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ONLINE HELP SOPAS
Chapter
5
LECTOR®620
Parameters
8013778/Y269/2013-11-27
©
SICK AG · Germany · All rights reserved · Subject to change without notice
39
5.4.2.1.6
Reading gate length
If the T
IMER
/T
RACKING
signal source is selected under the
parameter, the
parameter is used to enter the duration for which the reading gate stays open.
The unit can be selected in the
parameter.
5.4.2.1.7
Or
You can use the
parameter to choose a second signal source/condition for closing the
reading gate.
For the reading gate to be closed, one of the signal sources/conditions must be met.
• N
OT
DEFINED
: No function for closing the reading gate defined
• T
RIGGER
SOURCE
: The reading gate is closed by the same signal source that opened it. (For
example, opening of reading gate as soon as an object breaks a light barrier and closing of
reading gate as soon as the object is no longer in front of the light barrier.)
• S
ENSOR
/ R
ESULT
1: A signal at digital input 1 (e.g. via a light barrier) closes the reading
gate.
• S
ENSOR
/ R
ESULT
2: A signal at digital input 2 (e.g. via a light barrier) closes the reading
gate.
• E
XTERNAL
I
NPUT
1: A signal at external digital input 1 (e.g. via a light barrier) closes the rea-
ding gate.
• E
XTERNAL
I
NPUT
2: A signal at external digital input 2 (e.g. via a light barrier) closes the rea-
ding gate.
• SOPAS C
OMMAND
: A standard command to close the reading gate is expected e.g. from an
external controller (PLC). (A detailed list of the command language is available from SICK
on request.)
• T
IMER
/T
RACKING
: The reading gate remains open for a defined time/distance (
).
• G
OOD
R
EAD
: The reading gate is closed as soon as the G
OOD
R
EAD
condition has been met
(e.g. the required number of codes was read). As a result, the reading gate is only open for
as long as necessary (direct notification).
• U
SER
DEFINED
COMMAND
: You can freely define a command for closing the reading gate,
which is e.g. generated by an external controller (PLC) and transmitted to the LECTOR
®
620.
• C
ONDITION
M
ATCH
1: The reading gate is closed as soon as the condition is met.
• C
ONDITION
M
ULT
C
ODES
1: The reading gate is closed as soon as the number of identified co-
des matches the required number.
• C
ONDITION
T
EACH
I
N
1: The reading gate is closed as soon as the
con-
dition is met.
• C
ONDITION
T
EACH
I
N
2: The reading gate is closed as soon as the
condition is met.