Siemens HMI – Human Machine Interface For Consistent Visualization in End-To-End Solutions
Siemens HMI allows users to monitor and control systems and industrial processes with ease, yet integration with other software systems may prove challenging. Discover the best info about نماینده زیمنس در یران.
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Visualization
Human-machine interface for end-to-end visualization solutions
SIMATIC HMI meets all your requirements for intelligent industrial visualization – be it directly at machines, process control lines, or complex plants. With rugged panels with 4- to 24-inch diagonal displays suited for harsh environments across industries. It provides consistent engineering design and innovative control.
SIMATIC Basic Panels 2nd Generation provides all essential HMI basic functions at a beautiful price point, opening up new possibilities for operation and monitoring at reduced costs – contributing significantly to enhanced process quality even in smaller applications.
SIMATIC HMI Unified Comfort Panels include support for Industrial Edge by default, allowing users to expand their visualization applications with apps from this ecosystem quickly. Furthermore, hardware now provides much more power to execute these apps securely; system limits have doubled or even tripled since then, enabling larger visualization applications to run on these panels.
Communication
The Siemens HMI can communicate with both Siemens and non-Siemens PLCs. To accomplish this, add a new communication method via WinCC, prompting users to select from several protocols before setting up tags in their Siemens HMI.
HMIs can serve as OPC UA servers, enabling other systems that support this standard to access its data. This feature can be especially beneficial in facilities with many unconnected machines as it acts as a single point for all of them to collect.
Additionally to OPC UA, the HMI can communicate with a PLC via an S7 communication link. This allows it to request values from the PLC via FB14/FB15 requests or S7 request telegrams before returning those values directly into the CPU memory of PLCs.
HMI accesses all PN/DP tags created on a PLC regardless of their IP address space location, but for security purposes, it is recommended that control system devices be kept behind firewalls so as to allow only authorized personnel access.
Security
Siemens recently issued patches to some of its human-machine interface (HMI) devices to address a high-severity vulnerability, CVE-2020-15798, that allows remote attackers to gain complete control of them remotely. According to Siemens, this flaw (CVE-2020-15798) affects SIMATIC HMI Comfort Panels equipped with SIPLUS products designed for extreme conditions and SIMATIC HMI KTP Mobile Panels; however, a security researcher at TXOne Networks, an IoT security firm, formed by Moxa and Trend Micro; found that none of these affected devices require authentication when connecting via Telnet thus giving access to remote attackers with full access of control of those affected devices allowing complete control from them remotely.
Siemens also recommended that organizations go further by setting their network environments up according to operational guidelines for industrial security, isolating control system networks and remote devices from business networks and limiting users who can access devices as well as changing default passwords to prevent changes from unauthorized parties attempting to modify configurations of any kind.
NCCIC/ICS-CERT recommends that Siemens customers review their security advisories in order to gain more information, assess any vulnerabilities in their operating environments, and implement solutions based on these advisories accordingly. Vulnerabilities will impact organizations differently depending on architectural design, hardware architecture, product implementation methods, etc. For optimal protection, NCCIC/ICS-CERT strongly suggests developing and maintaining an integrated and holistic industrial security concept that utilizes multiple layers of defenses and constantly updates these plans.
Integration
Siemens HMIs are designed to integrate seamlessly with other automation systems. OPC UA compatibility means they can serve as either a server or client for other automation devices and collect plant data directly onto an HMI for display; this can save both time and money by decreasing transmission between different systems.
Siemens HMIs feature another critical advantage: supporting edge apps. These applications expand their functionality beyond that of a standard panel to handle things such as monitoring, process control, and security, providing an effective way of increasing its functionality without spending hours coding new software.
Siemens also offers a training system designed to teach students how to program a PLC and HMI using a Siemens S7-1200 PLC and KTP700 HMI; Windows-based TIA Portal software provides access for relay ladder, function block diagram, and sequential function block learning.
The addition of a Siemens HMI can be accomplished easily by selecting appropriate menu options and choosing from among the 20 communication protocols available; after making this connection, a quick and straightforward wizard will help commission this new device.
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