BECKHOFF DK9222-0213-0063 - Manual (Page 4)

XFC
Oversampling
Application Note DK9222-0213-0063
you can now focus on a suitable hardware setup to use in conjunction with the TwinCAT PLC sample code. The setup includes
an external SMPTE timecode master and an EL3702 EtherCAT terminal.
TwinCAT Sample Program
The file TwinCAT sample.zip contains a program sample to extract time information out of a SMPTE frame. It was programmed
for the following hardware setup:
– EL3702 | 2-channel analog input terminal ±10 V with oversampling
– EK1100 | EtherCAT Coupler
– CX5010 | Embedded PC series with Intel
® Atom™ processor; or any Beckhoff IPC with a higher performance processor,
see chapter Limitations
– Video Binloop | External SMTPE device from Alcorn McBride Inc.
EL3702
1 | Input1+
2 | Input1-
3 | GND
SMPTE output
9 | SMPTEOUT+
8 | SMPTEOUT-
5 | GND
CX5010
EK1100
EL3702 SMPTE output
(D-sub 9-pin, female)
Video Binloop
(Alcorn McBride Inc.)
1
2
3
9
8
5
Fig. 5 Hardware setup and wiring to connect the timecode master to the EL3702
The SMPTE connector provides both an input and output for the SMPTE interface of the Binloop. The balanced input is 600 ohm
transformer-isolated and will accept levels between 1…5 V
PP
. The balanced output level defaults to 0 dBV into 150 ohms, but
can be adjusted between 0…4 dBV using the front-panel menu of the Binloop.
New Automation Technology BECKHOFF 4
For application notes see disclaimer on the last page