-72 for descriptions. 

The number of samples which can be stored in a file (ALARM SAMPLES) can be up to  
1600. Depending on your selections, data collection will begin when the first alarm occurs, or when the 
first alarm occurs after a batch start. 

 

Event storage consists of a complete log of events including the event title, time of occurrence, the 
status or value after the change, and the batch identification number, if present.  When event storage is 
running, loop and instrument mode events are always stored; discrete input and output events are 
stored only if first enabled under those items’ program menus (see Sections 4.10 and 4.11). 

Event title 

Event status/value 

Setpoint choice 

SP1, SP2 

Control action 

Forward, Reverse 

Tuning Set 

Set 1, Set 2 

Instrument Mode 

Online, Program, Maint 

Control Mode 

Auto, Manual, RMan 

Set point 1 

SP1’s value 

Set point 2 

SP2’s value 

Control Output 

Loop’s output value 

Discrete Input 

On, Off 

Discrete Output 

On, Off 

 

Event storage setup is done with the following parameters: STORAGE MODE, ROLLOVER, EVENT 
SAMPLES, EXTERNAL ENABLE, SELECT FILENAME.  See Table 4-72 for parameter descriptions. 

The number of samples which can be stored in a file (EVENT SAMPLES) can be up to 1600. 

Depending on your selections, data collection will begin when the first event occurs, or when the first 
event occurs after a batch start. 

Barcode data is also stored in the event file.