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Toshiba TOSVERT VF-AS3 Instruction Manual page 20

Rs485 communication function
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5. 1
5. 1. 1
Specify data with a communication number, and describe the data format in hexadecimal and character
transmission with JIS-X-0201 (ASCII (ANSI)).
■ Computer -> inverter
Omittable for one-to-one communication
4
(3.5byte
"("
5
blank)
(28H)
1. "(" (1 byte)
2. INV-NO (2 bytes)
9
3. CMD (1 byte)
4. Communication number (4 bytes): Communication number -> Refer to [10. Parameter data]
5. DATA (0 to 4 bytes) : Write data (only available for W and P commands)
6. "&" (1 byte)
7. SUM (2 bytes)
8. ")" (1 byte)
9. CR (1 byte)
5. TOSHIBA inverter protocol
TOSHIBA inverter protocol transmission
format
ASCII mode transmission format
Communication
INV-NO
CMD
2 bytes
1 byte
4 bytes
Checksum range
: ASCII mode header code
: Inverter number (omittable for one-to-one communication)...
00 (30H, 30H) to 99 (39H, 39H), * (2AH)
A command is executed only when it matches the inverter number in
the parameter setting.
(When "*" is specified in broadcast communication, if the number
without "*" is matched, it is judged to be matched. If both of two digits
are "*", all connected inverters are judged to be matched.)
If the inverter number is mismatched or has one-digit, it is invalid, and
data is not returned.
: Command (-> Refer to "Command and data details" shown below)
: Checksum discrimination code (omittable) If the code is omitted, omit the
checksum as well.
: Checksum (omittable)
Add an ASCII coded number of the last two digits (4 bits/digit) of a total
sum (sum of ASCII codes) ranging from the header code to the checksum
discrimination code.
Example: (R0000&??)CR
If the checksum is omitted, omit the checksum discrimination code as well.
: End code (omittable)
: Carriage return code
Only for W or P command
DATA
No.
0 to 4 bytes
(26H)
28H + 52H + 30H + 30H + 30H + 30H + 26H = 160H
The checksum is the last two digits (??) = 60
5-2
Omittable
"&"
SUM
")"
CR
2 bytes
(29H)
(0DH)
Omittable
E6582143
(3.5byte
blank)
VF-AS3

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