{"product_id":"siemens-505-6851-a-remote-base-controller","title":"Siemens 505-6851-A Remote Base Controller","description":"\u003cdiv\u003e\u003cp\u003eSiemens PPX:505-6851-A Remote Base Controller is the intelligent interface that links a SIMATIC TI505 controller with remote base I\/O in the TI505 Redundant I\/O system. It supports addressing up to 2048 I\/O points—one local I\/O base plus up to 15 remote bases—over shielded twisted-pair wiring, with a controller-to-RBC link distance limited to about 3300 ft and remote bases capable of being up to 6600 ft apart. Front-panel features include base-number selection via a thumbwheel and rotary switch, plus status LEDs and status codes that indicate operation and faults. An RS232 port provides programming\/configuration access, and a modem F-connector enables remote connectivity. In dual-RBC configurations within the same base, the RBC on the right becomes the active unit at power-up. The PPX:505-6851-A is designed for use with Series 505 I\/O and uses the shielded-twisted-pair link, with reference documentation that documents PPX:505–6851A\/B RBCs and their role in the SIMATIC 545\/555\/575 architecture. \u003c\/p\u003e\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New Surplus No Box","offer_id":46268225323242,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-017.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-505-6851-a-remote-base-controller","provider":"GTG Hardware","version":"1.0","type":"link"}