Ethernet-in-/output modules with 32 in- and 32 outputs (Optocoupler 2A)

A product identical in contruction with ralay may be found here ( -> RO-ETH-O32-R32 - Ethernet-input/output module with 32 inputs and 32 outputs (Relais 1A))

Ethernet-interface

Configuration over web interface

The ethernet module can be directly connected to a PC. That way, a direct access is given. It may be alternatively connected to a LAN. In case the LAN is accessible over the internet, the module is reachable worldwide. The configuration of the IP-address is done over the module's web interface, which is easily accessible by a browser. A provided API library in C allows an easily implement the module access in own programms.

Inputs

Visual monitoring of inputs

The state of every input is directly indicated by a LED. That way, wrong wiring is easily noticeable.

Detecting short input pulses

The module won't miss fast state changes, even if the inputs are sampled in larger periods. Fast state changes between two readout-cycles are detected through an additional logic and can be readout by software. A LED (combined for all inputs) indicates a "state change". The LED does not extinguish until the software register for input state changes is read out.

Counter

Every input channel has a 16 bit counter. Herewith the module "counts" additional events.

Input protection using optocoupler

The inputs have AC-suitable optocouplers. Therefore you don't need to pay attention to the polarity while wiring the inputs.

Input voltage

By default the inputs are designed for a voltage of 24V. They can be adjusted (even later) to 15V, 12V or 5V.

Relay Outputs

Relay-outputs (galvanically isolated, permanent load of 1A AC)

Relays ensure a save galvanic isolation of the outputs. They are designed for up to 36V/1A. Maximum switchable power is 20W.

Timeout-protection

If required, a timeout-protection may be enabled, switching automatically off the outputs to prevent damage. This takes place, when e.g. the communication gets lost. Switching off the outputs is indicated by a LED.

Outputs

Optocoupler-outputs (galvanically isolated)

Every output is realised in MOSFET-technology and is designed for a permanent load of 2A. The short-term load is over 2A (e.g. during switching-on currents). This enables to realize PWM motor-controls. Each MOSFET is controlled by a optocoupler to ensure a safe galvanic isolation.

Timeout-protection

If required, a timeout-protection may be enabled, switching automatically off the outputs to prevent damage. This takes place, when e.g. the communication gets lost. Switching off the outputs is indicated by a LED.

Connector

Easy to maintain connector system

The plug and socket consist of a multipoint socket connector and a multipin connector with a throw-off lever. Plug-in and plug-out is easy as well as rewiring the terminal strip. The wire connection itself is realized with a screwless connector system. A tool is included with each module.

Configuring the ethernet interface

Modules with 10/100 Mbit ethernet interface can be connected directly to a PC or to a network LAN. For configuration you can choose between two options.

1. Configuring using the DELIB Configuration Utility

Here you can change some basic options of the module.

2. Configuring by the internal Web-Browser

Here you can take advanced settings of the module.

Configuring by the DELIB Configuration Utility

DELIB Configuration Utility

DELIB Configuration Utility

Click to enlarge

If the default IP address of the module is not in the used network range, then the module can not be found over TCP/IP. Availability problems will also appear, if the IP address is already in use. But by using the DELIB Configuration Utility, the netmask and the IP address of the ethernet module can still be configured. Further, the module can directly be connected to the PC and be configured this way. After the accessibility is granted, further configuration is comfortably done by accessing the integrated web server.

Configuration using the module's integrated web-server

Web-Server

Web-Server

Click to enlarge

The internet module has it's own web-server via which the configuration may be done. Although the IP address and the netmask may be changed this way, much more can be configured than using the DELIB Configuration Utility.

Ethernet-Interface
Power Supply	7 to 24V DC (by a double-pole pluggable screw clamp)
Interface	10/100 Mbit Ethernet Configuration over web interface (IP-addr, netmask, ...) One LED for each 3,3V and 5V voltage feed
API-library	Easy to implement C library to access the inputs and outputs
Control-LED	Ethernet activity ERROR Input state change (only for digital outputs) Timeout (only for outputs) I/O Module access

Optocoupler-Input-Module
Inputs	32 Opto-In-Inputs Galvanic isolated using optocoupler 24V AC switching voltage (optional as well available for 15V, 12V, or 5V) 16 Bit-counter per input channel Logging of impulses between 2 read out cycles
Activity-LED	A LED for each input channel
Connectors	16 pin pluggable terminal block each 8 inputs

MOS-Output-Module
Outputs	32 Optocoupler outputs Galvanic isolated using Optocoupler max. permanent load of 2A DC max. switching voltage: 30V DC
Activity-LED	One LED for each output channel
Timeout-Function	Selectable timeout-protection, if the module is not longer adressed
Connectors	16 pin pluggable terminal block for each 8 outputs

General
Operating temperature	+10°C...+50°C
Dimensions	249 mm x 126 mm x 31 mm (lxwxh)

Controlling of our ethernet-modules

Our ethernet modules can be controlled by two different ways.

1. The Windows driver library DELIB

The DELIB driver library allows a direct communication with our modules. You don't have to worry about the TCP/IP protocoll. The driver library assumes it for you!

2. You may program the controlling software by yourself

In our download area you can find the specifications for our TCP-IP protocoll. By this way, our ethernet modules can be connected to small Linux computers or workstations for engineering, with LAN Interface.

Controlling by the DELIB driver library under Windows

The extensive but easy handling library is written for computer language, which responds to DLL's. Programming examples in source code for C, Delphi or Visual Basic can be found in our download area.

Examples for responsing our products with "C"

In the following example we show you in "C", how to access to our input modules in short time.

1. Step: Open the module

handle = DapiOpenModule(RO-ETH,0); //Open Ethernet-module

2. Step: Reading of 16 digital inputs

data = DapiDIGet16(handle, 0); // Read the first 16 digital inputs

3. Step: Close the module

DapiCloseModule(handle); // Close the module

The function "DapiOpenModule" is used to open a special kind of module. Which module should be openend, is defined by the two parameters. The first parameter is for the "module ID". By the integrated "DELIB.H", you can also set this parameter to "RO-ETH". So the driver library recognize, that an ethernet interface will be driven.

The second parameter assigns the module number. If only one module is connected to the pc, the module number is "0". Are there more than one module in the network, you have to set the correct number. The link to the according IP-address of the module can be configured by the "DELIB-Configuration Utility".

Testprogram with examples for digital inputs

Digital Input/Output Sample Testprogramm für Module

Digital Input/Output Sample Testprogramm für Module

Click to enlarge

With this program you can test our modules very easily. The digital input/output sample testprogram is easy to use and supports all of our measurement modules. The example above shows the test of a RO-USB-O32 input module.

Controlling by the open source ethernet protocol

If required, you can program your own controlling software. The according communication protocol for TCP/IP is disclosed. The modules will be controlled by register. Therefore we designed an open source communication protocol, which allows to respond to the modules and excecute read/write commands. The manual "Ethernet TCP Protocol" describes transmission and receiving frames, to communicate with our ethernet modules.

Overview about available DELIB-Functions

Plug connection

Screwless plug connectors

All input and output connectors have a practical, screwless terminal block. An mechanic ejection guarantees a very quick module change without any special tools. Wire connection happens with screwdriver or an included plastic pin. (s. pic.1)

Pic1:

Connection example of a RO-Module

		RO-MODULE
		Step 1: Push the plastic tool into the small notch at the side of the terminal block, to open the clamp contacts for the wire connection.
		Step 2: When you are looking into the wire hole, you can see, that the clamp contacts have been opened. The end of the wire should be bared 5-7mm. Now put it as deep as possible into the opened hole.
		Step 3: After that, pull the plastic tool out of the notch. The clamp is closed again now.
		Step 4: After correct connecting, pull out the wiring by hand isn't no more possible

Manuals

Driver / Programs

Downloads

Demo-Software