Goodrive600 series high-performance multifunction VFD
Communication networking
-180-
IRT channels are implemented through the built-in Switch-ASIC IRT chip. IRT communication can further shorten the
processing time of the communication stack software, synchronizing data transmission of the program and device.
The transmission delay is less than 1 ms, and the jitter is less than 1
μs. The typical application is motion control.
6.6.2 Communication packet structure
6.6.2.1 PROFINET packet format
Table 6-28 describes the structure of an RT frame (non-synchronous).
Table 6-28 RT frame structure
Data
header
Ethernet
type
VLAN
Ethernet
type
Frame
identifier
RT
user
data
Period
counter
Data
state
Transmission
state
FCS
2 bytes
2 bytes
2 bytes
2 bytes
36
–
1440
bytes
2 bytes 1 byte
1 byte
4 bytes
0x8100
0x8892
VLAN flag
APDU state
Data header
7-byte
preamble
1-byte synchronization
information
6-byte source MAC
address
6-byte destination MAC
address
Table 6-29 describes the structure of the IRT frame (synchronous).
Table 6-29 IRT frame structure
Data header
Ethernet
type
VLAN
Ethernet
type
Frame
identifier
IRT
user
data
FCS
7-byte
preamble
1-byte
synchroniz
ation
6-byte
source
MAC
address
6-byte
destination
MAC
address
2 bytes
2 bytes 2 bytes
2 bytes
36
–
1440
bytes
4 bytes
6.6.2.2 PROFINET packet data structure
The PROFINET communication card supports 16-word input/output. Figure 6-7 shows the packet format for transmitting
data with the VFD
Parameter
identification
(PKW)
Process data
(PZD)
Free allocated
zone
PKW1
PKW2
PKW3
PKW4
CW
SW
PZD2
PZD3
PZD2
PZD3
PZD12
PZD12
Fixed
zone
Figure 6-7 Packet structure
By using the 32 inputs/outputs, you can set the reference parameters of the rectifier/inverter unit, monitor the state
values, transmit control commands, monitor the running state, and read/write the function parameters. For specific