The NET-DEV-OPTO-IN8-REL8 module has 8 digital inputs and 8 digital outputs with up to 3A switching capacity. It serves as an extension possibility for the NET-CPU basic modules and is integrated into an existing NET system by means of Plug’n Play plug connection (DIN Rail-Bus).
- 8 digital outputs: up to 48V / 3A
- 8 digital inputs: 15V – 30V AC/DC (optional 5V – 15V or 30 – 50V)
- 16 bit counter per channel (up to 10kHz) with latch function
- Filter for counter / flipflops adjustable from 5ms – 255ms
- Timer Function
- Timeout protection shutdown
Digital inputs
With our optocoupler inputs, digital signal states can be recorded within a voltage range of 5V to 30V AC or DC. Input and output circuits are galvanically isolated from each other up to 2.5kV.
Digital In Input Filter
With our Digital-In modules, an input filter can be set in a time interval of 1ms…255ms to filter interference pulses.
This means that AC signals can also be detected cleanly.
Counter
Each input has a 16 bit counter that can count up to 65535 pulses. If the maximum counter value is exceeded, the counting process starts again from zero. By means of a software command, the current status of all input counters can be read from the module simultaneously.
Recording of status changes
Status changes that occur between the readout cycles are reliably detected by internal flip-flops and can be read out separately by software. In addition, such an event is signalled by a status LED. Resetting is done automatically after the flip-flops have been read out.
Digital outputs
Relay 3A
Power relays with normally open (NO) function are used as digital output. They are suitable for switching capacities up to 3A and have a life time of up to 10 million switching cycles. The galvanic isolation between input and output circuit is up to 3kV.
Timeout-protection-function [Single channel adjustable new feature since Q4/2020!]
If communication with the DEDITEC module is interrupted in a timeout case, the timeout protection function takes effect. It can be set for each digital output whether it is to be “switched off”, “switched on” or left unchanged. Motors can thus be switched off in a timeout case, for example, and connected horns or other alarm transmitters can be switched on.
New timeout modes [New feature since 2021/Q3!]
3 different timeout modes: “normal”, “auto reactive” and “secure outputs” for different procedures in case of a timeout event.
In “secure outputs” timeout mode, access to the outputs is blocked after a timeout event, thus preventing further access to the outputs.
Unlocking must be done by an additional software command.
Timer Function
All digital outputs of the NET series have a timer function. This allows the outputs to be switched on and off automatically for a freely definable period of time. Even if the connection to the control PC is interrupted.
Easy installation thanks to DIN rail bus
Thanks to the practical NET-Bus connector, which is clipped into the top-hat rail, individual modules of a system can be added or exchanged very easily. This Plug’n Play principle makes commissioning easier and eliminates the need for tiresome wiring.
LEDs
On the front side of our NET modules there are a number of status LEDs. These give you a quick overview of the most important functions of the modules, such as the switching states of the individual I/Os, module status or whether clean communication via the DIN rail bus is possible. This can be very helpful for fast error analysis, especially for field applications.
Connectors
A screwless system from the manufacturer WAGO Kontakttechnik is used as the connector. The 1-wire female connectors are 100% protected against mismating and have an eject and locking mechanism. All conductor types up to 1.5mm² can be connected.





















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