{"product_id":"dc551-cs31-communication-interface-modules-abb","title":"DC551-CS31 Communication Interface Modules | ABB","description":"\u003cp\u003eThe \u003cstrong\u003eABB DC551-CS31 1SAP220500R0001\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eDC551-CS31\u003c\/strong\u003e Communication Interface Modules, operates as a dedicated hardware component for CS31 bus slave integration and distributed I\/O execution within ABB AC500 \/ S500 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\u003eDC551-CS31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1SAP220500R0001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCommunication Interface Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.12 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e67.5 x 76 x 62 mm\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\u003eSupply Voltage 20.4 to 28.8 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDedicated Digital Inputs\u003c\/td\u003e\n\u003ctd\u003e8 channels (24 VDC, 5 mA input current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfigurable Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e16 channels (24 VDC, transistor output 0.5 A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time\u003c\/td\u003e\n\u003ctd\u003eConfigurable 0.1 to 32 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Rack Expansion\u003c\/td\u003e\n\u003ctd\u003eExtendable by up to 7 S500 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\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 Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe module functions as a CS31 fieldbus slave node, coordinating high-speed cyclic data transmission between the central controller and local expansion racks. Internal bus management logic preserves deterministic backplane bus communication velocity across up to 7 connected expansion modules. Onboard memory holds firmware flash compatibility parameters to maintain synchronized channel scanning, programmable input filtering (0.1 to 32 ms delay), and rapid diagnostic state reporting across high-density I\/O configurations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many total local expansion modules can be connected to a single DC551-CS31 interface?\u003c\/p\u003e\n\u003cp\u003eA: The DC551-CS31 supports local rack expansion of up to 7 additional S500 I\/O modules via its right-side backplane bus interface.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum switching current capacity on the configurable digital output channels?\u003c\/p\u003e\n\u003cp\u003eA: Each configurable transistor output channel supplies up to 0.5 A at 24 VDC (operational range 20.4 to 28.8 VDC).\u003c\/p\u003e\n\u003cp\u003eQ: Does the module require an active system power restart when modifying input signal delay parameters?\u003c\/p\u003e\n\u003cp\u003eA: Configurable input delay times (0.1 to 32 ms) are written directly via software configuration during node startup without requiring physical board modifications.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize all 24 VDC primary power supplies before mounting or removing the DC551-CS31 module from its terminal base.\u003c\/li\u003e\n\u003cli\u003eWear a grounded electrostatic discharge (ESD) wrist strap prior to handling the module assembly.\u003c\/li\u003e\n\u003cli\u003eSnap the module firmly onto its terminal base (such as TU551-CS31) until side locking tabs engage completely.\u003c\/li\u003e\n\u003cli\u003eFasten all field power and signal wiring securely, ensuring field supply voltage remains strictly within 20.4 to 28.8 VDC.\u003c\/li\u003e\n\u003cli\u003eRoute CS31 fieldbus communication cables separately from high-voltage AC conductors with a minimum physical clearance of 200 mm to suppress noise coupling.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53250625405237,"sku":"DC551-CS31 1SAP220500R0001","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/DC551-CS311SAP220500R0001.png?v=1785910291","url":"https:\/\/www.5gplc.com\/products\/dc551-cs31-communication-interface-modules-abb","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}