Modbus (slave) --- rtu / ascii mode – Delta Electronics Network Device DOP-A/AE/AS User Manual
Page 103

Delta DOP Series HMI Connection Manual|DOP-A/AE/AS Series
1-102
Revision January, 2008, Doc. Name: 2007PDD23000007
Modbus (Slave) --- RTU / ASCII mode
A. HMI factory settings
Baud rate: 9600, 7, EVEN, 1. (ASCII)
9600, 8, EVEN, 1. (RTU)
Controller station number: 0. (Station number is not used in the protocol.)
Control area/status area: W40100 / 40200.
NOTE
1) HMI station number is Slave station number. (default setting is 0)
2) The relation between Modbus address and HMI internal registers.
Modbus address
Data definition in HMI
W40001 ~ W41024
$0 ~ $1023
Internal register
W42001 ~ W43024
$M0 ~ $M1023
Non-volatile internal register
W44001
RCPNO
Receipt number register
W45001 ~ ...
RCP0 ~ RCPn
Receipt register
B00001 ~ B01024
$2000.0 ~ $2063.15
Internal register (Bit)
B01025 ~ B02048
$M200.0 ~ $M263.15
Non-volatile internal register (Bit)
B. Definition of controller Read/Write address
Registers
Read/Write Range
Register Type
Format
Word No.
Bit No.
Data length
Output Registers
Wn
n: 40001 ~ 50000
N/A
Word
Contacts
Read/Write Range
Contact type
Format
Word No.
Bit No.
Discrete Outputs
Bn
N/A
n: 1 ~ 2048
C. Connections (Connector Pinouts)
Please refer to 1.1 Pin Definition of Serial Communication for detail.