{"product_id":"abb-dx531-s500-digital-i-o-module","title":"ABB DX531 S500 Digital I\/O Module","description":"\u003cp\u003eConfigured for discrete high-voltage signal interfacing in S500 \/ AC500 PLC platforms, the \u003cstrong\u003eABB DX531\u003c\/strong\u003e (\u003cstrong\u003eDX531\u003c\/strong\u003e Digital I\/O Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe catalog model designation specifies a combination digital input and relay output module:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDX\u003c\/strong\u003e: Digital combination expansion module designation within the S500 I\/O system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e531\u003c\/strong\u003e: Specific hardware configuration code representing 8 high-voltage AC digital inputs and 4 relay outputs.\u003c\/li\u003e\n\u003c\/ul\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\u003eDX531\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\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\u003e0.151 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e67.5 mm x 76 mm 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\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e8 channels (115 to 230 VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003e4 relay channels (24 to 230 VAC\/DC, 3 A rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time\u003c\/td\u003e\n\u003ctd\u003e20 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Degree\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eEU Directive 2011\/65\/EU \/ Amendment 2015\/863\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus \u0026amp; Deterministic I\/O Processing\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB DX531\u003c\/strong\u003e mounts directly onto S500 terminal bases to establish high-speed backplane bus connectivity with AC500 CPU modules. Internal logic circuitry provides cyclic polling and optical isolation between the high-voltage AC field signals and the low-voltage backplane logic rails. The module maintains deterministic backplane communication velocity and flash firmware compatibility across the S500 bus structure, preventing backplane data loss during relay switching operations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 230 VAC digital inputs and relay output contacts share the same field supply circuit?\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided the voltage levels match the specifications. However, relay contacts and AC input channels are galvanically isolated, allowing independent AC or DC supply voltage sources for the output circuits.\u003c\/p\u003e\n\u003cp\u003eQ: Is hot-swapping supported for the DX531 module on an active S500 terminal base?\u003c\/p\u003e\n\u003cp\u003eA: No. Power to the S500 terminal base and external 230 VAC field circuits must be disconnected prior to inserting or removing the DX531 module to avoid electrical arcing or backplane damage.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSnap the module securely onto the corresponding S500 terminal base until the physical locking tab latches completely.\u003c\/li\u003e\n\u003cli\u003eRoute high-voltage AC input lines (115-230 VAC) and relay contact conductors separately from low-voltage DC backplane power cables.\u003c\/li\u003e\n\u003cli\u003eEnsure relay output channels operating inductive loads (such as contactor coils or solenoids) are fitted with external RC suppressors or varistors.\u003c\/li\u003e\n\u003cli\u003eVerify ambient operating temperatures around the DIN-rail mounting area remain within the 0 to +60 deg C range under continuous full-load operation.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45380995285107,"sku":"DX531","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/DX531.jpg?v=1787283211","url":"https:\/\/www.dcssupplier.com\/products\/abb-dx531-s500-digital-i-o-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}