{"product_id":"1784-pcmk-allen-bradley-series-b-pcmcia-type-ii-communication-card","title":"1784-PCMK | Allen-Bradley | Series B PCMCIA Type II Communication Card","description":"\u003ch2\u003e\u003cstrong\u003eModule Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance, legacy communication interface card designed to link portable computers (laptops) to Allen-Bradley industrial networks. Utilizing a standard PCMCIA Type II slot, this card serves as the primary gateway for maintenance and programming of PLC-5, SLC 500, and ControlLogix systems over Data Highway Plus (DH+), DH-485, and Universal Remote I\/O (RIO) networks. Although classified as a discontinued\/obsolete product, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremains a vital tool for field engineers supporting established manufacturing facilities that rely on legacy Rockwell Automation networking protocols.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDetailed Engineering Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a highly specialized networking bridge, engineered for the deterministic requirements of industrial communication.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eForm Factor:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePCMCIA Type II Card\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSupported Networks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eData Highway Plus (DH+), DH-485, and Universal Remote I\/O (RIO)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBaud Rates:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e57.6k, 115.2k, and 230.4k bps (Network dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTested to 500V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Cables:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e* 1784-PCM5\/B (for PLC-5\/SLC 500 DH+)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1784-PCM6\/B (for SLC 500 DH-485)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1784-PCM2\/B and 1784-PCM4\/B (General purpose interface)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.6 Watts (Maximum)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePollution Degree 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOvervoltage Category II\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eESD Sensitivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHighly Sensitive (Requires static-safe handling)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.06 lbs (0.03 kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eNetwork Integration and Connectivity\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as a peer-to-peer node on the network. When configured correctly in RSLinx Classic software, it allows a laptop to act as a programming terminal, data collector, or HMI interface. The card’s Series B designation is significant, as it introduced enhanced compatibility with Windows-based operating systems and improved noise immunity for DH+ communications.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation and Driver Support\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eTo utilize the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e, the card must be inserted into a physical PCMCIA slot. In modern computing environments where these slots are no longer standard, users often attempt to use PCI-to-PCMCIA adapters or older \"Toughbook\" style laptops that retain the original hardware interface. The drivers are integrated into\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRSLinx Classic\u003c\/strong\u003e; however, newer 64-bit operating systems (Windows 10\/11) generally do not support the legacy drivers required for the PCMK card, often necessitating a dedicated \"maintenance laptop\" running 32-bit Windows XP or Windows 7.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical FAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1784-PCMK to connect to a modern Ethernet-based ControlLogix system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-PCMK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis strictly for serial-based legacy networks (DH+, DH-485, RIO). To connect to modern systems, you would use a standard Ethernet port or a 1784-U2DN for DeviceNet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 1784-PCMK and the 1784-U2DHP?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1784-U2DHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a modern USB-to-DH+ converter that serves as the functional successor to the PCMK. It is compatible with modern 64-bit operating systems and does not require a PCMCIA slot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is my card not being recognized in RSLinx?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is often due to an IRQ (Interrupt Request) conflict within the laptop's hardware settings. Legacy PCMCIA cards require a dedicated IRQ, which must be manually reserved in the Windows Device Manager to ensure the RSLinx driver can communicate with the card.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52457730146613,"sku":"1784-PCMK","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1784-PCMK.jpg?v=1773989629","url":"https:\/\/www.5gplc.com\/products\/1784-pcmk-allen-bradley-series-b-pcmcia-type-ii-communication-card","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}