4-12
1.
TNU functions
4. TNU functions
TNU
1-6
Data readout function
◦
About the data readout function
The data readout function is a function for displaying the TNU / driver controller parameters or
driver controller program data on the PLC.
Entering the parameter readout command (0x24) or the program readout command (0x1F) into
the PLC and turning the command transmit switch ON results in the commanded data being
displayed on the PLC.
The parameter readout function displays the parameter data from RX30 to RX4F.
The data that can be read using the program readout function depends on the DVC mode.
[Readable data for each DVC mode]
Simple DVC mode
: Position
Half DVC mode :
Position, positioning completion width, speed, acceleration and pressing current limit
Full DVC mode :
Position, positioning completion width, speed, P area A, P area B, acceleration,
deceleration, pressing current limit, load current threshold value
*1 When command transmission switch is ON: turn on for 20ms or more.
*2 Refer to the RWr section of the CC-Link Communication Specifications for details about program data readout locations.
◦
Time chart
X102E(CMD_READY)
X102D(CMD_SEND_END)
Y100E(CMD_SEND)
X102C(CMD_ERROR)
Program No.(A)
X1020~1027(CMD_No.)
X1030~103F(Program_No.)
X1040~105F(Position)
Y1020~1027(CMD_No.)
Y1028~102B(CMD_No.)
Y1030~103F(Program_No.)
Communication
(TNU -> Dri-Com)
Communication
(Dri-Com -> TNU)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Command No.(A)
Program No.(A)
Axis No.(A)
Command No.(A)
(1)
(2)
(3)
(4)
Position data
Output
Input
No.
Input
Output
Status
Remarks
(1)
Command No. (0x1F)
Axis No.
Program No.
-
-
Program
readout
is only enabled when
TNU
is in PC mode
(2)
Command
transmission switch
ON
Command ready OFF
Program No.
-
(3)
-
Command reply
complete ON
Positioning data
*
1
-
(4)
Command
transmission switch
OFF
Command ready ON
Command reply
complete OFF
-
*
1
This time chart shows the result of program readout when in simple DVC mode.
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