CJ1W-NC214 Omron, CJ1W-NC214 Datasheet - Page 451
CJ1W-NC214
Manufacturer Part Number
CJ1W-NC214
Description
High Speed Pulse Train 2 Axes
Manufacturer
Omron
Datasheet
1.CJ1W-NC214.pdf
(601 pages)
Specifications of CJ1W-NC214
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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9-7 Present Position Latch Function
CJ Position Control Units OPERATION MANUAL (CJ1W-NC214/234/414/434)
Operating Procedures
1. Setting of the common parameter [Latch Object Axis Selection]
2. Setting of the axis parameter [Interrupt Signal Function Selection] under [Interrupt
3. Setting of the axis parameter [Interrupt Feeding Reference Position/ Latch Target
4. Turning ON the present position latch enabled
5. Starting the interrupt input
6. Read data
The present position latch function loads into the PCU the position data which is valid at the
time an external interrupt input is input.
You can select the command position or feedback position for the position data.
If you use the present position latch function, follow the procedure below to set the function:
Use [Latch Object Axis Selection] to set the axis whose present position you want
to latch upon interrupt input through the external signal connector.
Present position latch 1 target axis selection corresponds to the interrupt input for axis 1.
Similarly, present position latch 2 target axis selection, present position latch 3 target axis
selection and present position latch 4 target axis selection correspond to the interrupt inputs
for axes 2, 3 and 4, respectively.
You can specify a desired axis for each latch signal, but you cannot set 3 latch signals and
more for 1 axis.
Signal Function Selection]
For each axis, use [Interrupt Signal Function Selection] to select the use of an interrupt input
signal as a present position latch signal.
Position Selection] under interrupt feeding setting
Use [Interrupt Feeding Reference Position/Latch Target Position Selection] to select whether
to use the command position or feedback position for the position to be latched.
Turn ON the [Interrupt Input Mask Enable/Present Position Latch Enable] bit in the Direct
Operation Command Memory area.
Turning OFF the present position latch enabled prevents reception of interrupt input.
Load position data into the PCU the moment the interrupt input turns ON. When the present
position latch is executed, [Latch Completed] in the Axis Status Memory area will turn ON.
To read the latched position data, use an IORD instruction.
The data address is as follows:
For data read, refer to Chapter 8, Data Transfer.
Axis 1 latch data
Axis 2 latch data
Axis 3 latch data
Axis 4 latch data
Data name
Parameter type
1201 hex
1202 hex
1203 hex
1204 hex
0000 hex (rightmost word)
0001 hex (leftmost word)
0000 hex (rightmost word)
0001 hex (leftmost word)
0000 hex (rightmost word)
0001 hex (leftmost word)
0000 hex (rightmost word)
0001 hex (leftmost word)
9-7 Present Position Latch Function
Unit Address
9-26
9
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