PLC, HMI, and I/O
Unitronics has recently launched three products: an additional member of their PLC Samba series, the third model of the HMI Unistream product line, and two dense I/O modules. All devices come with free software and two with CANopen.
THE SAMBA IS A PALM-SIZED PLC WITH HMI and onboard I/Os. The first model of Samba was released this spring; now, the Israeli company is expanding the series with a 4,3-inch HMI panel model. The HMI with 3,5-inch or 4,3-inch QVGA 16-bit touchscreen enables data entry and display of variable data, including color trend graphs and alarm screens. It supports 24 user-designed screens, and up to 40 images per application. The integrated PLC offers a range of features including two auto-tuned PID loops, time-based RTC control, data logging, and recipes.
The internal memory holds 0,5 MiB of application logic, plus 512 KiB for fonts and 0,5 MiB for images. Onboard I/Os offer digital, analog, and high-speed functionality. The flat fascia and IP66/IP65/NEMA4X rating makes the PLC fit for the food and pharmaceutical industries—suitable wherever spray or wipe down requirements apply. Both units come supplied with a programming port (USB for 4,3-inch, EIA-232 for 3,5-inch). Additional ports can be added: EIA-485 or Ethernet, and CAN. Samba supports GPRS/GSM, email and SMS, as well as industrial TCP/IP protocols, Modbus, DF1 slave, CANopen, and J1939; it can also be adapted to any 3rd-party protocol.
The PLC uses Unitronics’ free Visilogic software. The software provides a single environment for hardware and communications configuration, ladder application development, and HMI design, including a library of industrial images. Utilities include remote PC access and data export. The company offers free software and technical support for all of their products.
The company also launched the third model of the Unistream product line. The Unistream15 is a color touchscreen with 15,6-inch, 1366 pixel x 768 pixel resolution, and 16 M colors. This model rounds out the line in addition to the 7-inch and 10-inch HMI panels. The user can create a
customized, all-in-one controller by adding the CPU and I/O modules to
the HMI of their choice.
According to the company, the included Unilogic studio software cuts programming time by 50 %, by predicting the programmer’s intentions and reusing written code. Programmers build a library of user-defined function blocks and HMI screens which can be imported to new projects or shared with other programmers. The software’s predictive capabilities save a significant amount of time defining I/O points, PIDs and other functions. Features like drag and drop, automatic line creation and re-use options for existing code make programming quick and easy. Recently, the company released additional features for the panels like a video player and new HMI widgets. Additionally, a .pdf viewer was added, enabling the users to page through .pdf files on the HMI panel. Other features include gauges and find-and-replace tags support.
Unistream supports EIA-485, CANopen, UniCAN, and Modbus (serial and Ethernet). It can adapt to third-party protocols; the USB and serial ports support external devices such as modems, printers, barcode readers and more.
The company also recently launched two dense I/O models for the Unistream line. By enabling users to implement more I/O points in less space, these two dense I/O models improve the flexibility of the platform and help users to reduce the overall system costs. The models offered are UID-W1616T and UID-W1616R. The former includes 16 transistor, pnp or npn inputs and 16 pnp outputs, the latter includes 16 relay, pnp or npn inputs and 16 outputs.
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