Ebyte Ma02-xacx0440 User manual

【4AI + 4DO】

MA02-XACX0440

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Contents

Disclaimer............................................................................................................................................................. 4

1 Introduction........................................................................................................................................................5

1.1 Brief Introduction........................................................................................................................................5

1.2 Features....................................................................................................................................................... 5

2 Quick start.......................................................................................................................................................... 6

2.1 Preparation for use...................................................................................................................................... 6

2.2 Equipment wiring........................................................................................................................................6

2.2.1 Power wiring........................................................................................................................................ 6

2.2.2 Communication wiring RS232.............................................................................................................7

2.2.3 Overall wiring diagram........................................................................................................................ 7

2.3 Software settings......................................................................................................................................... 9

2.3.1 Device connection................................................................................................................................9

2.3.2 Equipment test....................................................................................................................................10

3 Product description...........................................................................................................................................11

3.1 Model Specification.................................................................................................................................. 11

3.2 Technical Parameter..................................................................................................................................11

3.3 Port Description........................................................................................................................................ 13

3.4 Dimensions................................................................................................................................................14

3.5 Installation method....................................................................................................................................14

4 Product Features...............................................................................................................................................15

4.1 Analog Input AI........................................................................................................................................ 15

4.1.1 Analog input AI description...............................................................................................................15

4.1.2 Analog input AI filter parameters...................................................................................................... 15

4.1.3 Analog input AI sampling range........................................................................................................15

4.1.4 Analog input AI raw value, engineering value.................................................................................. 16

4.1.5 Analog input AI calibration............................................................................................................... 16

4.2 Switch output DO......................................................................................................................................16

4.2.1 Switch output DO description............................................................................................................16

4.2.2 Switch output DO mode setting......................................................................................................... 17

4.3 Device address........................................................................................................................................ 17

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

4.3.1 Device address................................................................................................................................... 17

4.3.2 Hardware address (dip switch)...........................................................................................................18

4.3.3 Software address (offset address).......................................................................................................19

5 Port wiring........................................................................................................................................................20

5.1Analog input AI port wiring.......................................................................................................................20

5.1.1 Two-wire sensor wiring..................................................................................................................... 20

5.1.2 Three-wire sensor wiring................................................................................................................... 21

5.1.3 Four-wire sensor wiring..................................................................................................................... 21

5.2Switch output DO port wiring....................................................................................................................22

5.2.1 The output terminal directly controls the load (small power equipment within 1kW)......................22

5.2.2 Output terminal control contactor (contactor controls high-power....................................................22

220V equipment).........................................................................................................................................22

5.2.3 Output terminal control contactor (contactor controls high-power 380V equipment)...................... 23

6 Software use.....................................................................................................................................................24

6.1Software Installation.................................................................................................................................. 24

6.2Software function introduction.................................................................................................................. 25

6.2.1 IO demo interface...............................................................................................................................25

6.2.2Basic setting interface........................................................................................................................ 27

6.2.3Advanced settings interface............................................................................................................... 29

6.3Device status query.................................................................................................................................... 30

6.4Equipment status control............................................................................................................................31

7 Modbus use...................................................................................................................................................... 32

7.1 Register list........................................................................................................................................ 32

7.2AI related register list.................................................................................................................................34

7.3Instruction format (partial).........................................................................................................................35

7.3.1 Read DO output coil status................................................................................................................ 35

7.3.2 Read holding register......................................................................................................................... 35

7.3.3 Write a single holding register........................................................................................................... 35

7.3.4 Write multiple holding registers.........................................................................................................36

7.3.5 Write the status of a single DO coil................................................................................................... 36

7.3.6 Write multiple DO coil states.............................................................................................................37

7.3.7 Read input register............................................................................................................................. 37

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Revision history.................................................................................................................................................. 38

About us.............................................................................................................................................................. 38

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Disclaimer

EBYTE reserves all rights to this document and the information contained herein.

Products, names, logos and designs described herein may in whole or in part be

subject to intellectual property rights. Reproduction, use, modification or disclosure to

third parties of this document or any part thereof without the express permission of

EBYTE is strictly prohibited.

The information contained herein is provided “as is” and EBYTE assumes no

liability for the use of the information. No warranty, either express or implied, is given,

including but not limited, with respect to the accuracy, correctness, reliability and

fitness for a particular purpose of the information. This document may be revised by

EBYTE at any time. For most recent documents, visit www.ebyte.com.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

1 Introduction

1.1 Brief Introduction

MA02-XACX0440 supports the acquisition of 4-channel sensor

analog input (AI), which is converted to serial port (RS232) and data is

transmitted to configuration software or PLC. The serial port I/O

networking module (also called "remote IO") that realizes the remote

acquisition and control function by issuing commands through the serial

port to control 4 relay switch outputs (DO).

1.2 Features

★Support Modbus RTU protocol;

★Support various configuration software/PLC/touch screen;

★RS232 acquisition and control IO;

★DC 8～28V power supply;

★4 analog inputs AI (0～20mA/4～20mA);

★4 switch output DO (relay);

★Switch output (DO) supports level mode and pulse mode;

★Input collection port isolation protection;

★Communication baud rate 1200～115200 (default 9600), support custom setting;

★Supports 1～247 slave stations, 5-digit DIP switch can set 1～31 address code, more than 31 can

be set by software.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

2 Quick start

If there is a problem during use, click on the official website link:

https://www.ebyte.com/product-class.aspx

2.1 Preparation for use

Before using the serial port I/O networking device (hereinafter referred to as "IO device"), you need

to prepare a computer, converter, power supply, screwdriver and other related auxiliary materials.

details as follows:

Table 2-1-1 Preparation list

Serial

Number

Device

Quantity

IO device

USB to serial converter

Configuration tool software

Computer

Power adapter (12V/1A)

Screwdriver (Slot SL 2)

Signal generator (or sensor)

2.2 Equipment wiring

2.2.1 Power wiring

Power supply, using DC 8-28V power supply, can also use DC 12V or 24V power supply.

Figure 2-2-1 Power wiring diagram

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

2.2.2 Communication wiring RS232

Figure 2-2-2 Communication RS232 wiring diagram

2.2.3 Overall wiring diagram

(1) After the equipment is powered on, the power indicator (POWER) is always on, and the

equipment power supply is normal.

(2) Analog input AI wiring, connect the signal generator to the analog input AI port as shown in the

figure.

(3) Switch output DO wiring, connect the load to the switch output DO port as shown in the figure.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Figure 2-2-2 Overall wiring diagram

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

2.3 Software settings

2.3.1 Device connection

Figure 2-3-1 Software interface

Steps:

(1) Open the serial port, find the corresponding device port number, the baud rate defaults to

9600, and click ‘open serial port’.

Figure 2-3-2 Open the serial port

(2) In the device window, click ‘Search Device’, and the log window on the right will start to

refresh the search information. After the connected device is displayed in the device column

of the device window, click the "Stop Searching" menu. Then select the device and click, the

connection is successful.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Figure 2-3-3 Connecting the device

2.3.2 Equipment test

Figure 2-3-4 Equipment test

Figure 2-3-5 Actual test results

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

3 Product description

3.1 Model Specification

Table 3-1-1 Product specifications

Product Number

Specification

Switch input

Analog input

Switch output

RS485

RS232

MA01-AXCX4020

4DI+2DO

—

●

MA02-AXCX4020

—

●

MA01-XACX0420

4AI+2DO

—

●

MA02-XACX0420

—

●

MA01-AACX2220

2DI+2AI+2D

●

MA02-AACX2220

●

MA01-AXCX4040

4DI+4DO

—

●

MA02-AXCX4040

—

●

MA01-XACX0440

4AI+4DO

—

●

MA02-XACX0440

—

●

MA01-AACX2240

2DI+2AI+4D

●

MA02-AACX2240

●

MA01-XXCX0080

8DO

—

●

MA02-XXCX0080

—

●

3.2 Technical Parameter

Table 3-2-1 Technical parameters

Category

Name

Parameter

Power Supply

Operating

Voltage

Direct current 8～28V

Working

current

50mA @12V

Power indicator

Green LED indication

Serial Port

Communication

Interface

RS232

Baud rate

1200～115200 bps（default 9600 bps）

Data bit

8（fixed）

Check Digit

No parity, odd parity, even parity (no parity by

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

default)

Stop bit

1（fixed）

Protocol

Modbus RTU protocol

Device address

1～247(Default address 32: software 1,

hardware 31)

AI Input

AI channels

4 way

Collection

range

0～20mA / 4～20mA

Resolution

12 bits

Acquisition

accuracy

3‰

Acquisition

frequency

10 Hz

Acquisition

characteristics

Single-ended input

input resistance

100Ω

DO Output

Number of DO

4 way

DO output type

Type C relay (normally open + normally closed)

DO output

mode

Level mode, pulse mode

Relay contact

capacity

30V/10A、250V/10A

Output

indication

Red LED indication

Other

Product Size

115 mm * 90 mm * 40mm

(Length*width*height)

product weight

160g ± 5g

Working

temperature and

humidity

-40 ～+85℃、5%～95%RH(No condensation)

Storage

temperature and

humidity

-60 ～+125℃、5% ～95%RH(No

condensation)

Installation

method

Rail installation/location hole installation

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

3.3 Port Description

Figure 3-3-1 Interface diagram

Table 3-3-1 Port function table

Serial

number

Description

Remark

Power +

Suggest RVV 2*0.75 wire

﹣

Ground-

B/RX

RS232 corresponds to RX

(external connection needs

to be crossed)

Recommend RVSP 3*0.5

wire

A/TX

RS232 corresponds to TX

(external connection needs

to be crossed)

GND

Signal ground

COM

Input channel common

Recommend RVV 2*0.5

wire

AI1

Analog input channel 1

AI2

Analog input channel 2

AI3

Analog input channel 3

AI4

Analog input channel 4

DO1

Switch output channel 1

The relay has normally open

and normally closed

terminals

DO2

Switch output channel 2

DO3

Switch output channel 3

DO4

Switch output channel 4

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

3.4 Dimensions

Figure 3-4-1 Dimensions

3.5 Installation method

The equipment supports positioning hole installation or guide rail method.

Figure 3-5-1 Installation method

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

4 Product Features

4.1 Analog Input AI

4.1.1 Analog input AI description

The analog input AI measures the current signal, the acquisition range is 0-20mA or 4-20mA, the

accuracy is 3‰, and the resolution is 12 bits. Adopt single-ended input, sampling frequency 10Hz,

input impedance 100Ω.

4.1.2 Analog input AI filter parameters

The filter parameters of the AI channel can be set, the effective value is 1-16, and the default is 6.

Note:

(1) AI channel filter parameter is a filter parameter shared by all AI channels. The larger the filter

parameter, the stronger the anti-interference ability of AI sampling, but at the same time it has a

delay.

(2) AI channel filter parameter address is 0x04B0, and the register type is holding register. Function

code 0x06, 0x10. When writing AI filter parameters, if the written parameter value is not within the

range of 1-16, it will automatically take the closest value to write. If the write filter parameter is 0,

the device will take 1 as the filter parameter, and Modbus will not return. Wrong instruction.

4.1.3 Analog input AI sampling range

Set the sampling range of all AI channels, valid values are 1 and 0 (default 0).

0: Represents 0～20mA

1: Represents 4～20mA

(1) The AI sampling range is shared by all channels. When the AI channel sampling range is

configured for 4-20mA sampling, if the current signal is lower than 4mA, the engineering value of

the channel is converted to 0. For signals greater than 20mA, there is no conversion limit, but it

cannot exceed 25mA (there is a risk of equipment damage if it exceeds 25mA).

(2) AI channel sampling range parameter address is 0x04B2, register type is holding register,

function code 0x06, 0x10. When writing the AI channel sampling range parameter, if the value of the

parameter written is not within the range of 0 to 1, it will automatically take the closest value to write.

If the write sampling range parameter is 2, the device will take 1 as the sampling range parameter.

And MDOBUS does not return an error command.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

4.1.4 Analog input AI raw value, engineering value

There are two ways to read the magnitude of the current signal collected by the device:

Read the original value of AI and calculate the input current based on the input impedance.

The address of the AI original value register is 0x0000～0x0003, the register type is input register,

and the read function code is 0x04. The value returned by this method is 2 bytes representing a

channel, and the range of the value read is 0～4095. The method of calculating the current is 0～

4095 corresponding to 0～25mA.

The register type is discrete input register, and the read function code is 0x04.

which is

  

 󰇛󰇜

Read the AI engineering value and directly convert to get the input current.

The address of AI engineering value register is 0x0064～0x0067, the register type is input register,

and the read function code is 0x04. The value returned by this method is 2 bytes representing 1

channel, and the value read is 0 ～25000. The method of calculating the current is 0 ～25000

corresponding to 0～25mA. which is

  

 󰇛󰇜

4.1.5 Analog input AI calibration

When reading the AI measurement current, when the error is large, it can be calibrated by setting

the high point calibration register and low point calibration register of each channel.

Each channel of AI has an independent high (low) point calibration register. The address of the high

point calibration register is 0x0190～0x0193, and the address of the low point calibration register is

0x0258～0x025C. The register type is holding register, and the function code is 0x06, 0x10.

The calibration method can input an accurate current signal for the AI channel and write the value for

calibration. For example, if the AIx channel corresponding to the calibration device has an actual

input current of 20mA, then read the AI original value of the AIx channel and write the original value

to the high calibration register of the AI channel. Generally, the low point calibration can be set to 0

by default.

Note: This function calibration is only used when the error is large. It is not recommended under

normal circumstances.

4.2 Switch output DO

4.2.1 Switch output DO description

Switch output DO, with level mode, pulse mode, follow mode (only follow DI). Using C-type

relay output (normally open + normally closed), the single-channel output supports a maximum load

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

(contact capacity) of 30V/10A or 250V/10A.

Each DO output is designed with an output indicator (red LED indication) to indicate whether the

output port is on or off. When the LED indicator is on, it means the relay is closed (normally open on,

normally closed off); when the LED indicator is off, it means the relay is not closed (normally open

off, normally closed on).

Figure 4-2-1 Switch output DO interface

4.2.2 Switch output DO mode setting

(1) Level mode

Output according to the level set by the user. The switching characteristics of the level mode are

similar to the function of a self-locking switch.

(2) Pulse mode

After the switch output DO is turned on, the set pulse width time (in ms) is maintained, and the

switch output DO is automatically turned off. The pulse width setting range is 50～65535 (default

50).

(3) Follow mode

After the user sets the follow mode, set the follow input terminal. The switch output DO terminal is

consistent with the DI input terminal.

Note: Multiple switch output DO terminals can be set to follow one DI input terminal, and one

switch output DO terminal can not be set to follow multiple DI input terminals.

4.3 Device address

4.3.1 Device address

Device address composition: hardware address + software offset address

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Figure 4-3-1 Device address

The default device address is 32 (hardware address 31 + software address 1 = device address 32).

Device address setting range: 1～247.

Hardware address: realized by the dial switch (5 digits) dial setting (the factory default is 31).

Software address: It is realized by the "offset address" set by the configuration tool software (the

factory default is 1).

For example:

If the hardware address is set to 5 and the software address is set to 113, the device address is 118.

4.3.2 Hardware address (dip switch)

Figure 4-3-2 Hardware address (Dip switch)

Hardware address: The DIP switch can switch different hardware addresses, and the binary system

represents the 5-digit DIP switch. The "5" direction indicates the low position, and the "1" direction

indicates the high position. The hardware address range can be adjusted from 0 to 31.

Hardware address dialing setting instructions:

Example 1: Set hardware address 0, binary code.

Chengdu Ebyte Electronic Technology Co.,Ltd. 【4AI+4DO】MA02-XACX0440 User Manual

Figure 4-3-3 Hardware address 0

Example 2: Set the hardware address to 8, binary code.

Figure 4-3-4 Hardware address 8

Example 3: Set hardware address 31, binary code.

Figure 4-3-5 Hardware address 31

The hardware address can be customized according to the actual situation. The setting method is

shown in the above example.

If multiple devices are required to connect to a single RS232, only the hardware address is used, and

a single bus can be connected to a maximum of 32 devices (just set the hardware address).

If you need more than 32 devices to connect to a single RS232, you need to set the software address

(offset address) to realize a single bus to connect up to 247 devices.

After changing the address, you need to power off and restart the new address to take effect.

4.3.3 Software address (offset address)

Software address: The user can make different settings according to the scene. The software address

setting range is 1～224 (device address: 1～247), and the default software address is 1.

After changing the address, you need to power off and restart the new address to take effect.

To change the software address, it needs to be realized through the configuration tool software, as

shown in the figure:

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