Siemens SINAMICS G110D Operating Instructions Manual page 180

Distributed converter
Hide thumbs Also See for SINAMICS G110D:
Table of Contents

Advertisement

Functions
6.11 Operation in fieldbus systems
Serial data transfer
The CTT2 protocol allows both cyclic and acyclic serial data to be transferred between
master and slave. The commands implemented to achieve this are as shown in the table
below.
Table 6- 66
CCT2 commands
Code (dec)
Code (hex)
0
0x00
1
0x01
16
0x10
80
0x50
144
0x90
17
0x11
81
0x51
145
0x91
18
0x12
82
0x52
146
0x92
19
0x13
83
0x53
147
0x93
29
0x1D
93
0x5D
157
0x9D
CTT2 Error Codes
In the event that an acyclic request cannot be successfully responded to the following
standard error codes are used.
Table 6- 67
Standard error codes
Error code
0
1
2
3
4
5
6
7
Vendor specific response errors contain an error object. This consists of the appropriate
standard error code followed by up to four bytes of optional further data. Inverters will not
use the optional extra data and so will transmit an error object of only one byte in length.
180
Command/Response
Read cyclic data from slave
Write cyclic data to slave
Standard read request
Standard read response ok
Standard read response error
Standard write request
Standard write response ok
Standard write response error
Vendor specific read request
Vendor specific read response ok
Vendor specific read response error
Vendor specific write request
Vendor specific write response ok
Vendor specific write response error
Vendor specific exchange request
Vendor specific exchange response ok
Vendor specific exchange response error
Description
no error
Illegal index
Illegal length
request not implemented
busy (request was not executed completely within time frame; try again later)
last acyclic request not acknowledged
Illegal sub index
Command "selective read request" is missing
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
Followed by
4 byte PWE data
4 byte PWE data
Index, length
Data
Standard error code
index, length, data
Standard error code
index, length
data
error object
Index, length, data
error object
index, read length, write
length, write data
read data
error object
SINAMICS G110D

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents