Nidek Medical LM-1800P, Инструкция по интерфейсу

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58
COMMUNICATION PROCEDURE (other than NCP20)
:
Actual Communications
MLM26*RTZ002F
3.3.3 The computer controls all the operations of the LM
Procedure for the computer to control the entire process: Measurement
→
Storage of measurement
data
→
Transmission of measurement data:
Note)If the computer sends “RD command” without waiting for the completion of measurement in 11,
the LM does not accept “RD command”.
1 LM Place a lens on the nosepiece of the LM to put the LM into the measuring state.
2
←
COM The computer enables DTR (ON) to let the LM know that it is starting communication.
3 LM →
When the LM confirms that DSR (=DTR of the computer) is enabled (ON), it enables
DTR (ON) and waits for “Command” from the computer.
4 ← COM
When the computer confirms that DSR (=DTR of the LM) is enabled (ON), it sends “RD
command” to request the LM to “save measurement data”.
5 LM ← When the LM receives “RD command”, it saves the measurement data.
6
←
COM
The computer sends “SD command” to request the LM to send “measurement data” after
waiting for about 0.1 second until the LM saves the measurement data.
7 LM →
After receiving “SD command”, the LM sends “measurement data”. After the
transmission and confirmation that DSR has been disabled (OFF), the LM disables DTR
(OFF).
8 → COM
The computer receives “measurement data”. After receiving “EOT” at the end of the
character string, the computer should disable DTR (OFF).
9 ← COM
If necessary, after the reception of “EOT”, the computer leaves DTR enabled (ON) and
sends “CL command”. After transmission, the computer disables DTR (OFF).
10 LM ← After receiving “CL command”, the LM clears the measurement data.
11
←
COM
To measure the next lens and receive the measurement data subsequently, the
computer should clear the former data by sending “CL command” in 9. and 10. After
placing the next lens on the nosepiece, the computer should wait for more than 0.5
second until the lens is measured (until the measurement data is displayed on the
screen after the former data is cleared) and repeat the process from 2.