Efficient Networks S120 manual Activity, Information about the parameter request

Communication PROFIBUS DP/PROFINET IO

10.1Communications according to PROFIdrive

2.Invoke the request.

3.Evaluate the response.

Activity

1. Create the request.

Parameter request			Offset
Request header	Request reference = 25 hex	Request ID = 01 hex	0 + 1
	Axis = 02 hex	No. of parameters = 01 hex	2 + 3
parameter address	Attribute = 10 hex	No. of elements = 08 hex	4 + 5
	Parameter no. = 945 dec		6
	Subindex = 0 dec		8

Information about the parameter request:

●Request reference:

The value is selected at random from the valid value range. The request reference establishes the relationship between request and response.

●Request ID:

01hex ––> This identifier is required for a read request.

●Axis:

02hex ––> Drive 2, fault buffer with drive- and device-specific faults

●No. of parameters:

01hex ––> One parameter is read.

●Attribute:

10hex ––> The parameter values are read.

●No. of elements:

08hex ––> The current fault incident with 8 faults is to be read.

●Parameter number:

945dec ––> p0945 (fault code) is read.

●Subindex:

0 dec ––> Read access starts at index 0.

2. Invoke the parameter request.

If STW1.3 = "1" ––> Invoke parameter request 3. Evaluate the parameter response.

Parameter response			Offset
Response header	Request reference mirrored	Response ID = 01 hex	0 + 1
	= 25 hex
	Axis mirrored = 02 hex	No. of parameters = 01 hex	2 + 3

400	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4