Delta DVP16SP11R: DVP Series I/O Modules,

Technical Dossier

Product Details And Specifications

Delta DVP Series: Comprehensive Module Range and Technical Overview

The Delta DVP Series programmable logic controller platform is one of the most widely deployed compact PLC families in heavy industrial environments across Asia, the Middle East, and Eastern Europe. Installed in chemical processing plants, petrochemical refineries, water treatment facilities, and power distribution substations, the DVP Series has accumulated a substantial installed base since its commercial introduction in the early 2000s. Its modular backplane architecture, support for standard ladder and structured text programming via ISPSoft, and broad I/O expansion capability have made it a reference platform for OEM machine builders and system integrators operating under IEC 61131-3 compliance requirements. The DVP16SP11R specifically is a 16-point mixed I/O expansion module — 8 digital inputs (24V DC) and 8 relay outputs — designed for direct right-side expansion on DVP-SS2, DVP-SE, DVP-SX2, and DVP-SA2 series CPUs.

The Evolution of DVP Series Architecture

The DVP Series was introduced by Delta Electronics (Taiwan) circa 2002 as a cost-optimized alternative to Mitsubishi FX and Omron CP1 platforms. The first generation — DVP-ES and DVP-EH — established the core backplane bus protocol and 24V DC I/O standard. The second generation introduced the DVP-SS2 (slim form factor), DVP-SA2 (analog-capable), DVP-SX2 (high-speed pulse), and DVP-SE (Ethernet-native) CPUs, each retaining backward-compatible right-side expansion bus pinout. This compatibility means that expansion modules such as the DVP16SP11R, DVP08SM11N, and DVP04AD-S are interoperable across multiple CPU generations without firmware modification. The third generation introduced the DVP-ES3 and DVP-EH3 with USB programming ports, CANopen master capability, and expanded memory. As of 2024, the DVP-ES/EH first-generation CPUs are in end-of-life status; Delta Electronics has designated the AS Series (AS200, AS300) as the strategic successor platform. However, the DVP expansion I/O modules — including the DVP16SP11R — remain in active production and are supported through Delta's global spare parts program.

DVP Series Full Catalog & Functionalities (SKU List)

Digital I/O Expansion Modules

• DVP16SP11R: 8DI / 8DO relay, 24V DC input, right-side expansion module
• DVP16SP11T: 8DI / 8DO transistor NPN output, 24V DC, high-speed compatible
• DVP08SM11N: 8-point digital input module, NPN sink, 24V DC
• DVP08SM11P: 8-point digital input module, PNP source, 24V DC
• DVP08ST11R: 4DI / 4DO relay output, slim expansion, 24V DC
• DVP32SM11N: 32-point digital input module, NPN, high-density I/O expansion
• DVP16SM11N: 16-point digital input module, NPN sink type
• DVP16SN11T: 16-point transistor NPN output module, 0.5A per point
• DVP16SN11R: 16-point relay output module, 2A per point, 250V AC rated

Analog I/O Modules

• DVP04AD-S: 4-channel analog input, 12-bit resolution, 0–10V / 4–20mA selectable
• DVP02DA-S: 2-channel analog output, 12-bit, voltage/current dual mode
• DVP04DA-S: 4-channel analog output module, 12-bit resolution
• DVP06XA-S: 4AI / 2AO combination analog module, 12-bit
• DVP04PT-S: 4-channel PT100/PT1000 RTD temperature input module
• DVP04TC-S: 4-channel thermocouple input module, K/J/T/E/R/S/B type

Communication & Special Function Modules

• DVP-F232: RS-232 communication expansion module, Modbus RTU master/slave
• DVP-F485: RS-485 communication module, multi-drop network support
• DVPEN01-SL: Ethernet communication module, Modbus TCP, 10/100 Mbps

Sourcing Hard-to-Find & Obsolete DVP Series Parts

DriveKNMS maintains a dedicated inventory program for the Delta DVP Series, with particular focus on first-generation DVP-ES and DVP-EH CPU units and their associated expansion modules. As Delta Electronics transitions its installed base toward the AS Series, end-users operating legacy DVP-based systems in continuous-process industries — where control system replacement carries significant downtime risk — require a reliable source for both current-production and discontinued modules. DriveKNMS sources DVP Series components through authorized distribution channels and verified secondary market suppliers. All units are subject to pre-shipment inspection. For obsolete or long lead-time SKUs including DVP-EH00-E2, DVP32EH00R2, and first-generation DVP-ES2 CPUs, DriveKNMS provides cross-reference consultation and equivalent substitution guidance. Lifecycle extension support contracts are available for plant operators requiring guaranteed supply continuity beyond Delta's official support window.

Quality Control for the DVP Series Range

DVP Series modules use a proprietary right-side expansion bus that carries both power and serial communication signals on a shared 20-pin connector. Counterfeit and refurbished-without-disclosure units in this product family frequently exhibit degraded bus termination resistance and non-compliant relay contact ratings. DriveKNMS applies the following verification protocol to all DVP Series inventory: (1) Visual inspection of PCB revision markings and Delta holographic label authentication; (2) Powered bus communication test using a reference DVP-SS2 CPU to confirm module recognition and I/O point addressing; (3) Relay output load cycling test at rated current (2A resistive) for DVP16SP11R and relay-output variants; (4) Analog module calibration verification against NIST-traceable reference signals for DVP04AD-S, DVP04PT-S, and DVP04TC-S; (5) Final functional test under 24V DC supply within Delta-specified voltage tolerance (20.4–28.8V DC). Units that fail any stage are quarantined and not released for sale.