Thermocouple, mV to Digital PLC interface DAT6011.
GENERAL DESCRIPTION
The DATEXEL DAT6000 series is an evolution in the connection of analog signals to digital PLC's.
The DATEXEL DAT6011 converts two non isolated Voltages (up to ± 1 V) or thermocouple signals to a digital PLC.
The DATEXEL DAT6000 series amplifies, linearizes, isolates, filters and converts the analog signals to a high resolution digital signal, by few and simple instructions downloaded into any PLC. It is possible to acquire more analog signals on one digital input.
The digital signal can be connected to any input of the PLC. The digital signal is composed of a series of 16 bits “word” containing the value of the analog inputs to acquire. The PLC controls the data transmission by a clock signal (CLK) generated from one of its output ports used to ask the device after the enabling of transmission by the enable signal (ENABLE). If the enable signal is high, at each rising edge of clock, the device will provide on the data line (DATA) one of the bits that composes the reading word.
Every cycle of reading is composed of 1 synchronism bit and 16 bits for each analog signal; this means that every reading is composed of 33 bits.
The rising edge of the ENABLE signal, managed from the controller, resets the cycle of reading and allows to avoid the reading of the unused input channels; the ENABLE signal can be used also to multiplex more devices to the same PLC's digital input.
The 2000 Vac isolation between inputs, power supply and data lines eliminates the effects of all ground loops eventually existing and allows the use of the converter in heavy environmental conditions found in industrial applications. The DAT 6023-V is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DATEXEL DAT6000 series is housed in a plastic enclosure of 12.5 mm thickness suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.
USER INSTRUCTIONS
Before to install the device, read carefully the section “Installation instructions”
Connect the power supply, the PLC and the analogue inputs as shown in the section Wiring.
If necessary, configure the device by the dip-switches available after opening the door on the side of the device as shown in the section “Programming table”.
The LEDs “PWR” and “DATA” show the state of working of the device; refer to the section “Light signaling” to check the condition of device.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The DAT6011 device is suitable for fitting to DIN rails in the vertical position.
For optimum operation and long life follow these instructions:
When the devices are installed side by side it may be necessary to separate them by at least 5 mm in the following case:
- If panel temperature exceeds 45°C device powered by an high power supply voltage: >27Vdc.
Make sure that sufficient air flow is provided for the device avoiding to place raceways or other objects which could obstruct the ventilation slits.
Moreover it is suggested to avoid that devices are mounted above appliances generating heat; their ideal place should be in the lower part of the panel. Install the device in a place without vibrations.
Moreover it is suggested to avoid routing conductors near power signal cables (motors, induction ovens, inverters, etc...) and to use shielded cable for connecting signals.
DIMENSIONS (mm)
CONFIGURATION
ISOLATION STRUCTURE
