{"product_id":"allen-bradley-1791es-ib16-compactblock-guard-i-o-module","title":"Allen-Bradley 1791ES-IB16 CompactBlock Guard I\/O Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1791ES-IB16\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1791ES-IB16\u003c\/strong\u003e Safety Digital Input Module, operates as a dedicated hardware component for discrete safety signal acquisition within EtherNet\/IP platforms.\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\u003e1791ES-IB16\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\u003e0.90 lbs (0.41 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CompactBlock Guard I\/O profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Allen-Bradley industrial operating range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard 24 VDC system power draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSafety Digital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e16 safety inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Network\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP (CIP Safety)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eCompactBlock Guard I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and CIP Safety Network Determinism\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1791ES-IB16 integrates 16 discrete safety input channels that communicate over EtherNet\/IP networks running CIP Safety protocol to achieve high communication velocity and deterministic state monitoring. Designed to process safety inputs from devices such as emergency stops, safety switches, and light curtains, the module conducts continuous internal cross-checking and pulse test diagnostics to detect channel short circuits, wire breaks, and ground faults. Full firmware flash compatibility ensures synchronized cyclic safety data exchange with GuardLogix controllers without deterministic network latency.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What network protocol does the 1791ES-IB16 use to exchange safety data with the central PLC?\u003c\/p\u003e\n\u003cp\u003eA: The module utilizes standard EtherNet\/IP media running CIP Safety transport layer extensions to communicate deterministic safety state information with GuardLogix or CompactGuardLogix processors.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 16 safety input channels on the 1791ES-IB16 be configured for dual-channel sensor evaluation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the input points can be configured in pairs within controller programming to support dual-channel safety devices up to SIL 3 \/ Category 4 \/ PLe requirements.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the 1791ES-IB16 module securely onto a standard 35 mm DIN rail or directly to the enclosure backplate using mounting screws.\u003c\/li\u003e\n\u003cli\u003eConnect the 24 VDC auxiliary power supply conductors to the labeled power terminal block, confirming correct DC supply polarity before energizing.\u003c\/li\u003e\n\u003cli\u003eTerminate safety input device cabling onto designated screw terminals, utilizing twisted shielded wire pairs where electromagnetic field interference is present.\u003c\/li\u003e\n\u003cli\u003eMaintain physical separation between 24 VDC discrete safety signal lines and high-voltage AC power conductors inside cabinet wire channels.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52790060286232,"sku":"1791ES-IB16","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1791ES-IB162_Cocoai.jpg?v=1790734256","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1791es-ib16-compactblock-guard-i-o-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}