Read Command (03H) - Toshiba Tosvert VF-S15 Series Instruction Manual

5.1.1. Read command (03H)

 Computer → Inverter *The text size is 8 bytes fixed.
Inverter
Com-
mand
No.
03
1) Inverter No. (1 byte)
2) Command (1 byte)
3) Communication No. (2 bytes)
4) Number of data groups (2 bytes) : Set the number of data words 0001 (fixed) in the order of high to low numbers.
5) CRC16 (2 bytes)
 Inverter → Computer (Normal return) *The text size is 7 bytes fixed.
Inverter Com-
No. mand
03
1) Inverter No. (1 byte)
2) Command (1 byte)
3) Number of data
4) Read data (2 bytes)
5) CRC16 (2 bytes)
 Inverter → Computer (Abnormal return) *The text size is 5 bytes fixed.
Inverter
Command Error Code
No.
83
1) Inverter No (1 byte)
2) Command (1 byte)
3) Error code (1 byte)
4) CRC16 (2 bytes)
 Example: Reading output frequency (During 60Hz operation)
(Computer → inverter)
(Inverter → computer)
 Example: Data specification error
(Computer → inverter)
(Inverter → computer)
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Communication No. Number of Data
high low high
00
: ---
: Set the read command (03H fixed).
: Set in the order of high to low numbers.
: ---
Number Read data
of Data
high low
02
: ---
: Read command (03H fixed) will be returned.
: A number of data bytes (02H fixed) will be returned.
The number of data groups for transmission to the inverters is 2 bytes and 01H fixed.
: Returned in the order of read data (high) and (low).
: ---
CRC16
low
: ---
: 83H fixed (Read command error) (Command + 80H)
: See "5.3. Error codes".
: ---
01 03 FD 00 00 01 B5 A6
01 03 02 17 70 B6 50
01 03 FD 00 00 02 F5 A7
01 83 03 01 31
CRC16
Groups
low low
01
CRC16
low high
high
26
E6581913
high