63
COMMUNICATION PROCEDURE (other than NCP20)
:
Flowchart
MLM26*RTZ002F
3
3.5
Flowchart
START
EXPORT SW : ON
INITIALIZE
OPEN
DTR = LOW
CHECK DSR
OFF
ON
DTR : ON
NO
YES
RS COM. ?
OUTPUT
SD COMMAND
INPUT DATA
‘EOT’ ?
NO
YES
DTR = OFF
DISPLAY DATA
END
DSR = ON
CHECK DSR
OUTPUT
RS COMMAND
OFF
ON
NO
YES
SD COM. ?
OUTPUT DATA
OUTPUT ‘EOT’
DTR : LOW
(1000)
(1100)
(1110)
(1130)
(1140)
(1150)
(1160)
(1180)
(1190)
(1210)
(1260)
(1290)
END
Initialization
Opening the RS-232C port
Disabling DTR that was enabled by 'OPEN'
The LM enables DTR (ON) and waits for the
start of communication.
The computer enables DTR (ON) and starts
communication.
Waiting for the RS comment to be sent
Transmission of the SD command
Reception of DATA from the LM
End of data at the reception of 'EOT'
DTR (OFF) is disabled by 'CLOSE'.
Displaying received DATA
The process is repeated by the program.
< LM-1800P/1800PD >
< Computer >
Explanation
Numbers indicated in the parentheses
are the line No. in the sample program.
Summary of Contents for LM-1800P
Page 1: ...INTERFACE MANUAL MLM26 RTZ002F LM 1800P LM 1800PD AUTO LENSMETER...
Page 6: ...2 OUTLINE OF COMMUNICATION Outline of Communication Function MLM26 RTZ002F...
Page 54: ...50 RS 232C Communication and USB Communication Example of Data Output MLM26 RTZ002F...
Page 70: ...66 COMMUNICATION PROCEDURE other than NCP20 Flowchart MLM26 RTZ002F...
