IMO VXSM75-1 Instruction Manual page 109

(11) Data format 11
16-bit binary code, least increment 0.01,
positive/negative data (5-byte ASCII code)
19 18 17 16 15
ASCII code
(of minus sign
Example: In the case that M09 (output frequency) = +60.00 Hz
60.00 ¥ 100 = 6000 (dec.) = 1770 (hex.), hence:
1 7 7 0
➾
Positive data is handled in a 4-byte ASCII code similarly to data format 0.
• In the case that M09 (output frequency) = -60.00 Hz
60.00 x 100 = 6000 (dec.) = 1770 (hex.). An ASCII code of the minus sign is added at the top.: -1770
– 1 7
➾
(12) Data format 12
Data format for P04, A13 (auto tuning)
15 14 13 12 11 10
0 0 0 0 0
Unused (fixed to "0")
Communication
data
(P04 or A13)
Keypad panel
0000H ACK: However, no operation
0100H NAK
0200H NAK
0300H NAK
0001H NAK
0101H NAK
0201H NAK
0301H NAK
0002H NAK
0102H NAK
0202H NAK
0302H NAK
Note 1: Tuning is started upon a terminal block
operation command. After tuning is completed,
an ACK response is given. (The ACK response
is given before the terminal block is turned off.)
9-27
14 13 12 11 10
4-digit hexadecimal data➾ 4-digit ASCII code
7 0
9 8 7 6 5
0 0 0 0
Unused (fixed to "0")
Operation command
9 8 7 6 5
4 3 2 1 0
0 0 0
* *
Data field
H30 setting
0 or 1
Terminal block
ACK: However, no operation
NAK
NAK
NAK
Note 1
NAK
NAK
NAK
Note 1
NAK
NAK
NAK
Note 2: After data is written via RS485, tuning
is started. After tuning is completed, an ACK
response is given. (The operation command is
automatically turned off.)
4 3 2 1 0
2 or 3
RS485
NAK
ACK: However, no
operation
ACK: However, no
operation
NAK
NAK
Note 2
Note 2
NAK
NAK
Note 2
Note 2
NAK
Specifications