DeviceNet Slave Communication Module IFD9502 3 Functions of IFD9502 3.1 When IFD9502 is connected to Delta VFD series AC motor drive DVP28SV DVPDNET-SL Master Delta VFD series AC motor drive RJ12 DeviceNet RS-485 communication 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 2. Modifying parameters in AC motor drive in the configuration software invalid).
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.
DVP-PLC Application Manual 7 DVPDNET DVP28SV RUN STOP 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 I nstance ID LSB Instance ID LSB 4 I nstance ID MSB Instance ID MSB 5 Attribute ID Attribute ID 6 Service data LSB N/A 7 Service data MSB N/A