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Emerson ec20 series plc, Emerson ec20, Series – Delta Electronics Network Device DOP-A/AE/AS User Manual

Page 29

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

1-28

Revision January, 2008, Doc. Name: 2007PDD23000007

Emerson EC20 Series PLC

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A. HMI factory setting

Baud rate: 19200, 8, Even, 1 (RS-232).

PLC station number: 0.

Control area/status area: D0 / D10.

B. Definition of controller Read/Write address

Registers

Read/Write Range

Register Type

Format

Word No.

Bit No.

Data Length

Data Word

Dn

n: 0-7999

N/A

Word

Special Data Word

SDn

n: 0-255

N/A

Word

Data Word

Zn

n: 0-15

N/A

Word

Timer Tn

n:

0-255

N/A

Word

Counter Cn

n:

0-199

N/A

Word

DoubleWord Counter

CDWn

n: 200-255

N/A

DWord

DoubleWord Data Word

DDWn

n: 0-7998

N/A

DWord

Contacts

Read/Write Range

Contact Type

Format

Word No.

Bit No.

External Output Relay

Yb

N/A

b: 0-377(Octal)

External Input Relay

Xb

N/A

b: 0-377(Octal)

Internal Relay

Mb

N/A

b: 0-1999

Special Internal Relay

SMb

N/A

b: 0-255

Status Relay

Sb

N/A

b: 0-991

Timer Tb

N/A

b:

0-255

Counter Cb

N/A

b:

0-255

NOTE

PLC Communication Settings:

1) Emerson EC20 series PLC has two communication ports, COM0 and COM1. They are provided for the

communication protocol for connecting to PC, Modbus communication protocol and user-defined

protocol. The default setting is COM0 to be enabled only, so the user needs to set the communication

mode as Modbus RTU via PC software before using it.

2) COM1 supports RS-232 and RS-485.