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Delta DOP Series HMI Connection Manual|DOP-A/AE/AS Series
1-102 Revision January, 2008, Doc. Name: 2007PDD23000007
Modbus (Slave) --- RTU / ASCII mode Back to Table
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.