{"product_id":"allen-bradley-1756-if6cis-a-analog-input-module","title":"Allen-Bradley 1756-IF6CIS\/A Analog Input Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-IF6CIS\/A Analog Input Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for direct current loop acquisition from passive field transmitters in the ControlLogix platform, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-IF6CIS\/A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-IF6CIS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnalog Input Module) provides direct physical execution of 0–20 mA signal sourcing and measurement across isolated input channels.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo validated suffix segmentation data is defined beyond the base catalog structure.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\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\u003e1756-IF6CIS\/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\u003e0.79 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.3 in x 6.0 in x 5.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.1 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e6 isolated current-sourcing channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Range\u003c\/td\u003e\n\u003ctd\u003e0–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit (0.34 µA\/bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e250 mA at 5 VDC, 275 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Method\u003c\/td\u003e\n\u003ctd\u003eSigma-delta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eInteger (2’s complement), IEEE 32-bit floating point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Blocks\u003c\/td\u003e\n\u003ctd\u003e1756-TBCH \/ 1756-TBS6H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEtherNet\/IP Deterministic Backplane Communication Behavior\u003c\/h3\u003e\n\u003cp\u003eThe module operates within the ControlLogix backplane architecture where cyclic I\/O updates are scheduled through deterministic scan windows. Backplane transaction timing is governed by chassis arbitration, with current draw on both 5 VDC and 24 VDC rails influencing slot-level power budgeting. Signal acquisition is synchronized through sigma-delta conversion pipelines, minimizing aliasing in multi-channel sampling sequences under EtherNet\/IP system scheduling constraints.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1756-IF6CIS\/A channels operate without external loop power supply?\u003cbr\u003eA: Yes. Each channel is current-sourcing and can directly power passive 0–20 mA transmitters without external loop power.\u003c\/p\u003e\n\u003cp\u003eQ: Are all 6 channels electrically independent?\u003cbr\u003eA: Yes. Each channel is individually isolated, reducing inter-channel coupling and allowing mixed transmitter wiring topologies.\u003c\/p\u003e\n\u003cp\u003eQ: What is the impact of backplane current loading on module operation?\u003cbr\u003eA: Backplane consumption at 5 VDC and 24 VDC must remain within chassis limits; excessive loading may delay module readiness during slot initialization.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eThe module must be installed in a ControlLogix chassis slot with power removed. Terminal blocks (1756-TBCH or 1756-TBS6H) shall be fully seated before energizing the backplane. Shielded field wiring is recommended for all current loop channels, with single-point grounding of cable shields at the panel side only. Maintain separation between analog loop wiring and high-frequency switching conductors to reduce induced noise on low-level current signals. Verify channel configuration and scaling parameters prior to enabling loop excitation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43602245091418,"sku":"1756-IF6CIS\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-IF6CIS1.jpg?v=1783310311","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-if6cis-a-analog-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}