The WF-2026 is a multifunction module with Wi-Fi interface that includes 5 analog input channels, 2 analog output channels, 2 digital input channels and 3 digital output channels. It provides a programmable input range on all analog input (+/-150 mV, +/-500 mV, +/-1 V, +/-5 V, +/-10 V, +/-20 mA or 0 ~ +20 mA) and output range on all analog output (12-bit at +/-5 V, +/-10 V, 0 ~ +20 mA or +4 ~ +20 mA). Each analog input and output channel can be configured for an individual range and provides a high overvoltage protection of 240 Vrms. Analog Input and output can be jumper selectable as either voltage or current.

With the popularity of 802.11 network infrastructure, the WF-2026 makes an easy way to incorporate wireless connectivity into monitoring and control systems. The WF-2026 also supports Modbus/TCP and UDP protocols and the network encryption configuration, which makes perfect integration to SCADA software and offer easy and safe access for users from anytime and anywhere.


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    • Multifunction (5 AI, 2 AO, 2 DI and 3 DO)
    • Individual Channel Configuration
    • Jumper Selectable Voltage or Current Input/Output
    • Configurable Power-on and Safe Value Settings
    • Compatible with IEEE 802.11b/g standards
    • Support WEP, WPA and WPA2 wireless encryption
    • Support Modbus/TCP and UDP protocols
    • Support DHCP network configuration
    • Support DO/AO power on value & safe value mechanism
    • Overload and Short Circuit Protection for Digital Output
    • 240 Vrms Overvoltage Protection for Voltage Input
    • ±4 kV Contact ESD Protection
    • Built-in Watchdog

    Multi Platform Remote Access Software

    Real-time data from the WF-2000 I/O module can be accessed from anywhere and at any time using the WF-2000 Utility and iOS App.

    1. Download by iTunes
    2. App Store
    Search keyword: WF2000

    Requires iOS 8.1 or later. Compatible with iPhone, iPad, and iPod touch.s

    Hardware Specifications

    Analog Input
    Channels 5 (Differential)
    Input Range Voltage : ±150 mVDC, ±500 mVDC, ±1 VDC, ±5 VDC, ±10 VDC
    Current : 0 ~ +20 mA, +4 ~ +20 mA, ±20 mA (Jumper Selectable))
    Resolution 16 bit
    Accuracy ±0.1% FSR
    Sampling Rate 10 Hz (Total)
    Zero Drift ±20 μV/°C
    Span Drift ±25 ppm/°C
    Common Mode Rejection 86 dB Min.
    Normal Mode Rejection 100 dB
    Input Impedance Voltage 2 MΩ
    Current 140 Ω
    Overvoltage protection 240 Vrms
    Overcurrent Protection Yes, 50 mA @ 110 VDC
    Individual Channel Configuration Yes
    Analog Output
    Channels 2
    Output Range Voltage : +0 ~ +5 VDC, +0 ~ +10 VDC, ±5 VDC, ±10 VDC
    Current : +0 ~ +20 mA, +4 ~ +20 mA (Jumper Selectable)
    Resolution 12 bit
    Accuracy ±0.1% FSR
    Output Capacity
    Voltage Output Capability
    10 VDC @ 20 mA
    Power-on Value Yes, Programmable
    Safe Value Yes, Programmable
    Digital Input
    Channels 2
    Input Type Dry Contact: Source
    Dry Contact Level Off Voltage Level: Open On Voltage Level: Close to GND
    Photo-Isolation 3750 VDC
    Digital Output
    Channels 3, Sink(NPN)
    Output Voltage +3.5 VDC ~ +50 VDC
    Output Current 700mA per channel
    Intra-module Isolation, Field to Logic 3750 VDC
    Overvoltage Protection 60 VDC
    Short-circuit Protection Yes
    Power-on Value Yes, Programmable
    Safe Value Yes, Programmable
    Wi-Fi Interface
    Antenna 5 dBi (Omni-Directional)
    Output Power 8 dBm @ 11Mbps
    Receive Sensitivity -83 dBm @ 11Mbps
    Standard Supported IEEE 802.11b/g
    Wireless Mode Infrastructure & Ad-hoc
    Certifications CE/FCC, FCC IDs
    Encryption WEP, WPA and WPA2
    Transmission Range 50 meters (LOS)
    Intra-module Isolation, Field-to-Logic 3000 VDC
    Input Voltage Range 10 ~ 30 VDC
    Power Consumption 2.2W
    Installation DIN-Rail
    Dimensions 33mm x106mm x 120mm (W x L x H)
    Operating Temperature -25°C ~ +75°C
    Storage Temperature -30°C ~ +80°C
    Humidity 10% ~ 90%

    Ordering Informations

    WF-2026 CR
    5-channel Analog Input, 2-channel Analog Output, 2-channel Digital Input and 3-channel Digital Output Wi-Fi I/O Module (RoHS)