Delta Electronics DeviceNet Slave Communication Module IFD9502, Applications Manual

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DeviceNet Slave Communication Module IFD9502
DVP-PLC Application Manual 7
3 Functions of IFD9502
3.1 When IFD9502 is connected to Delta VFD series AC motor drive
DeviceNet
RJ12
Delta VFD series
AC motor drive
RS-485 communication
DVP28SV
DVPDNET-SL
DVPDNET DVP28SV
RUN
STOP
Master
1. Baud rate and the setting of communication format
Before connecting Delta AC motor drive to the BUS, first set up the node address of the AC motor drive as 01,
baud rate as 38,400bps and communication format as 8, N, 2; RTU (the format is fixed; other formats will be
invalid).
2. Modifying parameters in AC motor drive in the configuration software
When the configuration software is used for modifying a parameter in AC motor drive, IFD9502 will read the
maximum value, minimum value and read/write attribute of the parameter and decide if the value modified by
the user falls within the modifiable range and whether to modify the parameter.
3. Reading and modifying parameters
z IFD9502 allows you to inquire Delta AC motor drive by explicit messages. The format of rthe inquiry is
shown in the table below.
Byte position Data written into AC motor drive Data read from AC motor drive
0 Frag [0]+XID+MAC ID Frag [0]+XID+MAC ID
1 R/R [0]+Service code [0x10] R/R [0]+Service code [0x0E]
2 Class ID [0x0F] Class ID [0x0F]
3 Instance ID LSB Instance ID LSB
4 Instance ID MSB Instance ID MSB
5 Attribute ID Attribute ID
6 Service data LSB N/A
7 Service data MSB N/A