SMC Networks LECSN-T Series User Manual

18 - 103
18．EtherCAT COMMUNICATION
18.5.5 Touch probe
POINT
The touch probe function cannot be used in the indexer method.
The touch probe function that executes current position latch by sensor input can be used.
With this function, the position feedback of the rising edge and falling edge of TPR1 (touch probe 1) and
TPR2 (touch probe 2) or the position feedback of when the encoder zero point was passed through can be
stored into each object of 60BAh to 60BDh according to the conditions specified in Touch probe function
(60B8h).
The following shows the touch probe detection resolution. Enabling the high precision touch probe will disable
the encoder output pulses.
Touch probe1
Touch probe2
Input terminal
TPR1
TPR2
Encoder
resolutio
n
[Pr. PD37] = _ _ _ 0 (Selection of high-precision touch
probe is disabled)
55 μs
55 μs
[Pr. PD37] = _ _ _ 1 (Selection of high-precision touch
probe is enabled)
55 μs
Rising: 2 μs
Falling: 55 μs
(1) Related object
Index
Sub
Object
Name
Data
Typ
e
Acces
s
Default
Description
60B8h
VAR
Touch probe
function
U16
rw
Settings such as
enabling/disabling of the touch
probe function and trigger
conditions
60B9h
VAR
Touch probe
status
U16
ro
0
Status information of the touch
probe function
60BAh
VAR
Touch probe pos1
pos value
I32
ro
0
Shows the rising edge position of
TPR1 (touch probe 1). (Pos
units)
60BBh
VAR
Touch probe pos1
neg value
I32
ro
0
Shows the falling edge position
of TPR1 (touch probe 1). (Pos
units)
60BCh
VAR
Touch probe pos2
pos value
I32
ro
0
Shows the rising edge position of
TPR2 (touch probe 2). (Pos
units)
60BDh
VAR
Touch probe pos2
neg value
I32
ro
0
Shows the falling edge position
of TPR2 (touch probe 2). (Pos
units)

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English