{"product_id":"1791es-ib8xobv4-allen-bradley-compactblock-guard-i-o-module","title":"1791ES-IB8XOBV4  | Allen-Bradley CompactBlock Guard I\/O Module","description":"\u003cp\u003eThe \u003cstrong\u003e1791ES-IB8XOBV4\u003c\/strong\u003e is a 24 VDC EtherNet\/IP CIP Safety I\/O module in the Allen-Bradley CompactBlock Guard I\/O family. Designed for safety-critical machine control systems, it features 8 sink\/source safety inputs and 4 dual-channel bipolar outputs rated at 250 mA. The module communicates using CIP Safety over EtherNet\/IP, allowing seamless integration with GuardLogix safety controllers to execute safety functions up to SIL 3 \/ PLe.\u003c\/p\u003e\n\u003ch3\u003eSafety Input and Bipolar Output Structure\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1791ES-IB8XOBV4\u003c\/strong\u003e provides 8 individually isolated safety inputs that can be wired for single-channel or dual-channel safety devices such as emergency stops, safety light curtains, and door interlocks. On the output side, it incorporates 4 dual-channel safety outputs utilizing a bipolar configuration (current sourcing and current sinking pair per output channel). This arrangement continuously monitors for short circuits and cross-faults, ensuring rapid shutdown during fault conditions.\u003c\/p\u003e\n\u003ch3\u003eCIP Safety Communication and Configuration\u003c\/h3\u003e\n\u003cp\u003eEtherNet\/IP integration allows safety data and standard diagnostics to share a single network connection, eliminating dedicated safety buses. The module supports Safety Network Numbers (SNN) and Safety Task execution via Studio 5000 Logix Designer. Built-in test pulse outputs verify line integrity to field inputs, while front-panel status LEDs indicate network connectivity, module health, input states, and output fault status.\u003c\/p\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-IB8XOBV4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCompactBlock Guard I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCIP Safety Guard I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Level\u003c\/td\u003e\n\u003ctd\u003eSIL 3 (IEC 61508), PLe (ISO 13849-1), Cat 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Inputs\u003c\/td\u003e\n\u003ctd\u003e8 isolated safety inputs (sink\/source)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Outputs\u003c\/td\u003e\n\u003ctd\u003e4 dual-channel bipolar outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Rating\u003c\/td\u003e\n\u003ctd\u003e250 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (11 to 28.8 VDC range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP (CIP Safety)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.10 lbs (0.50 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What makes the bipolar output configuration on the 1791ES-IB8XOBV4 safer than standard outputs? A: Bipolar outputs control both the 24 VDC positive side (sourcing) and the 0 VDC return side (sinking) of the load. This dual-switching scheme prevents short-to-ground or short-to-power faults from energizing safety actuators accidentally.\u003c\/p\u003e\n\u003cp\u003eQ: Can standard non-safety inputs be wired to the 1791ES-IB8XOBV4? A: Yes, standard non-safety field devices can be connected to the inputs, but safety signals processed through CIP Safety logic will execute at the configured safety integrity level.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67049153134707,"sku":"1791ES-IB8XOBV4","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1791ES-IB16_Cocoai.jpg?v=1793259187","url":"https:\/\/www.dcssupplier.com\/ar\/products\/1791es-ib8xobv4-allen-bradley-compactblock-guard-i-o-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}