{"product_id":"allen-bradley-1745-lp101-slc-100","title":"Allen-Bradley 1745-LP101 SLC 100","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1745-LP101\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1745-LP101\u003c\/strong\u003e Programmable Controller Processor Unit, operates as a dedicated hardware component for direct CPU execution and integrated discrete I\/O control within SLC 100 platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware 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\u003e1745-LP101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.30 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.0 x 6.5 x 4.0 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e15 VA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e85-132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Frequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated I\/O Count\u003c\/td\u003e\n\u003ctd\u003e16 Circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Architecture\u003c\/td\u003e\n\u003ctd\u003eBattery-Backed CMOS RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessing Unit\u003c\/td\u003e\n\u003ctd\u003eEmbedded Central Processing Unit (CPU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Interconnect \u0026amp; I\/O Density Scaling\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeterminism \u0026amp; CPU Scan Execution\u003c\/strong\u003e: The integrated CPU executes user program logic directly against the 16 internal I\/O points while driving real-time hardware status updates across the expansion backplane bus without network latency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Flash Compatibility \u0026amp; Address Mapping\u003c\/strong\u003e: Controller memory maps discrete bit registers straight into the internal processor register table, maintaining strict scan synchronization across connected expansion modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Power Distribution\u003c\/strong\u003e: The embedded power supply converts incoming 85-132 VAC line power into regulated logic voltage, powering internal processor gates and sending expansion backplane bus power to downstream modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1745-LP101 retain user ladder logic when primary AC operating power is disconnected?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Volatile ladder program memory is preserved via an onboard battery-backed CMOS RAM module during main power interruptions.\u003c\/p\u003e\n\u003cp\u003eQ: Can expansion chassis cables be connected or removed from the 1745-LP101 while under power?\u003c\/p\u003e\n\u003cp\u003eA: No. Hot-swapping is prohibited. AC supply power must be isolated before plugging or unplugging ribbon bus cables to avoid backplane circuit damage.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Mounting \u0026amp; Thermal Clearance\u003c\/strong\u003e: Mount the base unit vertically inside a sealed metallic enclosure using standard mounting hardware. Maintain a minimum vertical clearance of 50 mm (2 inches) above and below the chassis for unimpeded air convection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Power Wiring\u003c\/strong\u003e: Connect 120 VAC line power to designated supply terminals using properly sized copper conductors. Tighten screw terminals according to standard industrial torque specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Shielding\u003c\/strong\u003e: Connect a dedicated, low-impedance copper ground braid from the unit frame ground point to the main enclosure grounding bar. Keep low-voltage signal wiring separated from power feeds by at least 200 mm to suppress electromagnetic noise coupling.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45340469952627,"sku":"1745-LP101","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-11_09-14-10.png?v=1786411649","url":"https:\/\/www.dcssupplier.com\/products\/allen-bradley-1745-lp101-slc-100","provider":"DcsSupplier Limited","version":"1.0","type":"link"}