{"product_id":"delta-ah10scm-5a-ah500-series-serial-communication-module","title":"DELTA AH10SCM-5A AH500 Series Serial Communication Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH10SCM-5A (AH10SCM5A)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance serial communication module designed for the Delta AH500 redundant rack-based PLC system. Engineered for complex multi-device networking, this module provides dual-channel RS-422\/485 connectivity, enabling the PLC to act as a central coordinator in large-scale industrial architectures. With a focus on system resilience, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH10SCM-5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures a full isolation design between power and signal circuits, ensuring that transient electrical noise from the field does not compromise the CPU's integrity. It is an essential component for applications requiring high-speed data exchange with Variable Frequency Drives (VFDs), sensors, and third-party instruments in sectors such as water treatment, HVAC (via BACnet), and smart manufacturing.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe AH10SCM-5A is a versatile Master\/Slave communication hub supporting high-speed transmission up to 460.8 kbps. It is equipped with two independent serial ports that can be configured for various protocols, including Modbus RTU\/ASCII and BACnet Slave. A key technical advantage is the \"UD Link\" (User Defined Link) capability, which allows engineers to customize communication formats for non-standard serial devices. Furthermore, the module supports hot-swapping, allowing for maintenance or replacement without shutting down the entire PLC rack, thereby maximizing system uptime in continuous processing environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAH10SCM-5A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDELTA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTaiwan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSerial Communication Module (RS-422 \/ RS-485)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 Ports\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Baud Rate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e460.8 kbps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.2 W (Internal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtocols\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eModbus RTU\/ASCII, BACnet Slave, UD Link, PLC Link\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull isolation (Power and Signal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-20 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHot-swapping, Automatic Data Exchange\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 kg (Shipping weight 2.0 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the AH10SCM-5A manage data exchange automatically without complex PLC ladder logic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module supports an \"Automatic Data Exchange\" function. Once the communication parameters and data addresses are configured in the software, the module handles the polling and data mapping between the PLC registers and the slave devices independently of the CPU scan cycle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with building automation systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. The AH10SCM-5A supports the BACnet Slave function, making it compatible with building management systems (BMS). This allows the AH500 PLC to report status and receive commands from higher-level HVAC and lighting control networks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the full isolation design in this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe full isolation design prevents ground loops and protects the internal PLC backplane from high-voltage transients that may occur on long-distance RS-485 field wiring. This is critical for maintaining communication stability in environments with heavy electromagnetic interference.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHot-Swapping Protocol:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen utilizing the hot-swap feature, ensure the module's locking levers are fully released before extraction. The AH500 backplane will automatically detect the removal; however, ensure that the \"Automatic Data Exchange\" settings are backed up in the CPU to allow the replacement module to resume operation immediately upon insertion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTermination Resistors:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor long-distance RS-485 networks (exceeding 100 meters), ensure that a 120-ohm termination resistor is enabled at both physical ends of the communication line. This prevents signal reflection and ensures data integrity at the maximum 460.8 kbps baud rate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielding and Grounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse shielded twisted-pair (STP) cables for all RS-422\/485 connections. The shield should be grounded at a single point (typically at the PLC cabinet side) to prevent circulating currents while providing effective protection against RFI\/EMI.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Delta Electronics","offers":[{"title":"Default Title","offer_id":53102419345771,"sku":"AH10SCM-5A","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/AH10SCM-5A-jf440osau3r.png?v=1776137205","url":"https:\/\/www.plcprotech.com\/products\/delta-ah10scm-5a-ah500-series-serial-communication-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}