Mini-PLC includes high-voltage power output

. In addition, the PLCs can be directly integrated into machines, bringing the advantage of reduced wiring.

The first in the new line-up from RS, Barth’s international distributor, is the STG-65. This is a freely programmable 1kW mini-PLC that includes a high-voltage power output to control AC-loads up to 4A maximum (continuous operation), a 0-10V input and two universal inputs, all of which makes the PLC ideal for use as a direct AC driver for temperature control applications.

The second device is the STG-95, which offers a two-line blue-backlit LCD, a mounting depth of only 15mm, and is designed for panel-mount applications that require an IP40 protection grade.

The third is the STG-100, which is the outdoor and splash-proof mini-PLC version in the Barth mini-PLC series. The device also comes with a two-line LCD and can be used for applications where an IP65 protection grade on the front panel is required.

Both of these devices are programmable via BASIC, C or assembler languages. The fourth is the panel-mount STG-115, which also comes with a two-row backlit LCD, but can be programmed via the intuitive miCon-L graphical software, which is downloadable for free from the Barth website.

Based on the STG-600 and STG-500 PLCs, RS has also added two mini-PLCs with the STG-650 and STG-550, which offer graphical programmability and communication capabilities via the CAN bus. The RS-485 port allows the integration of the mini-PLCs in existing networks and also connection to various network components such as displays, stepper motors or sensors and other monitoring devices.

The STG-550 and STG-650 do not need any peripheral components for operation and are well suited to harsh environments, opening up a variety of applications in industrial, automotive and 12/24V battery-powered applications.

The new starter kits – STA-650 and STA-550 – provide a package to enable a quick introduction to the graphical programming of the STG-650 and STG-550 via the miCon-L software, which provides programming, simulation and testing.