ABB FPBA-01 Manual de usuario descargar pdf (Pagina 94)

Communication

Table 20. PROFIdrive Request header

Field(s) Description Range

Byte/

Word

Request

Reference

Unique identification set by the master.

Changed for each new request.

1 … 255 Byte

Request ID Request type for the issued block. Request

Parameter (01h)

Change

Parameter (02h)

Byte

Axis To be set to 0 or 1. 0 … 255 Byte

No. of

Parameters

Number of parameters that are present

in the request.

1…37 Byte

Attribute Type of object being accessed.

Note: “Text” is not supported.

Value (10h)

Description (20h)

Text (30h)

Byte

No. of

Elements

Number of array elements accessed or

length of string accessed. Set to 0 if

non-array parameters are used.

0, 1 … 234 Byte

Parameter

Index

Address of the parameter that is being

accessed. “0” is allowed by FPBA-01.

1 … 65535 Word

Subindex Addresses the first array element of the

parameter or the beginning of a string

access or the text array, or the

description element that is being

accessed.

0 … 65535 Word

Format* See Table 22. See Table 22 Byte

Number of

Values*

Number of values following. 0 … 234 Byte

Values* The values of the request. In case of

odd number of bytes, a zero byte is

appended to ensure the word structure

of the telegram.

– See

Format

field

*Only if Request ID is 02h (Change Parameter). The Format, Number of Values

and Values fields are repeated for other parameters.

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 125 126

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