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CHAPTER 6 RS-232C CONTROL
Sending and Receiving Data
This section explains the Command transmission from the PC to the controller for giving,
changing, or monitoring parameters or reading measurements.
AL1
LASER
O11
BRIGHT
O12
DARK
( )
NOT USE
AL2
O21
O22
( )
COM.
V1
I 1
GND
V2
I 2
GND
TM1
I 11
NOT USE
I 12
( )
TM2
I 21
I 22
HEAD 1
( )
HEAD 2
1. Send a Command from the PC to the controller.
2. When a Command is received, the controller returns a response and executes the
Command.
If no response is returned, the Command has not reached the controller.
During RS-232C control, the controller stops measuring twice each time a communication
•
session is held for communication with an external device.
Send/receive the Command when controller start-up is completed after turning on the
•
power supply. Note that sending Commands continuously during start-up may slow
start-up.
Data Transmission Format
The transmission format of Commands and data sent from the PC to the controller is
shown below. Only uppercase letters are used.
1. Read settings
Command Symbol
2. Change settings
Command Symbol
Setting Command Code
3. Set a number
Command Symbol
Setting Command Code
%
E
E #
Setting Command Code
%
E
E #
W
E
E #
%
W
Select Head: 1 to 3
R
C
R
BCC
Select Head: 1 to 3
C
R
BCC
Setting Code: 0 to F (Command-dependent)
Select Head: 1 to 3
. .
Setting Value: ±999.9999
Code + Number (Zero Suppress)
6-3
Note the transmission interval
may be limited, depending on
the command. See page 6-8.
BCC: See page 6-37
８
C
R
BCC
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