{"product_id":"1771-dxps-allen-bradley-plc-5-series-control-coprocessor","title":"1771-DXPS Allen-Bradley PLC-5 Series Control Coprocessor","description":"\u003cp\u003eConfigured for serial communication expansion and offloaded process routines in 1771 I\/O chassis, the \u003cstrong\u003eAllen-Bradley 1771-DXPS\u003c\/strong\u003e (\u003cstrong\u003e1771-DXPS\/A\u003c\/strong\u003e Control Coprocessor) provides direct physical\/electrical execution across PLC-5 backplane architectures.\u003c\/p\u003e\n\u003ch3\u003eRevision Designation \u0026amp; Variant Array\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model\u003c\/strong\u003e: 1771-DXPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpare Model Code\u003c\/strong\u003e: 1771-DXPS\/A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Series\u003c\/strong\u003e: Series A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Role\u003c\/strong\u003e: Serial expander module and dedicated control coprocessor for local ASCII or custom protocol handling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical \u0026amp; Electrical Data\u003c\/h3\u003e\n\u003cfigure\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\u003e1771-DXPS \/ 1771-DXPS\/A\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\u003e0.9 kg (1 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.2 cm x 27.3 cm x 15.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard 1771 backplane 5 VDC bus load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537109060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Integration \u0026amp; Data Exchange\u003c\/h3\u003e\n\u003cp\u003eThe 1771-DXPS leverages high-speed backplane bus communication velocity to exchange data blocks directly with the host PLC-5 processor without degrading execution cycles. Built-in firmware flash compatibility allows deterministic handshaking over serial links, expanding ASCII peripheral connections while maintaining low-latency backplane throughput.\u003c\/p\u003e\n\u003ch3\u003ePackage Delivery Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1771-DXPS Control Coprocessor Module\u003c\/li\u003e\n\u003cli\u003e2 x Plastic Keying Bands\u003c\/li\u003e\n\u003cli\u003e1 x Printed Installation Reference Guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCabinet Assembly \u0026amp; Mounting Protocol\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Depressurization\u003c\/strong\u003e: Disconnect 1771 chassis power supplies and field voltage sources prior to module seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Keying Setup\u003c\/strong\u003e: Position plastic keying bands on the backplane connector between pins 10\/12 and 18\/20 to prevent improper slot insertion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Insertion\u003c\/strong\u003e: Slide the module firmly into the designated 1771 I\/O slot until the top and bottom latching mechanisms lock securely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary function of the 1771-DXPS module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt serves as a serial expander coprocessor to offload custom serial routines and ASCII data processing from the main PLC-5 processor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1771-DXPS be inserted while the chassis power is active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, inserting or removing the module under power causes electrical arcing and can damage backplane bus traces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the exact weight of the shipping package?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe physical shipping weight of the 1771-DXPS module is 0.9 kg (1 lbs).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Where are the keying bands placed on the backplane for this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKeying bands are fitted on the backplane connector upper and lower pin sets according to standard 1771 slot keying guidelines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1771-DXPS require a dedicated slot in the 1771 rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt installs into any available standard 1771 I\/O rack slot except the far-left slot reserved for the main processor or adapter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the module transfer data to the local PLC-5 controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eData exchange occurs across the 1771 backplane bus using block transfer read and block transfer write instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hardware revision corresponds to the spare code 1771-DXPS\/A?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe spare model code 1771-DXPS\/A denotes Series A hardware production units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the outer dimensions for freight shipping?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEstimated package dimensions measure 3.2 cm x 27.3 cm x 15.2 cm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066443255981,"sku":"1771-DXPS","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1771-dxps_1.jpg?v=1786545216","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1771-dxps-allen-bradley-plc-5-series-control-coprocessor","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}