Eaton easyE4 User Manual

5. Programming on the device
5.7 Using operands in a program
5.7.6 Organizing marker ranges
The term "marker" is used to represent marker bits (M). Marker bits (M) are used to
store the Boolean states 0 or 1. A marker bit is also called an auxiliary relay.
easyE4 devices also manage the marker bits in marker bytes (MB), marker words
(MW) and in marker double words (MD). A marker byte consists of 8 marker bits, a
marker word of 16 marker bits and a marker double word of 32 marker bits.
In order to store the state for a contact, you can use a specific bit and, accordingly a
specific byte as well. For instance, marker bit 9 is included in marker byte 2, marker
word 1, and marker double word 1. You can use the following conversion table to
determine which word contains a bit or which bits encompass a specific double
word.
Bear in mind that after the division, a rounding up to the next higher integer is neces-
sary, even if the decimal number is below 0.5.
The easyE4 has 1024 bytes available for data storage.
This data memory can be accessed by bit, byte, word, or double word.
This means that four different operands with their own address can be used to
access the exact same data range. Accordingly, it is extremely important to pay
close attention to each operand's address in order to avoid accidental duplicate
access.
Markers can be used to access data as follows (with the corresponding address
range):
l
M 1...512
l
MB 1...512
l
MW 1...512
l
MD1...256
Avoid accidental double marker assignments.
Otherwise you might address the 512 bit markers sim-
ultaneously via the first 64 marker bytes, 32 marker words or
16 marker double words and thus produce uncontrollable
states. When write accesses are made successively within
an MD, such as to MD1, MW2, MB4 or M32, the last write
operation is retained.
Observing the following wiring rules will prevent the double assignment of
marker bits.
For easyE4, use:
Marker bytes, starting at MB13
Marker words, starting at MW07
Marker double words, starting at MD04
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easyE402/24 MN050009ENEaton.com

Eaton easyE4 Specifications

General

Mounting	DIN Rail
Protection Class	IP20
Number of Digital Outputs	Up to 16
Number of Analog Inputs	Up to 8 (depending on configuration)
Number of Analog Outputs	Up to 2
Communication Ports	Ethernet, RS-232, RS-485
Programming Software	easySoft
Programming Languages	Ladder Diagram (LD), Function Block Diagram (FBD)
Power Supply Voltage	24 V DC
Operating Temperature	+55 °C
Dimensions	90 x
Memory	128 kB program memory

Summary

Before starting with the installation

Installation requires qualified electrician

Safety requirement for installation, emphasizing the need for a qualified electrician.

Verify isolation from the supply

Ensuring the device is safely disconnected from the power supply before proceeding.

1. Description of easyE4 control relay

1.1 Use as intended

Defines the intended applications and purpose of the easyE4 control relay.

1.8 easySoft 8 programming software

Details about the programming software used for easyE4 devices.

1.9 Safety regulations

General safety rules and mandatory requirements for handling the device.

2. Installation

2.1 Prerequisites for the location of use

Requirements for the installation environment and location of use for the device.

2.3 Mounting

Instructions and guidelines for physically mounting the easyE4 control relays and expansions.

2.4 Connection terminals

Details on terminal types and connection procedures for easyE4 devices.

3. Commissioning

3.1 Initial commissioning

Step-by-step guide for the initial setup and commissioning of the easyE4 device.

3.5 Establishing an Ethernet connection and transferring a program or visualization project

Procedure for establishing an Ethernet connection and transferring projects.

3.8 Updating firmware

Instructions for updating firmware on base devices, expansion devices, and communication modules.

4. Operation

4.1 Base device with display and buttons

Details on operating base devices with displays and buttons.

4.2 Operating modes of the easyE4

4.5 Your first EDP program

4.6 Transfer program to the easyE4 device

Options for transferring programs to the easyE4 device via memory card or Ethernet.

5. Programming on the device

5.4 Working with contacts and coils

5.5 Transferring programs from and to a microSD memory card

6. Function blocks

6.1 Manufacturer function blocks

Pre-defined solutions for common programming tasks, including timer, counter, and arithmetic functions.

6.2 Interrupt function blocks

6.3 UF - User function block

7. System settings

7.1 System options - Base device with display and buttons

7.5 NET

7.6 Ethernet

7.7 Update

Procedures for loading new firmware onto easyE4 devices and communication modules.

7.9 Setting the startup behavior

Defining how the easyE4 device responds upon power-up.

7.13 Retention function

7.14 Security – password protection

Setting up passwords and password-protected areas.

8. How easyE4 works internally

8.1 Program execution

Explains how programs are executed using LD, FBD, ST, and EDP languages.

8.4 NET network

9. Operating system diagnostic messages

9.1 Diagnostic messages easy communication module

9.2 Transistor outputs (overload / short-circuit)

10. easyE4 communication Connection to other devices

10.1 Secure communications with easyProtocol V2

10.2 Secure communications via HTTPS (encrypted)

10.6 Compatibility rules for going online

10.7 Establish a connection to the device

Step-by-step guide to establishing an online connection with the easyE4 device.

10.9 Setting up a connection to multiple devices on the NET

10.11 Secure communication with certificates

Ensuring secure communication using certificates for easyE4 devices.

10.14 Using the web client

10.15 Setting up the e-mail function

Configuration of email alerts for events like errors or operating state changes.

10.16 easy communication modules

10.17 Modbus TCP

Details on configuring Modbus TCP client and server settings for easyE4.

11. Faults

11.1 Messages from the operating system

11.2 Possible situations when creating programs

11.5 Issues related to the microSD memory card

12. Maintenance

12.1 Cleaning and maintenance