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3-2
Serial Communications
690+ Series Frequency Inverter
File Transfer
When you perform a SAVE CONFIG, the settings for all parameters (except motor and frame
size specific parameters) are written to a Configuration file. Settings for motor and frame size
specific parameters are written to the file "MOTOR1.MOT".
Drives using Software Version 5.x onwards can transfer these files between the drive and a PC.
For further information about Configuration files, refer to the Installation Product Manual,
Chapter 5: "The Operator Station" - Saving/Restoring/Deleting Your Application.
Protocol Description
The file transfer protocol is supported by the EI ASCII communications. Connection from the
PC is made to either the Operator Station port (P3), or the RS232 programming port (P3) which
is located on the control board.
There are two new mnemonics: FR for read and FW for write. Both these commands have the
same format:
Address [STX] Mn
[FS] action
[GS] block_no [RS] ‘ascii_block_data
[GS] ‘file_name [RS] file_length [RS] >file_protected_flag
[ETX] [BCC]
Where:
[STX]
is the start of text code, 0x02
Mn
is the mnemonic, either FR (read) or FW (write)
[FS]
is the field separator, 0x1C
Action
is an integer value. This specifies the action. 0 for start transfer, 1 for continue
transfer, -1 for end transfer.
[GS]
is the group separator, 0x1D
Block_no
is an integer. It is set to 0 at the start of a data transfer and increments by one
for each block received.
[RS]
is the record separator, 0x1E
Ascii_block_data
is an ascii field. It contains up to 64 ascii characters, (equivalent to
32 bytes of hex data).
File_name
an ascii field. It is the name of the file to read or write.
File_length
is an integer value. It is the length of file data that is to be written to the
file store or was read from the file store. This is the length of binary data and should be
half the total number of ascii hex file data bytes transferred
File_protected_flag
is a boolean value and may take the value of 0 or 1. A value of 0
indicates that the file is not protected. A value of 1 indicates that the file is protected.
At present, protected files may not be read from the drive so a value of 1 will never be
returned.
[ETX]
is the end of text code, 0x04
[BCC]
is the binary check character, the value depends on the message contents.