{"product_id":"1756-if16h-allen-bradley-controllogix-16-point-analog-input-hart-module","title":"1756-IF16H Allen-Bradley ControlLogix 16 Point Analog Input HART Module","description":"\u003cp\u003eConfigured for differential current signal acquisition in the ControlLogix system, the \u003cstrong\u003eAllen-Bradley 1756-IF16H\u003c\/strong\u003e (\u003cstrong\u003e1756-IF16H\u003c\/strong\u003e Analog Input Module) provides 16 current input channels with HART communication capability. Each channel has a dedicated HART modem. The module accepts 0-20 mA and 4-20 mA signals.\u003c\/p\u003e\n\u003ch3\u003eModel and Ordering Reference\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\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-IF16H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003e1756-IF16H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Model References\u003c\/td\u003e\n\u003ctd\u003e1756IF16H, 1756-IF16H\/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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix 1756\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 differential current inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHART Interface\u003c\/td\u003e\n\u003ctd\u003eDedicated HART modem per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-21 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMexico according to current Rockwell Automation product data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.22 kg, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 14 x 14.5 cm, supplied reference\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\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e200 mA at 5.1 VDC; 125 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Backplane Power\u003c\/td\u003e\n\u003ctd\u003e4.02 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e249 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eOpen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e50 V continuous, input channels to backplane; no isolation between individual input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Overvoltage\u003c\/td\u003e\n\u003ctd\u003e8 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen Circuit Detection\u003c\/td\u003e\n\u003ctd\u003ePositive full-scale reading within 5 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule HART Scan Time\u003c\/td\u003e\n\u003ctd\u003eTypically 1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Interval\u003c\/td\u003e\n\u003ctd\u003e12 months typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eThe current Rockwell Automation product page identifies 1756-IF16H as a ControlLogix 16 Point A\/I HART module and specifies 0-20 mA and 4-20 mA input signals with no isolation between individual single-ended channels. The supplied country-of-origin information states USA, while the current manufacturer page lists Mexico; the manufacturer data should take precedence for procurement documentation.\u003c\/p\u003e\n\u003ch3\u003eAnalog Input and HART Interface\u003c\/h3\u003e\n\u003cp\u003eThe module provides 16 differential current inputs for 0-20 mA and 4-20 mA signals. A dedicated HART modem is provided for each channel, allowing HART device communication in addition to analog current acquisition.\u003c\/p\u003e\n\u003cp\u003eThe input resolution is specified as 16-21 bits. The input impedance is 249 ohm, and maximum input overvoltage protection is specified at 8 VDC. Open-circuit detection produces a positive full-scale reading within 5 s.\u003c\/p\u003e\n\u003cp\u003eFor signal wiring, the HART analog input manual provides separate terminal assignments for 2-wire and 4-wire HART devices. When a common supply is used, the manual specifies tying the IN- connection to RTN.\u003c\/p\u003e\n\u003ch3\u003eControlLogix Electrical Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe module consumes backplane current from both the 5.1 VDC and 24 VDC supplies. The specified current draw is 200 mA at 5.1 VDC and 125 mA at 24 VDC, with total backplane power of 4.02 W. Maximum module power dissipation is 6 W.\u003c\/p\u003e\n\u003cp\u003eInput channels have basic insulation from the backplane with a continuous isolation voltage rating of 50 V. Individual input channels are not isolated from one another. The isolation system was type tested at 1500 VDC for 60 s.\u003c\/p\u003e\n\u003cp\u003eThe module occupies one ControlLogix chassis slot. Electronic module keying is software configurable, while removable terminal block keying is user-defined mechanically. Compatible removable terminal blocks include 1756-TBCH and 1756-TBS6H.\u003c\/p\u003e\n\u003ch3\u003eSignal Integrity and HART Data Handling\u003c\/h3\u003e\n\u003cp\u003eNormal-mode noise rejection is specified as 74 dB at 50\/60 Hz with the 15 Hz filter and 90 dB at 60 Hz with the 20 Hz filter. Common-mode noise rejection exceeds 90 dB at 50\/60 Hz when the 15 Hz or 20 Hz filters are used.\u003c\/p\u003e\n\u003cp\u003eRepeatability is better than 0.01% of range for the 15 Hz and 20 Hz filters. Calibrated accuracy is better than 0.13% of range across the specified filters. The typical calibration interval is 12 months.\u003c\/p\u003e\n\u003cp\u003eThe minimum analog module input scan time is filter dependent and ranges from 11 to 328 ms. The typical HART scan time is approximately 1 s when all channels are HART enabled. Pass-through messages, handheld communications, secondary masters, communication errors, and configuration changes can increase the HART update time.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-IF16H ControlLogix 16 Point Analog Input HART Module\u003c\/li\u003e\n\u003cli\u003e1 x Module housing and electronics assembly\u003c\/li\u003e\n\u003cli\u003eRemovable terminal blocks are not inherently included with the I\/O module and must be selected separately when required.\u003c\/li\u003e\n\u003cli\u003eCompatible RTB options include 1756-TBCH and 1756-TBS6H.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChassis installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module in a compatible ControlLogix chassis position.\u003c\/li\u003e\n\u003cli\u003eVerify the available backplane power before installing the module.\u003c\/li\u003e\n\u003cli\u003eUse the configured electronic keying setting to prevent unintended module substitution.\u003c\/li\u003e\n\u003cli\u003eProvide sufficient cabinet clearance for thermal dissipation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSignal wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse shielded copper conductors for analog signal wiring where specified.\u003c\/li\u003e\n\u003cli\u003eRoute analog signal conductors separately from high-energy switching and power conductors.\u003c\/li\u003e\n\u003cli\u003eFollow the specified conductor category and system-level wiring requirements.\u003c\/li\u003e\n\u003cli\u003eVerify polarity at every IN+ and IN- terminal before energizing the loop.\u003c\/li\u003e\n\u003cli\u003eFor common-supply HART wiring, follow the manufacturer wiring arrangement for the IN- and RTN connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding and shielding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTerminate cable shields according to the plant grounding design and applicable ControlLogix wiring guidelines.\u003c\/li\u003e\n\u003cli\u003eAvoid creating unintended ground loops through multiple shield termination points.\u003c\/li\u003e\n\u003cli\u003eDo not assume that individual input channels are galvanically isolated; the 1756-IF16H provides no isolation between individual input channels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental limits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain an operating ambient temperature within 0 to 60 deg C.\u003c\/li\u003e\n\u003cli\u003eKeep relative humidity within the specified non-condensing range.\u003c\/li\u003e\n\u003cli\u003eThe module uses an open-style enclosure and therefore requires installation inside an appropriate equipment enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the 1756-IF16H support HART?\u003c\/strong\u003e\u003cbr\u003eYes. It provides a dedicated HART modem for each of its 16 differential current input channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat analog signals does the module accept?\u003c\/strong\u003e\u003cbr\u003eThe supported input ranges are 0-20 mA and 4-20 mA differential current signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAre the 16 input channels individually isolated?\u003c\/strong\u003e\u003cbr\u003eNo. The module provides no isolation between individual input channels. Isolation is specified between input channels and the backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow much backplane current does the module require?\u003c\/strong\u003e\u003cbr\u003eThe specified backplane current is 200 mA at 5.1 VDC and 125 mA at 24 VDC, with 4.02 W total backplane power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the module scan time?\u003c\/strong\u003e\u003cbr\u003eAnalog input scan time is filter dependent and specified from 11 to 328 ms. Typical HART scanning is approximately 1 s with all channels enabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat terminal blocks are compatible?\u003c\/strong\u003e\u003cbr\u003eThe specified removable terminal block options are 1756-TBCH and 1756-TBS6H. RTBs must be ordered separately when required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the operating temperature range?\u003c\/strong\u003e\u003cbr\u003eThe specified operating ambient range is 0 to 60 deg C. Nonoperating storage temperature is specified from -40 to +85 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan the module be used for individually isolated signal loops?\u003c\/strong\u003e\u003cbr\u003eNo. Individual input channels are not isolated from one another. Applications requiring channel-to-channel isolation require an appropriate isolated analog input module.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066414223533,"sku":"1756-IF16H","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1756-if16h_1.jpg?v=1786979747","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1756-if16h-allen-bradley-controllogix-16-point-analog-input-hart-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}