{"product_id":"alp121-s00-s1-yokogawa-centum-vp-profibus-module","title":"ALP121-S00 S1 Yokogawa CENTUM VP PROFIBUS Module","description":"\u003ch2\u003eYokogawa ALP121-S00 S1 PROFIBUS Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa ALP121-S00 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eALP121\u003c\/strong\u003e PROFIBUS Communication Module, operates as a dedicated hardware component for master-level data exchange with field devices within CENTUM VP control systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption \/ Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eALP121\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS-DP Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStandard Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlways 0\u003c\/td\u003e\n\u003ctd\u003eFixed Code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlways 0\u003c\/td\u003e\n\u003ctd\u003eStandard Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStyle Code\u003c\/td\u003e\n\u003ctd\u003eStyle 1 Hardware Revision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eALP121-S00 S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg (Net), 0.45 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.2 cm x 12.7 cm x 12.7 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.7 A @ 5 VDC backplane power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS-DP Master (EIA-RS-485 compliant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e1 port (D-sub 9-pin female connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e9600 bps to 12 Mbps (auto-detect \/ configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmission Distance\u003c\/td\u003e\n\u003ctd\u003e1.2 km (at 9600 bps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003eIsolated between field and system backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe ALP121-S00 S1 module establishes deterministic master communication across RS-485 physical layer networks, connecting CENTUM VP field control units to remote sub-nodes and Intelligent Field Devices. The interface isolation prevents field-side ground loops from propagating into the system backplane logic. Designed to handle high-density data integration, the module continuously polls PROFIBUS-DP slave devices while maintaining compatibility with 4-20 mA HART loop protocol gateways and fieldbus segment couplers for complete plant asset management.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is physical communication terminated on the ALP121-S00 S1 port?\u003c\/p\u003e\n\u003cp\u003eA: Communication connects through a standard D-sub 9-pin female connector, which requires an external PROFIBUS bus connector with integrated switchable RS-485 termination resistors at both segment endpoints.\u003c\/p\u003e\n\u003cp\u003eQ: Can the ALP121-S00 S1 module operate at its maximum transmission distance of 1.2 km at 12 Mbps?\u003c\/p\u003e\n\u003cp\u003eA: No, the 1.2 km maximum line distance applies specifically to the lowest baud rate of 9600 bps. Higher transmission speeds reduce allowable copper segment lengths according to standard PROFIBUS-DP wiring guidelines.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the ALP121-S00 S1 module vertically into an open I\/O slot of an ESB bus node unit or field control unit backplane. Verify that the node unit power remains switched off before module insertion to avoid backplane connector damage. Secure the module mechanically by tightening the upper and lower retaining screws. Attach a shielded PROFIBUS cable using a DB9 connector with built-in cable strain relief, and ensure the cable shield connects directly to the sub-D housing ground shell. Route signal lines away from high-voltage AC cables to limit electromagnetic interference along the RS-485 transmission path.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43838688886874,"sku":"ALP121-S00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/806.jpg?v=1786593472","url":"https:\/\/www.spareoil.com\/products\/alp121-s00-s1-yokogawa-centum-vp-profibus-module","provider":"SpareOil Automation","version":"1.0","type":"link"}