Siemens SINAMICS S120 Manual - Halaman 32

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8 Drive Parameter Access

Drive Parameter Access

8.1

In many applications it is necessary to read or write parameters in the drive. This

allows increased flexibility in implementation of the machine functionality.

To allow this occasional (acyclic) data exchange of drive and motor parameters,

the CU310-2 PN and Cu320-2 PN support explicit messaging.

The MSG instruction can read from or write to a parameter by accessing the drive's

communication object. When parameterizing the MSG instruction, below are some

important parameters:

Class = 400hex + drive object number

DO 1

DO 2

...

DO62

Instance = parameter number

p1027 = instance 1027

Attribute = parameter index number (hex)

Index 0

Index 1

...

Index 65535

Get attribute single = read a parameter

Set attribute single = write a parameter

SINAMICS S: Speed control of a S120 with an Allen-Bradley controller

(Compact/ ControlLogix with RSLogix 5000) via EtherNet/IP

Entry-ID: 92045369,

V4.0,

= class 401h

= class 402h

= class 43Eh

= attribute 0

= attribute 1

= attribute FFFFh

08/2018