V570-57-T20B Color Touchscreen PLC
V570-57-T20B Color Touchscreen PLC from Unitronics (Quincy, MA)

Unitronics (Quincy, MA) has added the V570-57-T20B to the company’s Vision570™ series of 5.7” Color Touchscreen PLCs. The model is lower in cost and has a white LED instead of fluorescent display backlight. The display of the V570-57-T20B is also TFT QVGA. Onboard I/Os can be added to this model by snapping a module onto the back of the PLC, and snap-in I/O Modules come in several configurations. I/O Expansion modules enable integrating up to 512 I/Os per Vision PLC.

All three Vision570 models offer a range of embedded features such as multiple auto-tuned PID loops, and internal 120K database for data-logging and recipe programming. Communication options include TCP/IP Ethernet, GSM/SMS, MODBUS, and CAN open networking plus remote access for data acquisition and program download. 2MB Ladder code application memory (plus 6MB for images and 1MB for fonts) enable the Vision570 units to run complex control and automation tasks.

The TFT QVGA display enables color-coded operator instructions and red attention-grabbing alarm screens. They can also display graphs according to historical values to reflect trends of recorded data. Display options include more than 1000 user-designed screens, and up to 500 images per application.

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Embedded Technology Magazine

This article first appeared in the November, 2009 issue of Embedded Technology Magazine.

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