{"product_id":"allen-bradley-1756-cp3-plc-programmer-cable","title":"Allen-Bradley 1756-CP3 Serial Programming Cable","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-CP3 is a dedicated serial programming cable designed for the ControlLogix and SLC 500 controller families. It serves as the physical communication link between a controller's front-facing RS-232 port and a computer or other Data Terminal Equipment (DTE). This cable is essential for local programming, firmware updates, and troubleshooting when network-based communication, such as Ethernet or ControlNet, is unavailable or not yet configured.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight-Angle Connector:\u003c\/strong\u003e Features a right-angle 9-pin female D-shell connector at the controller end, allowing for chassis door closure during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNull-Modem Configuration:\u003c\/strong\u003e Engineered for point-to-point serial communication, bridging transmit and receive pins between the PLC and PC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for use with Logix 5550, 5560, and 5570 controllers, as well as SLC 5\/03, 5\/04, and 5\/05 modular processors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Interface:\u003c\/strong\u003e Compatible with standard PC COM ports or high-quality USB-to-Serial adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\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 Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix \/ SLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eSerial RS-232 Programmer Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e10 feet (3 meters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector A\u003c\/td\u003e\n\u003ctd\u003e9-pin D-shell (Right-Angle Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector B\u003c\/td\u003e\n\u003ctd\u003e9-pin D-shell (Straight Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003eDF1 (RS-232)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the controller is powered or in a safe state before connecting or disconnecting the cable to prevent potential communication errors.\u003c\/li\u003e\n\u003cli\u003eThe right-angle connector should be seated fully into the controller's front-facing port to ensure a secure connection.\u003c\/li\u003e\n\u003cli\u003eAvoid routing the cable near high-voltage power lines or heavy electromagnetic interference (EMI) sources to maintain signal integrity during data transfer.\u003c\/li\u003e\n\u003cli\u003eIf using a USB-to-Serial converter, ensure the driver is correctly mapped to the COM port in your programming software (e.g., RSLinx).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs this cable compatible with USB ports?\u003c\/h3\u003e\u003cp\u003eThe 1756-CP3 features a 9-pin serial connector. To use it with a modern computer lacking a native COM port, you must use a high-quality USB-to-Serial converter. Ensure the converter supports the DF1 protocol.\u003c\/p\u003e\u003ch3\u003eCan I keep this cable connected while the ControlLogix chassis door is closed?\u003c\/h3\u003e\u003cp\u003eYes. The 1756-CP3 is specifically designed with a right-angle connector at the controller end to provide the necessary clearance for the chassis door to close while the cable is attached.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50830478737660,"sku":"1756-CP3","price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_d1b1d6a2-26c1-4c60-a801-883af9f2e367.jpg?v=1785547161","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1756-cp3-plc-programmer-cable","provider":"Electronic PLC","version":"1.0","type":"link"}