Delta Electronics DOP-A/AE/AS Guía De Conexión

Delta DOP Series HMI Connection Manual|DOP-A/AE/AS Series 

Revision January, 2008, Doc. Name: 2007PDD23000007 

 

 

1-99 

Baud rate:  9600, 7, EVEN, 1. (ASCII) 

 

9600, 8, EVEN, 1. (RTU) 

Controller station number: 0. 

Control area/status area: RW-0 / RW-10. 

 

1)  The valid communication address starts from 0 and the format is hexadecimal. So the settable range are 

0 to 65535 (i.e. 0 ~ FFFF in hexadecimal format). 

2)  The difference than “Standard Modbus” communication: (Protocol is the same) 

The usage of setting communication address is different. 

The range of communication address is different 

The “Standard Modbus” communication is in decimal format. The start addresses are 40001, 30001, 1, 

10001 and contains 10000 addresses respectively (40001 ~ 50000, 30001 ~ 40000, 1 ~ 10000, 10001 ~ 

20000). 

The Modbus Hexadecimal Address (Master) is in hexadecimal format. The starting addresses are all 

from 0 and there is 65536 addressing space (from 0 to FFFF) in each PDU (protocol data unit). 

Read/Write Range 

Register Type 

Format 

Word No. 

Bit No. 

Data length 

Output Registers 

RW-n 

n: 0 ~ FFFF 

N/A 

Word 

Input Registers 

R-n 

n: 0 ~ FFFF 

N/A 

Word 

¾

  RW- : can Read and Write.  

Converting the address to decimal format and plus 40001, it will immediately become the corresponding 

“Standard Modbus” communication address. 

¾

  R- (Input Registers) : Read only.  

Converting the address to decimal format and plus 30001, it will immediately become the corresponding 

“Standard Modbus” communication address.