Siemens recently announced LOGO! 9, the latest generation of its compact logic controller designed for small automation projects in both industrial and building applications. The system is a response to growing demand for compact controllers capable of handling more complex automation tasks, while remaining both easy to deploy and cost effective, and represents the first major generational update to the LOGO! platform in more than a decade.
Enhanced performance for complex automation
LOGO! 9 significantly expands the capabilities of compact logic controllers by doubling the number of function blocks available to users. With support for up to 800 function blocks, the controller can implement far more sophisticated logic operations than previous generations. This increased processing capacity allows many applications to be implemented without the need for additional control devices.
The system also increases its input and output capacity, supporting up to 64 digital inputs, 60 digital outputs, and up to 16 analogue inputs and outputs. A new analogue expansion module, the AM4, offers selectable analogue resolution and improved measurement accuracy. Combined with new calculation functions and floating-point number support, this allows precise data processing and control directly within the controller.
One of the most visible changes in LOGO! 9 is the introduction of a colour touchscreen display integrated into the base module. The screen features a resolution of 320 x 240 pixels and provides improved visualisation, diagnostics, and control directly at the device.
For applications requiring enhanced visualisation, Siemens also offers a new 4,3-inch LOGO! text display with a resolution of 480 x 272 pixels. This external display includes dual Ethernet ports and supports secure communication with the controller, allowing users to monitor and control processes more effectively at the machine level.
LOGO! 9 includes Secure Boot functionality and encrypted communication between devices to prevent unauthorised access or manipulation. Firmware updates can be performed through the engineering software, ensuring that systems remain secure and up to date throughout their operational life.
By combining improved computing performance, expanded I/O capacity, modern user interfaces, and enhanced security features, LOGO! 9 represents a major step forward for compact automation systems.
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