Connector Description
The device has two terminal blocks. The first one contains two redundant pairs of power supply pins. The second one is for connecting the digital inputs. It has a total of eight pins - a positive and ground pin for each input.
Device States
Through its runtime, the device can get into multiple states, each of which is indicated by the green status LED.
DHCP Behavior
The device offers both DHCP client and server functionality. Whether the device acts as a server is chosen based on the network settings. This table depicts the DHCP role of an interface, if DHCP is enabled for it:
HTTP API
The device host an HTTP server with an API on port 80. All requests have to be authenticated using HTTP Basic Auth. The user name will always be. The password is by default, but it is configurable using the option. The API can be disabled using the settings option.
Modbus Registers
The counted data can be read out from the device through Modbus TCP. There are eight holding registers in total - 2 for each channel. One holds the number of activations of the channel, the other one the number of deactivations.
Power Supply
The device supports two methods of power supply. Either through the onboard Mini USB-B connector (mainly used for development purposes), or through the dedicated power supply pins of the terminal block. The power supply pins accept a voltage between 9V and 28V. A power supply preference system is in place. If both means of power supply are connected at the same time, the device will be powered through the dedicated power supply pins.