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Start by
parameter is used to select the signal source for opening the reading gate.
•
A START BY
(signal for opening the reading gate)
When the reading gate is open, the sensor captures images at a frequency of 60 Hz
and evaluates them on the basis of codes. In an ideal scenario, at least one of the
codes on one of the images will be captured fully and recognized. No images are cap‐
tured while the reading gate is closed.
Signal sources for opening the reading gate:
•
SENSOR / INPUT 1
: A signal at digital input 1 (e.g., from a photoelectric switch) causes
the reading gate to open.
•
SENSOR / INPUT 2
: A signal at digital input 2 (e.g., from a photoelectric switch) causes
the reading gate to open.
•
EXTERNAL INPUT 1
: A signal at external digital input 1 (e.g., from a photoelectric
switch) causes the reading gate to open.
•
EXTERNAL INPUT 2
: A signal at external digital input 2 (e.g., from a photoelectric
switch) causes the reading gate to open.
•
SOPAS COMMAND
: A corresponding command for opening the reading gate is
expected from a device such as an external control (PLC). (A detailed list of the
commands can be obtained from SICK on request.)
•
AUTOCYCLE
: The reading gate opens and closes automatically in accordance with a
definable cycle (defined via the
parameters) (e.g., when the feed
speed is constant and the code position does not change, or for the purpose of
reading a code manually).
•
CAN
: The signal for opening and closing the reading gate is expected via the CAN
interface. In a group of devices that communicate with each other via the CAN net‐
work, the signal for opening the reading gate can be distributed. This involves an
appropriate trigger signal being received by one of the devices (usually the master)
and distributed to the remaining devices on the CAN network.
•
USER-DEFINED COMMAND
: For the purpose of opening the reading gate, you can freely
define a corresponding command that is generated by a device such as an exter‐
nal control (PLC) and transmitted to the sensor.
•
FREE-RUNNING
: The reading gate remains permanently open. This enables a code to
be read manually without any external trigger signal (e.g., from a photoelectric
switch). Any signals for opening/closing the reading gate are ignored. This means
that no specific time can be defined to specify when the data should be output
(the data transmission point). As a result, no signal can be output for the
NO READ
result, either. The data transmission point and the reading speed are dependent
on the extent to which the sensor's capacity is being utilized.
SOPAS PARAMETER OVERVIEW
8013778/YPV6/2016-01-14 | SICK
O N L I N E H E L P | Lector62x
113
Subject to change without notice