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The final version of STEP 5 was version 7.2 (upgradable to version 7.23 Hotfix 1 with patches). In addition to STEP 5, Siemens offered a proprietary State logic programming package called Graph5. Graph5 is a sequential programming language intended for use on machines that normally run through a series of discrete steps.
Pre-certified software components within CODESYS make it much easier for device manufacturers to have their controllers SIL2 or SIL3 certified according IEC 61508. Therefore, CODESYS Safety consists of components within the programming system and the runtime system, whereas the development is completely integrated in the IEC 61131-3 programming ...
SIMATIC WinCC is a supervisory control and data acquisition (SCADA) and human-machine interface (HMI) system from Siemens. SCADA systems are used to monitor and control physical processes involved in industry and infrastructure on a large scale and over long distances. SIMATIC WinCC can be used in combination with Siemens controllers.
PLC programs are typically written in a programming device, which can take the form of a desktop console, special software on a personal computer, or a handheld programming device. [32] Then, the program is downloaded to the PLC directly or over a network. It is stored either in non-volatile flash memory or battery-backed-up RAM.
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Siemens Digital Industries Software (formerly UGS and then Siemens PLM Software) is an American computer software company specializing in 3D & 2D Product Lifecycle Management (PLM) software. The company is a business unit of Siemens , operates under the legal name of Siemens Industry Software Inc , and is headquartered in Plano, Texas .
Siemens used and still maintains FlexOS in their factory automation equipment as well. For example, their Simatic S5 STEP-5 operating system S5-DOS/MT is based on FlexOS 386 with X/GEM, FlexNet and Btrieve, whereas the smaller S5-DOS system, also present on these systems, is a variant of Digital Research's Personal CP/M-86.
At this time, this represented Siemen's biggest deal in the industrial software sector. [31] Mentor Graphics started to operate as "Mentor, a Siemens Business". [ 32 ] Under the terms of the acquisition, Mentor Graphics kept its headquarters in Wilsonville with workforce intact, and operated as an independent subsidiary.