Mstr transaction #4 – Yaskawa VS-616G5 Modbus Plus Communication Card User Manual

Page 71

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Examples 9-27

MSTR Transaction #4


The Control Block registers for the fourth MSTR must be loaded with the following data before the
MSTR block is executed. This MSTR writes to E1-01 through E2-05.

CONTROL BLOCK

Register

Number

Register

Description

Register

Data

Data

Description

40630

Operation Code

0001h

0001h = Write to Multiple Registers

40631

Network Error Code

0000h

The error code returned by Modbus Plus
communications

40632

Number of Registers

0017h

Write to 23 consecutive registers

40633

Data Register Code

0300h

0300h = start of Ex-xx parameters

40634

Routing 1

0003h

Modbus Plus node address of drive = 0003h

40635

Routing 2

0001h

End of routing path = 0001h (Modbus Plus
requirement)

40636

Routing 3

0000h

This routing register is not used, must be set to 0

40637

Routing 4

0000h

This routing register is not used, must be set to 0

40638

Routing 5

0000h

This routing register is not used, must be set to 0


DATA BLOCK

Register

Number

Register

Description

Register

Data

Data

Description

40640

E1-01

WRITE

Input Voltage Setting

40641

E1-02

WRITE

Motor Selection

?

?

?

?

40657

E2-04

WRITE

Number of Motor Poles

40658

E2-05

WRITE

Motor Line-to-Line Resistance


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