Wiren BoardDocumentation
Device manual · English

WBE2-DI-DR-3

3-channel dry-contact input expansion module

revision 112535
Covered order codes (1)
  • WBE2-DI-DR-3

Front of the WBE2-DI-DR-3 module
Front of the WBE2-DI-DR-3 module
Back of the WBE2-DI-DR-3 module
Back of the WBE2-DI-DR-3 module

Module overview

A three-channel module for connecting sensors and meters with dry-contact or open-collector outputs.

Logic 0: the input is floating.

Logic 1: the input is connected to the controller ground (GND), either directly or through a resistance of no more than 300 Ω.

The module has no hardware pulse-counting function. Pulse counting can be implemented in software, or by using a WB-MCM8 module. Example wb-rules rules: Counting pulses on a digital input.

Technical specifications

Parameter Value
Minimum detectable pulse width 12 ms
Maximum pulse frequency 40 Hz
Warranty 2 years
Service life 8 years

Expansion module terminals:

Terminal Function
O1 Input 1
O2 Input 2
O3 Input 3

Installation

When modules are ordered together with a Wiren Board controller, the manufacturer installs them at the factory. You only need to configure the modules in the controller web interface .

If you purchased the modules separately, install them as follows:

  1. Open the controller enclosure.
  2. Install the module with the correct polarity: its locating tab must enter the slot on the controller PCB.


The module is compatible with all revisions of the Wiren Board 6, Wiren Board 7 and Wiren Board 8 controllers, subject to the compatibility table below:

Module and controller connector compatibility
Model WB6.3-6.6 WB6.7/WB7 WB8.4 WB8.5
MOD1 MOD2 MOD3 MOD1 MOD2 MOD3 MOD4 MOD1 MOD2 MOD3 MOD4 MOD1 MOD2 MOD3 MOD4
WBE2-DI-DR-3 + + - + + + - + + + - + + + +
Remove the obstructing tab on the Wiren Board 6.7–8.x controller enclosure
Remove the obstructing tab on the Wiren Board 6.7–8.x controller enclosure

When installing the module in the MOD3 connector of a Wiren Board 6.7–8.4 controller, or in the MOD4 connector of a Wiren Board 8.5 controller, remove the obstructing tab on the controller enclosure using cutters or a file.

Configuration

Access permissions

User configuration
User configuration


The access level depends on the user account. Users authenticate with a username and password. To change the controller settings, your account must have the following access level: Admin. User accounts are managed under Settings → Users. See User authentication and authorization.

In releases earlier than wb-2602 there are no user accounts; the access level is configured under Settings → Permissions.

Configuration

Configuring expansion modules in the Wiren Board controller web interface
Configuring expansion modules in the Wiren Board controller web interface

After physically connecting the module, add it to the controller configuration:

  1. In the web interface, open Settings → Configs → Expansion modules and ports and select the Internal slot in which the expansion module is installed.
  2. In the Module type list, select the name of the installed module.
  3. Click Save. The controller will enable the ports required by the module.

To remove a module from the configuration, select Not installed.

Controller integration

WBE2-DI-DR-3 controls in the web interface
WBE2-DI-DR-3 controls in the web interface
Slot Terminal Input Channel (MQTT) Topic (MQTT) GPIO name
MOD1 O1 IN1 wb-gpio/MOD1_IN1 /devices/wb-gpio/controls/MOD1_IN1 MOD1 TX
O2 IN2 wb-gpio/MOD1_IN2 /devices/wb-gpio/controls/MOD1_IN2 MOD1 RX
O3 IN3 wb-gpio/MOD1_IN3 /devices/wb-gpio/controls/MOD1_IN3 MOD1 RTS
MOD2 O1 IN1 wb-gpio/MOD2_IN1 /devices/wb-gpio/controls/MOD2_IN1 MOD2 TX
O2 IN2 wb-gpio/MOD2_IN2 /devices/wb-gpio/controls/MOD2_IN2 MOD2 RX
O3 IN3 wb-gpio/MOD2_IN3 /devices/wb-gpio/controls/MOD2_IN3 MOD2 RTS
MOD3 O1 IN1 wb-gpio/MOD3_IN1 /devices/wb-gpio/controls/MOD3_IN1 MOD3 TX
O2 IN2 wb-gpio/MOD3_IN2 /devices/wb-gpio/controls/MOD3_IN2 MOD3 RX
O3 IN3 wb-gpio/MOD3_IN3 /devices/wb-gpio/controls/MOD3_IN3 MOD3 RTS

Hardware revisions

The batch number is printed on a label on the side of the enclosure or on the PCB.

Revision Batches Release date Changes from the previous revision
3.4 v3.4A, v3.4B, v3.4C, v3.4D - ... 10.2023 - ...
  • Enlarged the cutout in the PCB outline for compatibility with WB7.4.
3.3 v3.3A, v3.3B, v3.3C 10.2022 - 10.2023
  • Changed the PCB outline for compatibility with WB7
  • Uses EL3H7-G optocouplers
3.2 v3.2A, v3.2B, v3.2C, v3.2D, v3.2E, v3.2F, v3.2G, v3.2H 08.2020 - 10.2022
  • Changed the PCB outline for compatibility with WB6.7
3.1 ... Before 08.2020
  • First version
Revision 112535.