26 I/Os: 16 INPUTS & 10 OUTPUTS

The CPU with 26 Digital and Analog I/Os can handle tons of small-scale applications and you can easily expand it for your medium-size projects, upgrading your product capabilities thanks to the Digital and Analog expansions that allows you to connect more sensors and other high-end inputs and outputs.
Add up to 2 expansions to the CPU to get up to 46 I/OS.

Configurable analog inputs

The first Nano-PLC with up to 12 analog inputs that allows you to directly connect high-end industrial sensors and other signal as:

• 4-20mA: for high-end industrial sensors for water treatment
• LDR: direct connection of LDR light sensors (No converter required)
• NTC: direct connection of NTC temperature probe (No converter required)
• 0 to 10V: to control with direct voltage or potentiometers
• VCC or Voltmeter: to monitor battery status or other power sources

Digital inputs and configurable high-speed inputs

4 of the 16 digital inputs can handle high-speed counting of up to 60 KHz allowing you to connect

• Rotary Encoders: for motor position control like in access control barriers, packaging machines
• Counters and meters: for high-speed counting, water and gas flow metering, etc
• Industrial Tachometer: to calculate the speed of industrial motors

Digital outputs

Control up to 10 different devices with the following output types:

• 2 Relay Outputs of 6 Amps
• 6 Relay Outputs of 8 Amps
• 2 Static/SSR PWM Outputs for:
• Analog actuators like valves and pumps control
• Analog actuators via external converters from PWM to 0-10V or 4-20mA
• Motor speed control with AC and DC drives

Ethernet (modbus TCP/IP) communication

The em4 embedded Ethernet communication allows you to create a complete and optimized distributed automation solution:

Use em4 as a client to monitor and control up to 16 devices like HMIs, motor drives, smart sensors, power meters, logic controllers and even other em4s.

Use em4 as a server to communicate with networks like SCADA or be controlled by HMIs and other PLCs. Either as a client or server, em4 can fully interact with up to 7 other em4s using labeled names instead of IP addresses.

Program and debug your application in the network.

Control and monitor your application at a distance with Virtual Display. Learn More

Send and receive event notifications and recorded datalogs via email.

Modbus RTU communication

Use Ethernet and Modus RTU at the same time!
Connect with HMIs, motor drives, other controller and other devices via Modbus RTU while at the same time you keep everything connected to your Ethernet Network.

This is possible due to Modbus RS485 Client and Server interfaces:

Modbus RS485 P
Polarized

Modbus RS485
Not Polarized

Bluetooth communication

• Get easy access to hard accessible panels by controlling and monitoring your em4 wirelessly and from a distance via the Crouzet Virtual Display.
• Program and debug your software from a distance.
• Download recorded datalogs to your PC, laptop and mobile devices.

Bluetooth Interface

Learn more about Bluetooth Interface

Easiest to use and most intuitive software

• Easiest and most intuitive visual programming software based on drag and drop function blocks (FBD).
• Save time with the already pre-programmed application blocks like pump management, flow control, liquid level and many more.
• With Crouzet Soft you can edit & program your em4 either at your desk with USB or remotly through Ethernet or Bluetooth, even if already installed in your application, no need to remove it or disconnect any wires.

Give it a try now!

Smart Design

A PLC in a Logic Controller Body

• Due to its modular shape, em4 can be also used in distribution or modular panels
• You easily can use it as DIN Rail mount or convert it to Panel mount by sliding the screw tabs located in the back
• You can remove the front cover of the product side to put your own tag for a better organized panel or even put your logo if your are an OEM
• You can completely remove the label holder to see only the screen and control buttons on a modular panel
• The interchangeable interfaces allows you to quickly add Bluetooth, Modbus RTU or USB capabilities.

Embedded screen & control buttons

The screen and control buttons embedded to the CPU allow quick user access to parameters

Screen:
With the high-contrast LED screen you can choose between the black or whit background

6 configurable buttons:
Each button can be configured for a different function that allows to manually execute a specific action

Crouzet Virtual Display

Use it via Bluetooth, Ethernet or USB to:

• Read the product screen and use the buttons to change parameters remotly from your PC, laptop or mobile devices
• Keep control of your applications by reading recorded datalogs
• Transfer your program to em4 to set-up or update your applications without having to remove it or disconnect any wires

Continuously monitor your applications

Datalog

• Measure and record key parameters of your installation
• Periodically receive datalogs in .csv file, by email, or by FTP

Event

• Program regular email notifications
• Choose the events you need to monitor
• Get regular status updates or alarm notifications

FTP Server

• Collect datalog sent by product
• Re-use data in a customized visualization space