W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

ERP-Gateway 2x Digital PoE

  • ERP-Gateway 2x2 Wayback

ERP/PPS system controls digital in-/outputs - simply, using the FTP user name

Use your system to open a standard FTP connection to the ERP Gateway and send the control command as a login name. After authenticating by the password, the output is immediately turned on or off.



  • 1x Ethernet 10/100BaseT autosensing
  • Galvanic isolation between the ports
    • Isolation voltage min. 1000V between digital IOs and network

Management and connectivity:

  • Switching using Wayback with any FTP client
    • Sending commands in the login name
  • Network connection:
    • 10/100BaseT autosensing, RJ45 with PoE
  • Web-based management
  • 6 V - 30 V digital industry-standard outputs
    • Current sourcing FET
    • 2-bit a 0.5A, grouping in 2’s for increasing switching current possible
    • short-circuit-protected by virtue of thermal safety fuse
    • programmable logic functions
    • pulse mode 2ms up to approx. 49 days
  • Digital industry-standard inputs
    • Type 1, current sinking in accordance with IEC 1131-2
    • Polarity reversal protected
    • Counter inputs for events (pulse width min. 1 ms)
    • 4 alarm conditions for SNMP traps and e-mail
  • Box-to-box mode
  • Additional software interfaces
    • FTP Wayback
    • HTTP, Web browser
    • AJAX, JavaScript and Java applet
    • TCP and UDP sockets, client and server
    • OPC server
    • SMTP (e-mail)
    • Syslog
    • SNMP (including trap)
    • FTP client (data logging)

Power supply:

  • External
    • Screw terminal connection 12V-24V AC/DC

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Worth knowing

Patented Wayback feature:
In addition to all the standard functions of the Web-IO® Digital, the ERP-Gateway 2x Digital PoE also includes the patented Wayback procedure. As a platform- and operating system-neutral software interface, the Wayback procedure enables even communication limited systems to directly switch outputs - without any additional software packages, drivers or special access rights to the file system. The only prerequisite is the ability to establish an FTP connection to the ERP gateway. The desired command is sent as the user login followed by a password, whereupon the ERP gateway switches the desired output - that’s it!

ERP/PPS systems such as SAP, Baan, PSI etc. can in this way, using a simple FTP login, send switching pulses to machines, PLCs or any other desired outputs without actual data transmission.

SAP application example
When a certain production quantity is reached, you need to use the SAP system to switch a light column to red. Without any additional, expensive software components a small ABAP procedure opens the FTP connection to the ERP Gateway when the event occurs and sends the command as a user login, whereupon the signal column is immediately switched to red.

Possible applications
Remote monitoring, automation technology, home and building technology and building visualization, process monitoring, photoelectric beam control, gate control, light barrier control, machine data acquisition, customer counting, fault indicators and much more.

(Wayback support for other Web-IO models on request)

Technical data

Connections and displays:

  • Network:
    • 10/100BaseT autosensing
  • Digital outputs:
    • 2 x Digital Out 6V-30V, 500mA
    • Short-circuit-protected
  • Digital inputs:
    • 2 x Digital In
    • max. input voltage +/-30V
    • Protected against polarity reversal within this range
    • Switching threshold 8V +/- 1V
    • "On" current = 2.2mA
    • integrated 32-bit counter
  • Connections:
    • 6 screw terminals for IO’s,
    • 2 screw terminals for device power supply
  • Protocol:
    • FTP Wayback procedure
    • TCP and UDP sockets, client and server
    • SNMP including traps
    • Syslog
    • SMTP e-mail sending
    • FTP client
    • OPC server
    • Inventory keeping, group management
  • Response times:
    • Data and switching traffic: typically 12 ms
  • IO supply using PoE:
    • 24V /max. 250mA
  • Galvanic isolation:
    • Digital-IO’s - Network: min. 1000V
  • Supply voltage:
    • DC 24V .. 48V (+/-10%)
    • AC 18Veff .. 30Veff (+/-10%)
    • Power-over-Ethernet (PoE)
  • Current consumption:
    • typ. 100mA@24V DC
  • Displays:
    • 1 LED Power
    • 1 LED Status
    • 1 LED Error

Housing and other data:

  • Housing:
    • Plastic housing for top hat rail installation
    • 105 x 22 x 75mm (L x W x H)
  • Enclosure rating:
    • IP20
  • Weight:
    • approx. 140g
  • Ambient temperature:
    • Storage: -25..+70°C
    • Operation: 0..+60°C
  • Scope of delivery:
    • ERP-Gateway 2x Digital,
    • Quick start manual
    • W&T product CD

    • Please order power supplies separately as accessories


  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 21.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 38.00€
    • Power supply for DIN rail, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 33.00€
  • Storage and Visualization

    • Motherbox 2
    • 50502
    • 298.00€
    • SD Data Station
    • 50541
    • 198.00€
    • FTP Data Station 2
    • 50542
    • 198.00€
  • Coupling relay for up to 230V

    • 230V coupling relay - 1 x changeover
      for DIN rail mount
    • 57015
    • 22.00€
    • 230V coupling relay - 2 x changeover
      for DIN rail mount
    • 57016
    • 22.00€
  • Mechanical Accessories

    • Mounting bracket for wall mounting
    • 58812
    • 11.20€
    • 19" DIN rail
    • 58813
    • 21.00€
    • Wall mount housing, enclosure rating IP66 / IP67
    • 11120
    • 54.00€
  • Software

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.