Allen-Bradley Data Highway Plus (DH+) Gateways & Converters
Seamlessly connect modern PCs, SCADA, and Ethernet/IP networks to legacy PLC-5 and SLC 5/04 systems. Our premier alternatives to the discontinued 1784-U2DHP and 1756-DHRIO are in stock and ready for overnight shipping.












Our Products
ANC-100e: Allen-Bradley DH+ to Ethernet Converter
Direct Connectivity: Interfaces major SCADA, HMI, and PLC programming via Controllogix Ethernet/IP driver.
Legacy Support: Unlimited access to DH+ networks, PLC-5, and SLC 5/04 processors.
Smart Configuration: Features Web Interface, Auto Polarity, and Auto Baud Rate Detection.
Quick Setup: One easy step with your IP address setup starts node communications.
- Direct Drop-in Replacement: Similar replacement features as Controllogix 1756-DHRIO / 1756-ENBT, AB 1784 Interface Cards (1784-U2DHP, 1784-KTx, 1784-PKTx, 1784-PCMK), and Prosoft AN-X2-AB-DHRIO Converters.
Expert Review: Ethernet to DH+ Converter by The Automation Blog
ANC-120e: USB to AB's DH+ PLC Programming Cable
High-Performance USB to DH+ Adapter: An economical, industrial-grade USB-to-Allen-Bradley Data Highway Plus (DH+) converter operating at blazing 12 Mbps USB speed.
Premier 1784-U2DHP Alternative: Significantly outperforms and serves as the ultimate drop-in replacement for the discontinued Allen-Bradley 1784-U2DHP PLC Programming Cable.
Broad Network Compatibility: Provides direct PC USB access to legacy DH+ networks, easily communicating with PLC-5 and SLC 5/04 stations.
Seamless Software Integration: Utilizes the standard Controllogix Ethernet/IP Driver to interface with all major HMI, SCADA, MMI, and PLC programming packages.
Supported Automation Platforms: Works flawlessly with RSLINX/LOGIX Classic & Enterprise (RSLOGIX 5/500), Wonderware DAServer & TCP/IO Server, Citect, and Kepware.
Technical Review of the ANC-120e by The Automation Podcast
What's New Allen-Bradley DH+ App Notes
Panelview 7 Plus to DH+ App Note
Jan 2023: ANC-100e / ANC-120e Panelview 7 Plus to DH+ Application Note.
IGS Server Application Note
August 2021: ANC-100e / ANC-120e IGS (Industrial Gateway Server) Application Note.
RSLinx & FactoryTalk Configuration Note
July 2020: ANC-100e/ANC-120e RSLinx Enterprise /Factory Talk Linx Configuration with SLC 5/04s & PLC-5s Application Note
Wonderware FSGateway (OIGateway) App Note
ANC-100e/ANC-120e Wonderware FSGateway now known as OIGateway, EthernetIP to DH+ Application Note