Omron CS1W-SCU21 Operation Manual page 410

3Z4L Laser Micrometer Protocol
Sequence Communications sequence
No.
437 (01B5) Continuous measurement start
(interrupt) (4000-series)
438 (01B6) Measurement termination
(4000-series)
439 (01B7) Data request (4000-series)
440 (01B8) Forced positive zero
(4000-series)
441 (01B9) Forced negative zero
(4000-series)
442 (01BA) Forced zero release
(4000-series)
443 (01BB) 3Z4L initialize (4000-series)
444 (01BC) General-purpose command 1
445 (01BD) General-purpose command 2
446 (01BE) High calibration set
447 (01BF) Low calibration set
*1 Depends on the measurement contents.
Note 1. Sequences with interrupt notification are not supported by the CS1W-SCU21 and CJ1W-SCU41 Se-
rial Communications Units. A protocol syntax error will occur if an attempt is made to execute either
sequence with a Serial Communications Unit.
Do not set an EM bank as the receive storage word for interrupt notification. A protocol syntax error
will occur if an EM banks is set.
2. Ladder Interface Settings
YES: User settings are required for the 3rd and 4th operands of PMCR(260).
NO: Send word allocation:
Receive word allocation:
3. The hexadecimal equivalents of sequences numbers are given in parentheses.
name
Starts a continuous measurement.
The interrupt notification method is
used for receive data.
Terminates continuous measurement.
Requests measurement data in the
idle measurement status or the latch
data generated by the measurement
command.
Sets the forced zero direction to posi-
tive (+).
Sets the forced zero direction to neg-
ative (–).
Releases the forced zero direction.
Clears the 3Z4L, sets the mm unit,
and clears the memory unit settings.
Used to send data of a specified data
length, and receive only OK as the
receive data.
Used to send data of a specified data
length, and receive data other than
OK.
Sets the Laser Micrometer's high cali-
bration.
Sets the Laser Micrometer's low cali-
bration.
Set the constant 0000 for the 3rd operand (S).
Set the constant 0000 for the 4th operand (D).
Function
Send word
Appendix K
Ladder interface
Receive
allocation word allo-
cation
No Yes
No *1
No
No Yes
No No
No No
No No
Yes No
Yes No
Yes Yes
Yes No
Yes No
Notes
See
Note 2
391