{"product_id":"schneider-electric-pc-e984-255-plc-cpus","title":"Schneider Electric PC-E984-255 PLC CPUs","description":"\u003cp\u003eThe \u003cstrong\u003ePC-E984-255\u003c\/strong\u003e is a Compact 984 programmable logic controller CPU module manufactured by Schneider Electric under the Modicon brand. Equipped with 16k words of logic memory, 42k words of extended register memory, and a logic processing scan time of 2.5 ms per 1,000 instructions, the processor is designed for localized machine control and distributed automation. It integrates onboard network interfaces, including one Modbus serial communication port and one Modbus Plus peer-to-peer network port.\u003c\/p\u003e\n\u003ch3\u003eOnboard Interfaces and Data Preservation\u003c\/h3\u003e\n\u003cp\u003eThe CPU features an integrated Modbus Plus interface, allowing direct peer-to-peer high-speed deterministic communication across distributed controller networks without requiring an external co-processor. Program storage and system overhead registers rely on internal RAM backed by a lithium battery, while a hardware memory-protect switch prevents accidental overwrites. The unit also includes an auxiliary slot supporting optional 8-byte or 32-byte EEPROM cartridges for non-volatile backup.\u003c\/p\u003e\n\u003ch3\u003eProgramming and Architecture\u003c\/h3\u003e\n\u003cp\u003eOperating within the Compact 984 architecture, the \u003cstrong\u003ePC-E984-255\u003c\/strong\u003e executes standard Modicon 984 ladder logic programs developed via Modsoft or ProWORX software packages. The module directly mounts to A120-series base plates to handle local and expansion I\/O point traffic.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePC-E984-255 (PCE984255)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSchneider Electric \/ Modicon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCompact PLC CPU Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCompact 984\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e3595861131767\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Memory\u003c\/td\u003e\n\u003ctd\u003e16k words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtended Register Memory\u003c\/td\u003e\n\u003ctd\u003e42k words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Execution Speed\u003c\/td\u003e\n\u003ctd\u003e2.5 ms \/ k instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e1 x Modbus serial (RS-232), 1 x Modbus Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Backup\u003c\/td\u003e\n\u003ctd\u003eInternal RAM with battery backup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Protection\u003c\/td\u003e\n\u003ctd\u003eHardware write-protect switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Storage Slot\u003c\/td\u003e\n\u003ctd\u003eSupports 8-byte \/ 32-byte EEPROM cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Software\u003c\/td\u003e\n\u003ctd\u003eModsoft, ProWORX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany (DE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.52 kg (1.15 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the PC-E984-255 differ from the PC-E984-251 model?\u003c\/p\u003e\n\u003cp\u003eA: The PC-E984-251 provides two standard RS-232 Modbus serial ports, whereas the PC-E984-255 includes one Modbus RS-232 port and adds an onboard Modbus Plus peer-to-peer networking port.\u003c\/p\u003e\n\u003cp\u003eQ: How is the user program protected against power loss or unauthorized modification?\u003c\/p\u003e\n\u003cp\u003eA: Program registers and logic are sustained by an internal lithium battery. Hardware security is enforced via a physical memory-protect switch, and additional non-volatile backup can be added using an optional EEPROM cartridge.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":67148441616499,"sku":"PC-E984-255","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/PC-E984-251_Cocoai.jpg?v=1794205985","url":"https:\/\/www.dcssupplier.com\/products\/schneider-electric-pc-e984-255-plc-cpus","provider":"DcsSupplier Limited","version":"1.0","type":"link"}