LSIS XBF-PN04B, Руководство пользователя

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Chapter 8 Program
8-85
(6) Read Latch Position Data (XPM_LRD)
(a) Condition for read latch position data
(b) Ready for each axis
(d) Position of the module
(e) Command axis
(f) Number of Latch data
(h) Completion state
(i) Error state
(c) Status of latch completion
(g) Latch position data
(a) Conditions to Read Latch Position Data
Conditions to implement the Read Latch Position Data command (XPM_LRD). Fox Axis 1, the Read Latch
Position Data command is always implement if %MX1048 is On after the axis is connected with the network.
(b) Axis ready state
If communication between the positioning module and the servo driver is normal, corresponding signal will
be on. In the example program, latch position data are read if %MX1048 (Read latch position data) is On
after the axis is connected with the module since Axis 1 preparation state (UX0.3.0) is used.
(c) Status of Latch Completion
It is the state of “Latch Completion” when an example program of “8.2.2 Read the Current Sate.” It is on
when latch is completed once external latch command signal of the relevant axis is inputted. In case of Axis
2, the Read Latch Position Data command of Axis 2 is implemented as soon as %MB4.6 (Latch Completion
state) is On.
(d) Address of Positioning Module
Before operation, you need to configure its position by numbers. In this example, Positioning Module is
installed at the 3 slot..
(e) Axis of operation
If you command each axis, need to set Axis of command execution. XBF-PN04(8)B can control maximum
4(8) axes. Axis of command execution1~4(8) means axis1~axis4(8).
(f) Number of latch position data
It is the device to save the axis’s number of latch data value read from the positioning module by using
XPM_LRD. This device can be used on sequence programs. For example, Axis1’s data number of latch
position is saved on %MW310.
(g) Latch position data
It is the device to save the axis’s latch data value read from the positioning module by using XPM_LRD.
This device can be used on sequence programs. For example, Axis 1’s data of latch position is saved
on %MD156 through %MD165.
(h) Status of Operation complete
If function block is completed without error, “1” will be outputted and maintain “1” until the next operation. If
error occurred, “0” will be outputted.
(i) Error state
This is the area that output error no. if there are errors in operation of function block.