Omron CQM1H-SCB41 Operation Manual page 336

3Z4L Laser Micrometer Protocol
Sequence Communications sequence
No.
442 Forced zero release (4000-
series)
443 3Z4L initialize (4000-series)
444 General-purpose command 1
445 General-purpose command 2
*1Depends on the measurement contents.
Note Ladder Interface Settings
YES: User settings are required for the 2nd and 3rd operands of PMCR.
NO: Send word allocation:
Receive word allocation: Set the constant 0000 for the 2rd operand (S).
Connections
The connections for the 3Z4L Laser Micrometer Protocol are shown below.
RS-232C Connection
CQM1H
Serial Communica-
tions Board
RS-232C Port
Serial Communications Board:
D-sub 9 pin (female)
Signal
name
FG
SD
RD
RS
CS
DR
ER
SG
name
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.
Set a dummy word address for the 3rd operand (D).
Pin No.
1
2
3
4
5
7
8
9
Function
Sensor
Controller
Controller: D-sub
25 pin (female)
Pin No.
1
2
3
4
5
6
7
20
Appendix K
Ladder interface
Send word Receive
allocation word
allocation
No No
Yes No
Yes No
Yes Yes
Signal cable
Signal
name
FG
TXD
RXD
RTS
CTS
DSR
SG
DTR
321