KEYENCE SR-750 Series - Manual (Page 12)

12 E SR-750 UM
„ Bank prioritizing function
When the alternate setting order is set to "Begin with successful bank", the next
reading starts from the parameter bank of the most recent successful reading.
When codes with similar conditions are read in sequence, prioritizing according to
the last successful bank may result in a shorter reading processing time.
Operation of the bank prioritizing function when parameter banks 1 to 4 are
used
The reading order is changed to start reading from the parameter bank of the
previous successful reading.
Point The bank prioritizing function is effective only in Operation mode.
The reading order is reset to the default setting when one of the
following operations is performed:
• Stopping the power supply
• Entering the test mode
• Entering Setting mode or Test mode
• Changing the alternate setting
3-4
Test Mode
This section describes the test mode of the SR-750 Series.
SR-750 Series Test Mode
For more information about the TEST button operations of the SR-750 Series or
the multiple LED status display, refer to
"3-1 Using the SR-750 Series (Page
9)".
Reference
• It is also possible to perform the test mode by specifying a parameter
bank.
"8-2 Operation Commands (Page 71)"
• If no parameter banks have setting values, the test mode is
performed for the parameter bank 0 (bank for read quick setup
code).
Online and offline modes
„ Offline mode
Offline mode is useful for fine-tuning the installation position, distance or angle
during initial setup.
Data is continuously output as long as the test is active.
The test result data is output in real time.
Function Description
Reading rate test mode Offline Scans codes 10 times and measures the
reading rate according to the number of times
that the code was read correctly.
Offline This test mode checks the number of
successful decodes against the number of
decodes attempted while the trigger input is
turned ON.
Read time test mode Offline This test mode measures the amount of
decode time that it takes to read a code and
outputs the result every 10 decodings are
performed.
Offline This test mode measures the amount of time
that it takes to read a code and outputs the
result when the trigger input turns OFF.
Code position measurement
test mode Offline In this test mode, the level that indicates how
far the code shifts from the center of the field of
view is measured.
Reading
order
Parameter bank
No.
Reading
order
Parameter bank
No.
1 1 1 3
2 2 2 1
3 3 3 2
4 4 4 4
Reading
Success
Activate the test. Stop the test.
Testing
Test operations
Testing
„ Online mode
Online mode is useful for troubleshooting issues during run-time operation.
Online test mode can only be enabled through serial command input.
"8-2 Operation Commands (Page 71)"
To begin the test, turn the timing input on. To end the test and output results, turn
the timing input off.
Test Mode Measurement Status
The measurement status of the test mode can be checked on the multiple LED
indicator.
The multiple LED displays the following symbols during test mode.
Test Mode Details
This section describes the advanced details of each test mode.
Reading rate test mode
This test mode scans codes and measures the number of successful reads.
The offline mode scans 10 times and outputs the number of successful reads.
The offline test mode outputs the reading rate which is obtained from the number of
decodes against the number of decodes attempted while the trigger input is ON.
The parameter bank switches while scanning, just as when reading with the
alternate function. When reading is successful, the parameter bank used for
reading is fixed and the reading rate is calculated.
When a read error occurs, the test mode switches to another parameter bank and
continues the measurement.
Multiple LED status
Reading rate
(%)
Processing
time (ms)
Code position
measurement
OK/NG/
ERROR LED
5 bars lit
90 to 100 Up to 99 LEVEL5 Green
4 bars lit
70 to 80 100 to 199 LEVEL4 Green
3 bars lit
50 to 60 200 to 299 LEVEL3 Green
2 bars lit
30 to 40 300 to 399 LEVEL2 Green
1 bar lit
10 to 20 400 or more LEVEL1 Green
0 bars lit
Reading error Red
Test commands
Timing operation
Testing
Testing
Activate the test. Stop the test.
Timing ON Timing OFF