JAI CV-M2 Manuale Utente

 

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6.4.5. Burst Trigger mode 
With the burst trigger function, a single trigger pulse can start a sequence with five previous set 
pre-selected programmable exposures. The five shutter times can be set with BSH1 through 

BSH5. (Exposure 1H through 1216H.) The exposure is LVAL synchronous. 
The sequence will start with the first exposure at the first LVAL pulse after the trigger leading 
edge, and the result is read out after the selected shutter time. During the read out of the 
previous frame, the next exposure starts. It will continue until exposure 5 is read out. 
This mode will operate with full and partial scanning.  
An EEN pulse will indicate the active accumulation time, and a FVAL pulse indicates that the 
resulting video sequence is read out. 
 

To use this mode:  
Set function: 

Trigger mode “Burst EPS”  

TR=4 

 

LVAL synchronous accumulation 

LS=0  

 

Burst Shutter 1 

BSH1=1 through 1216 

 

Burst Shutter 2 

BSH2=1 through 1216 

 

Burst Shutter 3 

BSH3=1 through 1216 

 

Burst Shutter 4 

BSH4=1 through 1216 

 

Burst Shutter 5 

BSH5=1 through 1216 

 

Scanning format 

SC=0 through SC=4 

 

Output select 

OS=0, OS=1 

 

Polarity and other functions 

Input: 

Ext. trigger to Camera Link or pin 10 on 12-pin connector.  

 

 

Important notes on using this mode.

 

•  The duration of the trigger should be >2LVAL to <3FVAL.  
•  A new trigger must not be applied before FVAL is low after frame 5. 
•  1LVAL = 47.9 µsec (single). 27.3 µsec (dual). 

 
 
For horizontal timing refer to 6.2.3 through 6.2.6. (Fig.17. through fig. 20.) 

For LVAL synchronous accumulation refer to 6.2.7. (Fig. 21.) 
 

LVAL

DVAL

DATA  OUT

SUB

SG

FVAL

EEN

Ext . Tr i g1

Exposur e

Per i od

Fr ame  1

Fr ame  2

Fr ame  3

Fr ame  4

Fr ame  5

Exp. 1

Exp. 2

Exp. 3

Exp. 4

Exp. 5

 

Fig. 27. Burst Trigger mode