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IOM8400

                                                                 

          Product Model: IOM8400

          Overview:

          IOM8400 uses the mainstream ARM kernel 32 bit microprocessor, Modbus RTU and BACnet MS/TP supports two protocols (choose one), can realize the rapid expansion of I/O module controller.

 

          Protocol specification:

          1.Modbus support RTU protocol, can quickly realize the controller with the support of the implementation of the protocol of network connection, fast I/O port expansion. Please refer to the specific use of the Modbus RTU test tools.
          2.BACnet support MS/TP protocol, can quickly realize the controller with the support of the implementation of the protocol of network connection, fast I/O port expansion. Please refer to the specific use of the BACnet MS/TP test tools.

 

          Main Parameter:

         

 Processor 32 bit
 Clock Frequency  72MHZ
 Memory  64KB flash, 20KB random access memory 
 Power  DC/AC 24V
 Communication

 Modbus RTU(2.4k/4.8k/9.6k/19.2k)
BACnet MS/TP(9.6k/19.2k/38.4k/76.8k)

 Digital Input  Support dry contact input
 Digital Output  Support 24VDC  <3A

 

 

 

 

 

 

          Model specification: 

 Product Model

BI/DI 

BO/DO  

AI  

 AO

 IOM8400

 8

 4

 0

 0

 

 

 

          Product display :
         

 

          Register definition specification:
          1.Modbus RTU corresponding register 

              BI/DI---Input Status(0x02)

BI/DI Register Address

BI/DI 

Instruction

10001

 1

Digital Input Port

10002

 2

 Digital Input Port

10003

 3

 Digital Input Port

 10004

4

Digital Input Port

 10005

5

Digital Input Port

 10006

6

Digital Input Port

 10007

7

Digital Input Port

 10008

8

Digital Input Port

 

 

 

 

 

 

 

 

 

 

 

 

              BO/DO—Coil Status(0x01/0x05)

BO/DO Register Address

BO/DO 

Instruction

00001

 1

Digital Output Port

00002

 2

Digital Output Port

00003

 3

Digital Output Port

 00004

4

Digital Output Port

 

 

 

 

 

 

 

              AO—Holding Register(0x03/0x06)

AO Register Address

AO

Instruction

40001

-

Device address 1
(1-127)

40002

-

baud rate 9600
(19200/9600/4800/2400)

40003

-

Parity bit without
(0- no /1- odd /2-even)

 

 

 

 

 

 

 

 

 

          2.BACnet MS/TP corresponding register

              BI/DI

BI/DI Register Address

BI/DI 

Instruction

0

 1

Digital Input Port

1

 2

 Digital Input Port

2

 3

 Digital Input Port

3

4

Digital Input Port

4

5

Digital Input Port

5

6

Digital Input Port

6

7

Digital Input Port

7

8

Digital Input Port

 

 

 

 

 

 

 

 

 

 

 

              BO/DO

BO/DO Register Address

BO/DO 

Instruction

0

1

Digital Output Port

1

2

Digital Output Port,

2

3

Digital Output Port

3

4

 Digital Output Port

 

 

 

 

 

 

 

               AV

AV Register Address

AV

Instruction

0

-

baud rate 38400
(76800/38400/19200/9600)

 

 

 

 

          Common Question:

          1.ModbusRTU common question:

          Q ① : What is the default communication parameter for the module?
          A ① : ModbusRTU module default communication parameters are baud rate 9600, data bit 8, stop bit 1, no checksum, device default ID number is 1.
          Q ② : How to modify the communication parameters of the module?
          A ② :The use of third party software tool ModbusPoll, the control of the 3 register definition Instruction "section 40001, 40002, 40003, read three register data sequentially represents the device address, baud rate, parity check, modify according to" Instruction ", a list of parameters, communication module. After the power is restarted, the set parameters become effective.

          Q③: How to modify the device ID?
          A③: The hardware: toggle internal paddles.

Toggle No.

1

2

3

4

5

6

7

8

12

123

1234

12345

123456

1234567 

Device ID

1

2

4

8

16

32

64

128

3

7

15

31

63

127

 

 

 

 

          2.BACnet MSTP commnon question:

          Q ① : What is the default communication parameter for the module?
          A ① : BACnet MSTP module default communication parameters are baud rate 38400, data bit 8, stop bit 1, no checksum, device default ID number is 1.

          Q ② : How to modify the device ID (i.e., address)?
          A ② : The hardware: toggle internal paddles.

 

Toggle No.

1

2

3

4

5

6

7

8

12

123

1234

12345

123456

1234567 

Device ID

1

2

4

8

16

32

64

0

3

7

15

31

63

127


 

 

 

 

 
 
 
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