Mitsubishi MELSEC-Q EQ-V680D1 User Manual page 50

5. THINGS YOU NEED TO KNOW BEFORE PROGRAMMING
Address
CH1 CH2
Un\G42 Un\G4042
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(5) Speed level measurement (read/write)
Speed level measurement allows you to easily verify the ID tag movement speed
and the applicable number of bytes.
The test measures the number of times communication can be continuously
executed in response to the speed at which the tag passes through the antenna
communication area.
The measurement result is stored in the processing result monitor storage area
(Un\G42, Un\G4042). The measurement result can also be verified using the
amplifier operation indicator lamps.
Point
(1) Speed level measurement (write) is performed in a pseudo manner. Data are not
written to the ID tag. The speed level is measured using the contents set in
advance in buffer memory (Un\G8000 to Un\G8002) (Refer to Section 3.4.2(14) to
(16)).
1. Set the RUN/TEST mode switching method.
• When you want TEST mode to be started using the test switch only, set bit 0 of
intelligent function module switch 2 to "1".
• When you want to start TEST mode using the test mode execution request
(Y15), set bit 0 of intelligent function module switch 2 to "0".
2. Set TEST mode operation.
Set "00B0 " (read) or "00B1
H
area (Un\G8000). Set the test operation antenna number in the test operation
antenna specification area (Un\G8001), and the number of test operation bytes
in the number of processed points during testing specification area (Un\G8002).
3. Execute TEST mode.
The speed level is measured based on the buffer memory (Un\G8000 to
Un\G8002) setting conditions.
• When bit 0 of intelligent function module switch 2 is set to "1", start TEST mode
by switching the test switch to "TEST".
• When bit 0 of intelligent function module switch 2 is set to "0", start TEST mode
by the above method or by turning the test mode execution request (Y15) ON
in RUN mode.
4. Start speed level measurement.
The speed level is measured, and the measurement result is stored in the
processing result monitor storage area (Un\G42, Un\G4042).
The measurement result can also be verified using the amplifier operation
indicator lamps.
Table 5.5 Speed Level Measurement Result
During operation
When abnormal
" (write) in the test operation mode specification
H
Data Format
Read:
"B0" + "Measurement result"
Write:
"B1" + "Measurement result"
"E0" + "Error code"
Measurement Result / Error Code
01 to 99 [BCD] (times)
EE: When the measurement
result is 0
7C: Antenna error
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