USB-Module with 8 * PT100 Inputs (galvanically isolated)

USB-interface

Transfer rate

The supported standards are USB 2.0 and USB 1.1. The transfer rates are 12 MBit/s or 1,5 MBit/s.

USB-interface connection (galvanically isolated)

The connection of the module to the PC interface is done through a provided 3m USB adapter cable. The adapter ensures a safe galvanic isolation and allows a cable length of over 100m.

Inputs

Visual monitoring of inputs

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

• Activity LED (short blink for interface communication)
• Status LED (short blink when accessing PT100)
• Access LEDs for all PT100 inputs (short blink if PT100 sensor is connected. Permanent on when inputs are missing or a defective PT100 sensor is connected)

Detecting accurate temperature

Because of the 24 bit A/D converter, accurate measurements are possible. The PT100 modul is able to detect the change of the electrical resistance of the PT100 sensor. The resistivity is determined by an additional sensor cable and balanced, so that the use of a much longer cable is possible. Depending on the sensor the temperature rainge is from -200°C to 850°C.

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.

Configuration of USB modules

A configuration of a USB product is not needed - this complete the driver with their Plug and Play mechanism.

Working with several modules

Are more than one USB products working on a system, the driver library differentiate between these modules. Every brand new USB product has the ID "0". The ID can be changed by the DELIB-Configuratin Utility and will be stored in an EEPROM on the module.
So you can use up to eight identical modules on one pc.

Working with several modules on one pc

DELIB-Configuration Utility für USB Module

DELIB-Configuration Utility für USB Module

Click to enlarge

USB-Interface
Power Supply	7 to 24V DC (by a double-pole pluggable screw clamp)
Interface	USB (galvanically isolated using optocoupler) 9 pin. D-SUB socket connector USB 2.0 / USB 1.1 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	USB-activity ERROR Input state change (only for digital outputs) Timeout (only for outputs) I/O Module access

PT100-Modul
Inputs	8 * PT100-Inputs, galvanic isolated 24 bit A/D converter for accurate measurements Temperature range form 200°C - 850°C
Activity-LED	Activity LED (short blink on communication on the interface) Status LED (short blink on accessing the PT100) Access LEDs for all 8 * PT100 inputs (short blink if PT100 sensor is connected. Permanent on when inputs are missing or a defective PT100 sensor is connected)
Connectors	10 pin pluggable terminal block for 8 * PT100 channels

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

Functionality of the product.

Controlling by the DELIB DLL under Windows

The DELIB DLL allows a standard respond of all DEDITEC measurement modules. For this we provide all functions of our products to the software engineer.

Simple testprogram with example for digital inputs

Digital Input/Output Sample Testprogramm für Module

Digital Input/Output Sample Testprogramm für Module

Click to enlarge

With this tool you can test our products very easily. It is easy to handle and supports all modules of DEDITEC. The example above shows a test of a RO-USB-O32 input module.

Examples for responding 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-USB,0); // Open USB-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-USB1". 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 modules in the network, you have to set the correct number.

Controlling of more than one USB-module

Example for opening several modules on one pc:

Open a module with ID "1"

handle1 = DapiOpenModule(RO-USB1,1); // open USB-module with ID=1

Open a module with ID "4"

handle2 = DapiOpenModule(RO-USB1,4); // open USB-module with ID=4

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

Datasheets

Driver / Programs

Downloads