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Watlow EZwarePlus Programming User Manual

Page 83

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EZwarePlus Programming Manual

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Video In

The Video In Object is used to input and play video on the HMI from an external source. One of two video

input channels can be selected either in the program or dynamically using a PLC register. The composite

video inputs can be configured to accept NTSC or PAL video formats. A control function can be enabled

that allows the value in a PLC register to control the video input.

Control Word address

0 = Stop playing

1 = Input Video 1 and display onscreen.

2 = Input Video 2 and display onscreen.

3 = Input Video 1 but don’t display onscreen (available for capture

function).

4 = Input Video 2 but don’t display onscreen (available for capture

function).

Control Word address + 1

0 > 1 transition toggles Pause/Play (register resets to 0 after each

transition)

Recommended Format and Resolution

100% (1:1)

50% (1:2)

NTSC

720 x 480

360 x 240

PAL

720 x 576

360 x 288

A capture function allows capturing video images and storing them as *.jpg files on a USB flash drive or SD

card. The video capture is triggered by a PLC or local bit (OFF > ON) and can be configured to capture

video once per second for a period of time defined by the Record time. The time Before and time After

define the time period (up to 10 seconds each) before and after the trigger during which the video

capture takes place. A buffer memory stores 10 seconds of captured video when the capture function is

enabled. The capture function continues uninterrupted even if the video is in Pause mode.

The Video In is available only on the HMI5121P and HMI5150P.

Video In(USB)

The Video In (USB) Object is used to input and play video on the HMI from an external USB camera. The

size of the object at runtime may not be the same as what was configured. The Video In (USB) object will

resize based on the size of the image from the camera. The maximum size of the object is 572x430 pixels.

The object must be at least 50 pixels from the bottom right corner of the window it is placed on. If the

camera is unplugged, the display will go blank. When the camera is re-connected, the display can be

restored by using the Control Address, by switching screens, or by restarting the HMI.

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