MCS Signal Conditioning Module
- Manufacturer: Nesa
- Category: Communication, Signal converters, Process signal to communication converters, INSTRUMENTATION
The NESA MCS is a single-channel module for conditioning digital and analog electrical signals. It accepts Pt100 signals, thermopiles, voltages up to 2Vdc (or micro-voltages, e.g., 0-100mV), currents 0-20mA or 4-20mA, frequencies up to 1000Hz, and pulse counts (min. 1ms) as inputs, and generates a standardized signal in 0-2Vdc voltage, 0-20mA or 4-20mA current, RS485 digital format, or Modbus over RS485.
It converts 18 bits (over 262,000 points) onto a differential input with <2µV accuracy across the entire scale. It operates on 10–30Vdc, typically consumes 4mA @ 12Vdc, and functions from -40°C to +80°C. This 2-unit DIN rail module complies with CE standards. It is programmable via a USB-MCS-I interface.
Key points
- Inputs: Pt100, thermopiles, voltages up to 2Vdc, currents 0÷20mA or 4÷20mA, frequency up to 1000Hz and pulse count (min. 1ms)
- Outputs: 0-2Vdc, 0-20mA, 4-20mA, RS485 and Modbus over RS485
- 18-bit resolution with over 262,000 points; accuracy <2µV across the entire scale
- Power supply 10÷30Vdc; typical consumption 4mA@12Vdc; -40°C÷+80°C
- Any input can be associated with any output, with zero and offset regulation
- DIN rail module, 2 units; compliant with CE standards
Technical Frequently Asked Questions
What is MCS?
A single-channel module for conditioning digital and analog electrical signals, which generates a standardized signal in voltage, current, RS485 or Modbus over RS485.
What signals does it accept at input?
Pt100, thermopiles, voltages up to 2Vdc (or micro voltages, e.g. 0÷100mV), currents 0÷20mA or 4÷20mA, frequency up to 1000Hz and pulse count (min. 1ms).
What options does it offer?
Voltage 0÷2Vdc, current 0÷20mA or 4÷20mA, RS485 (via command line) and Modbus over RS485. The RS485 is not isolated.
What is its resolution and accuracy?
18-bit resolution with over 262,000 points; accuracy <2µV across the entire scale.
How is it programmed?
With the USB-MCS-I interface, a USB/485 converter with included software that defines the linearization line with zero and offset.
What is the reference?
MCS: DIN rail module. The selected input and output types are indicated.
Properties
| Feature | Specification |
|---|---|
| Inputs and accuracy | |
| Product type | Single-channel module for conditioning digital and analog electrical signals |
| Differential input | With current generator for Pt100 |
| Temperature input | Pt100, thermopiles |
| Power input | Voltages up to 2Vdc (micro voltages, e.g. 0÷100mV) |
| Power input | 0÷20mA or 4÷20mA |
| Frequency input | Up to 1000Hz |
| Pulse count | Min. 1ms |
| Resolution | 18-bit with more than 262,000 points |
| Accuracy | <2µV across the entire scale |
| Departures | |
| Voltage output | 0÷2Vdc |
| Current output | 0÷20mA or 4÷20mA |
| Digital output | RS485 (via command line) |
| Modbus output | Modbus over RS485 |
| Real-time reading | With digital output, input signal values are sent directly to the RS485 line (not isolated) |
| Functions and programming | |
| Programming | USB-MCS-I Interface |
| Selection | Inputs on different scales and outputs, with the possibility of associating different measurement scale ranges |
| Regulation | Zero and offset |
| Input-output association | Once the electrical range and the type (analog or digital) of the input are defined, a standard output is chosen and a specific measurement range is associated with it. |
| Example | Pt100 signals with different ranges (e.g. -40°C to +60°C and 0 to +80°C) associated with the same output (e.g. 0 to 2Vdc), or the same input signal with different outputs |
| «Analog» counting systems» | Automatic reset when the imposed bottom-of-scale value is exceeded |
| Supply | Calibrated with extremely high precision systems and programmed according to the customer's specifications |
| Power supply, environment, and mechanical data | |
| Feeding | 10÷30Vdc |
| Consumption | Typical 4mA@12Vdc |
| Operating temperature | -40°C to +80°C |
| Container | Module for DIN rail, 2 units |
| Accordance | EC |
| Reference | Configuration |
|---|---|
| MCSMCS | Description: DIN rail module, pre-programmed for the conversion of input signals: Pt100, thermopile, voltages (micro-voltages 0-100mV) and currents or digital signals (frequency or count), and output signals: 0-2Vdc, 0-20mA, 4-20mA, RS485, Modbus RTU RS485. The selected input and output types are indicated. |
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