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Appendix N
3Z4L Laser Micrometer Protocol
The 3Z4L Laser Micrometer Protocol is used to make various settings or control remotely the Laser Micrometer
connected to the Serial Communications Unit/Board via RS-232C cable.
Protocol Configuration
The configuration of the 3Z4L Laser Micrometer Protocol is shown below.
Sequence
No.
Communications sequence
name
Function Ladder interface Notes
Send word
allocation
Receive
word allo-
cation
400 (0190) 3Z4L clear Resets errors, data, analog output,
decision result and places the Laser
Micrometer into standby.
No No
401 (0191) Memory switch set Sets memory switches and the area
for the work position LED.
Ye s N o
402 (0192) mm unit set Sets the display unit to mm. No No
403 (0193) E unit set Sets the display unit to E. No No
404 (0194) Calibration set Calibrates the Laser Micrometer.
Calibration setting release.
Ye s N o
405 (0195) Calibration release Releases the calibration of the Laser
Micrometer.
No No
406 (0196) Program number set
(3000-series)
Switches the program number to a
specified number.
Ye s N o
407 (0197) Measurement condition set
(3000-series)
Sets measurement conditions. Yes No
408 (0198) Measurement condition
release (3000-series)
Releases measurement conditions
that have been set.
Ye s N o
409 (0199) Measurement condition list
request (3000-series)
Requests the measurement condi-
tions that have been set and other
settings.
No Yes
410 (019A) Single run measurement start
(3000-series)
When the sample measurement con-
dition is from 1 to 999, performs a sin-
gle run measurement and requests
the measurement results.
No Yes
411 (019B) Zero run measurement start
(3000-series)
If the sample measurement condition
is zero, starts a zero run measure-
ment.
No No
412 (019C) Continuous measurement start
(scan) (3000-series)
Starts a continuous measurement.
The scan notification method is used
for receive data.
No Yes
413 (019D) Continuous measurement start
(interrupt) (3000-series)
Starts a continuous measurement.
The interrupt notification method is
used for receive data.
Measurement termination (3000-
series)
No Yes 2
414 (019E) Measurement termination
(3000-series)
Terminates a continuous measure-
ment.
No
No
*1
415 (019F) Data request (3000-series) Requests display data in the idle
measurement status or the latch data
generated by the measurement com-
mand.
No Yes