Operation Mode "S7 Compatible - BONFIGLIOLI Vectron Agile Series Communications Manual

Handling of the Objects
To obtain access to parameters of inverters via the Systembus, parameter 1600 is written to the
desired Systembus node ID.
The data type of parameter 1600 is unsigned integer with a valid data range = 0 ... 63.
Parameter 1600 can be read and written.
16.2.2

Operation Mode "S7 Compatible"

A parameter is accessed by its parameter number and data set number. The valid range for parameter
number is 0 ... 1599, the range of data set number is 0 ... 9.
Note: For the handling of data set selection see chapter 16.1.4 "Parameters, Data Set Selection
and Cyclic Writing".
The S7-compatible Mode only allows the setting of the object
for reading/writing one parameter. The number of bytes to be transferred (read/write) depends on
the parameter's data type. In the case of a write cycle and an invalid number of bytes the CM-PDPV1
protocol reacts with an error message.
Step 1:
In the first step the desired parameter number, data set number and Systembus node ID are written.
This message is sent with
structure:
Data Structure for Index = 1:
Byte
Content
High Byte
Parameter number
Data Set
Systembus Address
Step 2:
The desired parameter data can now be read or written by sending a read or write request with
index
set to 2.
The parameter data structure is explained above.
06/2010
index
set to 1. The object to be sent has 4 bytes with the following
0 1
Parameter Number
= 0 .... 1599
= 0 .... 9
= 0 .... 63
Profibus DP V1 Agile
index
. There are two steps necessary
2
Data Set Number
Low Byte
3
Systembus
Address
33