The PLC provided 60 IOs internally and could be expanded decentrally.
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Compact control cabinet construction, e.g. 907 Ac 1131 Programming Software Free Download Software The Advant Controller 31 series 40-50 offered small and compact PLCs with central and decentralized extensions.Located in the top half of the Home Page, the 'protection status area' changes color (green or red) to notify you of security events that occur on your PC.