Activating Camera Operating Mode; Control Of The Switching Outputs; Optimizing Reading Performance - Leuze electronic DCR 248i Original Operating Instructions

8.6.3

Activating camera operating mode

The camera operating mode defines how the code reader starts a read process and decodes the codes if a
code is located in the read field (see chapter 4.1 "Camera operating modes").
The following options are available for activating the camera operating mode:
• webConfig tool (see chapter 9 "Commissioning – Leuze electronic webConfig tool")
CONFIGURATION > CONTROL > Camera operating mode
• Online command via the host interface (see chapter 11.1 "Online commands")
• Trigger signal via a digital trigger input
8.6.4

Control of the switching outputs

By using the switching inputs/outputs of the device, external event-controlled functions can be implemented
without assistance from the superior process control. Switching inputs/outputs SWO2, SWIO3 and SWIO4
on the PWR / SWIO connection must be configured as switching output for this purpose (see chapter 7.2
"PWR / SWIO – voltage supply / RS 232/RS 422 / switching inputs/outputs").
A switching output can, for example, be activated according to the following criteria:
• At the start/end of the reading gate
• Upon actuation by an external flash
• Depending on the read result:
• reference code comparison positive/negative
• read result valid/invalid
• Depending on the state of the device:
• Device ready/not ready
• Data transmission active/not active
• Active/standby
• Error/no error
Ä Connect the required switching outputs (see chapter 7 "Electrical connection").
Ä Configure the connected switching outputs according to your requirements.
ð First set the I/O mode to output
ð Then configure the switching behavior.
ð webConfig tool: Configuration > Control > Digital I/Os
8.6.5

Optimizing reading performance

Optimize the reading performance of the code reader using the following settings in the webConfig tool:
• Decoding table
Limiting of the code types being searched for and the number of digits
The adjustment options can be found in the webConfig tool: Configuration > Decoder > Code types
• Exposure time
A short exposure time enables high object speeds. Because the image brightness is thereby reduced, it
may be necessary to adjust the signal gain. Image noise increases as a result, however.
The adjustment options can be found in the webConfig tool: Configuration > Image acquisition
• Working range
Define a region of interest (ROI) to restrict coding to a single part of the image. If no region of interest is
defined, the complete image is defined as the region of interest.
The adjustment options can be found in the webConfig tool: Configuration > Decoder > Region of in-
terest
• Max. decoding time
Define the maximum decoding time to limit the execution time of the code search algorithm.
The adjustment options can be found in the webConfig tool: Configuration > Decoder > Properties
Leuze electronic
Starting up the device – Basic configuration
DCR 248i 47