Position Latch Signal Input Interface - Delta Electronics PCI-M324 User Manual

PCI-M324 User Guide

3.1.5 Position latch signal input interface

PCI-M324 provides the position latch function as shown in Figure 3.1.5.1. In this example,
when the measuring probe touches the workpiece surface, it triggers the DI signal to execute
the position latch function, which records the position counter value in the latch counter.
Then, by reading the latch counter value, you can see the position value when triggered.
This card is designed with four sets of latch triggering source for selection. For details,
please refer to Figure 3.1.5.2.
DI
24V_GND
EZ+
EZ-
ORG
24V_GND
MEL
24V_GND
Axis DI, ORG, MEL input interfaces: please refer to Section 3.1.1 for the mechanical DI/O
interface DI, ORG, and MEL signals description.
EZ+ and EZ- input interfaces: please refer to Section 3.1.3 for the servo drive I/O interface pulse
input description.
November, 2017
Workpiece
Figure 3.1.5.1 Position latch function example
Select latch source
Figure 3.1.5.2 Position latch triggers source diagram
Signal Connection Interface
Measurement
Command
Feedback
Position counter
Latch
Get latch data
Set latch logic
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