3 communication methods, Co mm u ni c a ting w ith t he fd -m h s er ie s, Reading settings or status – KEYENCE DL-CL1 User Manual
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3-3 Communication Methods
3-22
- CC-Link Compatible Network Unit DL-CL1 User’s Manual (FD-MH) -
Co
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3
Reading settings or status
(1) To see that the sensor amplifier is ready to send/receive commands, check that the "sensor ready"
parameter is set to 1.
(2) Write the data category and command number in the remote register.
Data category: In the high byte, write the data category of the parameter to be read, by referring
to
"Command Parameter List" (page 3-24).
Command number: For reading, write 00h in the low byte.
(3) Write the data number in the remote register.
Data number: Write the data number of the parameter to be read, referring to
Parameter List" (page 3-24).
ID number: For data category 00/10, write the ID number of the sensor amplifier, from which to read
the parameter, in the high byte.
(4) Execute the command by activating the "request for command."
(5) After the command execution completes, the "command completed" signal flips from 0 to 1.
(6) If an error occurs during command execution, the "command error" signal flips from 0 to 1. For
details of the error, check the values entered in the "command response".
(7) The read data is stored. Read the data if the command has completed successfully.
(8) Details of the command execution result are stored. For details of the result, see
(9) When the "request for command" is set to 0, the "command completed" parameter flips to 0. Also,
the "command error" parameter flips to 0 if an error has occurred.
PLC
Sensor amplifier
(2)
Data category/command number 0000h(Read command)
RWw00
(3)
Data number 0141h
RWw01
(1)
Sensor ready
RX50
(4)
Command request
RY51
(5)
Command finish
RX51
(6)
Command error
RX52
(7)
Data to read 1234h (Data that has been read)
RWr02
(8)
Command response 0000h (Successfully completed)
RWr01
Parameter 1234h
1
1
1
1
0
0
0
0
(9)
h
Command number (Read command=00h)
Data category
0 0
h
Data number of parameter to read
ID number of target sensor amplifier
n n
h
Data number of parameter to read
For data category
01/03/05
For data category
00/10