Probe function

probe_f.jpg

When using EXT1 or EXT2 as probe, please set as following:

a）Set polarity of EXT 1 or EXT 2 as probe. Set the level polarity of the probes using 0x2007 / Pr0.07. Bit 0 for EXT1 signal, bit 1 for EXT2 signal

b）Probe function is set through 0x60B8 (Bit 0-7 is for probe 1, bit8-15 is for probe 2). Functions including activation trigger signal selection, triggering mode and triggering signal edge.

Please take note:

（i）Triggering mode: Single trigger, rising signal edge = valid; triggering mode:

Continuous trigger, rising and falling edge = valid

（ii） After activation, trigger signal selection, triggering signal edge settings, counter will

be reset and 0x60B9 status will change as well.

（iii）Probe signal level is shown in 60FD: EXT1 → bit 26, EXT2 → bit 27.

Relevant objects

probe_f1.jpg

Signal input of EXT1 and EXT2

EXT1：Pin1 and Pin5 of CN1 terminal
EXT2：Pin2 and Pin6 of CN1 terminal

Probe control Word 60B8h

probe_f2.jpg

probe_f3.jpg

Probe Status Word 60B9h

probe_f5.jpg

Latch Position Register

probe_f6.jpg

Latch Counter Register

probe_f_7.jpg

Probe mode

Set bit1/bit9 of 60B8h (Probe mode), 0 = Single trigger mode, 1 = Continuous trigger mode.

（1）Single trigger mode

Triggers only when the trigger signal is valid for the first time. In order to latch the position, users need to set bit0/bit8 of 60B8h to 0, then set bit0/bit8 of 60B8h to 1. The sequence diagram is as shown below:

probe_f_8.jpg

（2）Continuous trigger mode

The data saved from signal triggering will be saved until the next trigger signal. Enabling the probe again is not needed. Sequence diagram as shown below: