Microscan MS-890 User Manual page 189

Control Trigger (Optoelectric Control Mode)
Usage: Useful where different symbol types, sizes, and/or distances benefit from
pre-defined optical setups (focus, gain, and tracking) that can be accessed
'on the fly' according to the combination of input states.
Definition: When Optoelectric Control mode is set to Control Trigger, input 1, new
master pin, and the trigger input pins are de-activated and re-assigned as
control triggers. When activated, a read cycle will be triggered and—in
accordance with their respective states—selected from a database of up to
seven pre-defined optical settings of Focus, Gain, and Tracking. (See
Configuration Database
<K226,mode,# active database settings,latch on trigger,timer/switch
Serial Cmd:
value,control trigger 1 status,control trigger 2 status,control trigger 3 status,
database cycles>
Using Control Trigger
Set up your application's symbols by symbology type/size in the various positions and/or
code type/size at which they will likely appear.
Set up your sensors or other controls. For example, the three object sensors, 1, 2 and 3,
are connected to input 1, new master pin, and trigger input respectively. The bar-coded
packages on the left are numbered here according to their database index numbers. Package
# 7 will cross all three of the sensors and thus activate the settings for index # 7.
In this scenario only four index settings are possible. However, up to seven combinations
are possible with other input devices such as PLCs.
You can also enable/disable any combination controls by clicking on the Control Trigger
Status buttons on the bottom of the Control Trigger Map. The red buttons indicate active
states on the three control triggers. The combination of active/inactive triggers determines
the focus, gain, and tracking settings that will be applied during a read cycle. For example,
if only Control Trigger 1 is active, the focus, gain, and tracking values that appear in the
top row will be applied.
MS-890 Industrial Automation Scanner User Manual
on page 9-6)
Calibration
9-9