{"product_id":"plc-chassis-allen-bradley-1746-a2-slc-500-series","title":"PLC Chassis | Allen-Bradley 1746-A2 SLC 500 Series","description":"\u003cp\u003eThe \u003cstrong\u003e1746-A2\u003c\/strong\u003e is a 2-slot modular chassis designed for the Allen-Bradley SLC 500 programmable logic controller system. It provides the mechanical housing and backplane interconnection for one SLC 500 processor or 1747 I\/O adapter module alongside one 1746 I\/O module. The backplane distributes logic power provided by an attached 1746 power supply unit directly to the installed modules across its high-speed communication bus.\u003c\/p\u003e\n\u003ch3\u003eBackplane Power Distribution and Interconnection\u003c\/h3\u003e\n\u003cp\u003eEvery slot on the backplane features standard 1746 card guides and socket connectors, allowing backplane communication and power supply feeding. Slot 0 is strictly reserved for the system processor (such as an SLC 5\/01, 5\/02, 5\/03, 5\/04, or 5\/05) or a remote I\/O adapter. Slot 1 accommodates any standard 1746 digital, analog, or specialty I\/O module. Power is supplied by mounting a compatible 1746 power supply unit onto the left side of the chassis, which connects directly to the backplane power harness.\u003c\/p\u003e\n\u003ch3\u003eSystem Expansion and Mounting\u003c\/h3\u003e\n\u003cp\u003eThe 1746-A2 supports standard panel mounting within standard industrial enclosures. For applications requiring more than two slots, multiple 1746 chassis can be interconnected in series using 1746-C9, 1746-C7, or 1746-C16 interconnect cables to form a continuous backplane across up to three chassis, subject to maximum system module limits.\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\u003e1746-A2\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e2-Slot Modular Hardware Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible System\u003c\/td\u003e\n\u003ctd\u003eSLC 500 \/ 1746 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Slots\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReserved Slot Configuration\u003c\/td\u003e\n\u003ctd\u003eSlot 0: Processor or Adapter; Slot 1: I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1746-A2 chassis be used without a standalone power supply unit? A: No, the 1746-A2 backplane does not generate its own operating voltage. It requires a compatible 1746 power supply unit (such as a 1746-P1, 1746-P2, or 1746-P4) mounted to the left side of the frame to supply 5 VDC and 24 VDC backplane power to installed modules.\u003c\/p\u003e\n\u003cp\u003eQ: Which module must be installed in Slot 0 of the 1746-A2? A: Slot 0 (the leftmost slot) is dedicated to the system controller or remote I\/O adapter module. Standard 1746 I\/O modules must be installed in Slot 1.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67166967136371,"sku":"1746-A2","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1746-A2_Cocoai.jpg?v=1794379260","url":"https:\/\/www.dcssupplier.com\/ar\/products\/plc-chassis-allen-bradley-1746-a2-slc-500-series","provider":"DcsSupplier Limited","version":"1.0","type":"link"}