{"product_id":"foxboro-fbm204-rh914sy-channel-isolated-i-o-module","title":"Foxboro FBM204 RH914SY Channel Isolated I\/O Module","description":"\u003cp\u003eConfigured for high-precision process signal interfacing within DCS platforms, the \u003cstrong\u003eFoxboro FBM204 RH914SY\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFBM204\u003c\/strong\u003e Analog I\/O Module, provides direct physical and electrical execution for 0-20.4 mA dc current loops. This component features independent channel-to-channel isolation to prevent ground potential interference between disparate field devices, ensuring signal integrity across multi-loop control architectures.\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\u003eFBM204 RH914SY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFoxboro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e284 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e102 mm x 45 mm x 104 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e7 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Channels\u003c\/td\u003e\n\u003ctd\u003e4 Input \/ 4 Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.03% of span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control and Galvanic Isolation\u003c\/h3\u003e\n\u003cp\u003eThe FBM204 utilizes Sigma-Delta A\/D conversion to maintain high resolution across its 4 input and 4 output channels. Each loop is galvanically isolated, providing superior common-mode rejection exceeding 100 dB at 50\/60 Hz, which effectively suppresses noise in electrically noisy environments. The module provides loop power supply protection through voltage regulation and current limiting, ensuring that field-side faults are contained. The processing architecture supports configurable integration periods, allowing the control system to balance signal filtering against loop response time requirements.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the FBM204 be used in redundant control configurations?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module is designed to operate with redundant 24 V dc input voltage sources, ensuring continuous operation in the event of a single power supply failure.\u003c\/p\u003e\n\u003cp\u003eQ: Is the FBM204 module field-replaceable while the system is powered?\u003c\/p\u003e\n\u003cp\u003eA: The module supports standard hot-swapping procedures within the Foxboro DCS rack, provided that local safety regulations and site-specific operational procedures for live maintenance are followed.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the module is fully seated into the backplane to establish a secure connection for the communication bus and redundant power rails.\u003c\/li\u003e\n\u003cli\u003eVerify that field wiring shield drain wires are terminated at the designated common ground bar to maintain electromagnetic compatibility (EMC).\u003c\/li\u003e\n\u003cli\u003eConfirm that the total output load for any single output channel does not exceed the 750 ohm maximum to prevent output saturation.\u003c\/li\u003e\n\u003cli\u003eRoute signal cables in dedicated cable trays separated from high-voltage AC lines to maintain the module's specified signal accuracy.\u003c\/li\u003e\n\u003cli\u003eIn Class G3 environments, ensure the module is installed in a properly rated enclosure to protect against corrosive atmospheric contaminants.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":53031827276085,"sku":"FBM204 RH914SY","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/FBM204RH914SY.png?v=1782283566","url":"https:\/\/www.5gplc.com\/products\/foxboro-fbm204-rh914sy-channel-isolated-i-o-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}