{"product_id":"1797-cec-allen-bradley-flex-ex-bus-connector-module","title":"1797-CEC | Allen Bradley | FLEX Ex Bus Connector Module","description":"\u003cp\u003eConfigured for communication bridge execution in mixed-signal architectures, the \u003cstrong\u003eAllen Bradley 1797-CEC\u003c\/strong\u003e (\u003cstrong\u003e1797-CEC\u003c\/strong\u003e FLEX Ex Bus Connector Module) provides direct physical and electrical execution of inter-module data linking between standard FLEX I\/O and Intrinsically Safe (IS) FLEX Ex segments.\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\u003e1797-CEC\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\u003e3.00 lbs (1.36 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eDIN rail mount footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 8 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Factor\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\/Shock\u003c\/td\u003e\n\u003ctd\u003e30 g peak acceleration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks\u003c\/h3\u003e\n\u003cp\u003eThe 1797-CEC functions as a physical backplane bus communication velocity adapter, maintaining signal integrity when transitioning from standard I\/O platforms to hazardous-area segments. The module enables I\/O density scaling by supporting up to 8 additional FLEX modules per group, while ensuring that deterministic network timing is preserved across the bus expansion. Firmware flash compatibility is governed by the host communication adapter, as the 1797-CEC operates as a passive-active physical layer interface. Deterministic data exchange between non-IS and IS zones is maintained through the internal master and slave backplane connector paths, ensuring that signal latency remains within nominal tolerances for the specific PLC backplane configuration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1797-CEC provide galvanic isolation?\u003c\/p\u003e\n\u003cp\u003eA: The module manages the physical interface for bus expansion but relies on the associated FLEX Ex communication adapter or isolation barriers for specific galvanic isolation requirements between the non-IS and IS zones.\u003c\/p\u003e\n\u003cp\u003eQ: Is this module compatible with all standard FLEX I\/O adapters?\u003c\/p\u003e\n\u003cp\u003eA: Compatibility is contingent on the specific backplane connector interface of the 1797 FLEX Ex series. Verify that the communication adapter supports the extended bus architecture provided by the 1797-CEC.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the 1797-CEC onto a standard 35 mm DIN rail. Ensure the module is properly seated to maintain the physical connection between the standard I\/O bus and the FLEX Ex bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBus Connection:\u003c\/strong\u003e Engage the master backplane connector on the host side and the FLEX I\/O backplane connector on the expansion side. Verify that all locking mechanisms are fully latched.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Compliance:\u003c\/strong\u003e Ensure the installation site meets the IP20 rating requirements. Maintain ambient temperatures within the -20 to 70 deg C range to prevent accelerated degradation of the internal connector pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Segregation:\u003c\/strong\u003e When installing in cabinets, keep non-IS and IS signal wiring segregated according to local regulatory standards for hazardous area installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Protection:\u003c\/strong\u003e Given the 30 g peak acceleration rating, ensure the DIN rail is rigidly mounted to the cabinet backplane to avoid mechanical fatigue of the connector assemblies in high-vibration environments.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53523479494840,"sku":"1797-CEC","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1797-CEC.jpg?v=1780034859","url":"https:\/\/www.globalpetroparts.com\/products\/1797-cec-allen-bradley-flex-ex-bus-connector-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}