Toshiba TOSVERT VF-S11 Gebrauchsanleitung
E6581222
4
2. Data transmission specifications
Items
Specifications
Transmission scheme
Half-duplex
Synchronization scheme
Start-stop synchronization
Communication baud rate
1200/2400/4800/9600*/19200 bps (selectable using a parameter)
*1
Communication protocol
TOSHIBA Inverter Protocol * / MODBUS-RTU
Character transmission
<ASCII mode> JIS X 0201 8-bit (ASCII)
<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits
<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits
Stop bit length
Received by inverter: 1 bit, Sent by inverter: 2 bits
*3
Error detecting scheme
Parity
*2
: Even */odd/non parity (selectable using a parameter)
*1
,
checksum(Toshiba inverter protocol), CRC(MODBUS-RTU)
Character transmission
format
format
11-bit characters
*1
(Stop bit=1, with parity)
Order of bit transmission
Low-order bits transmitted first
Frame length
Variable (to a maximum of 17 bytes)
*1: Changes to the communication baud rate and to the parity setting do not take effect until the in-
verter is turned back on or reset.
*2: JIS-X-0201 (ANSI)-compliant 8-bit codes are used for all messages transmitted in ASCII mode
and vertical (even) parity bits specified by JIS-X-5001 are added to them. These even parity bits
can be changed to odd parity bits by changing the parameter setting (a change to the parameter
setting does not take effect until the inverter has been reset.)
can be changed to odd parity bits by changing the parameter setting (a change to the parameter
setting does not take effect until the inverter has been reset.)
*3: Here are the default character transmission formats. (Standard default setting)
Characters received: 11 bits (1 start bit + 8 bits + 1 parity bit + 1 stop bit) ... Standard default setting
START
BIT
BIT0
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
PARITY
BIT
STOP
BIT
The inverter receives one stop bit.
(The computer can be set so as to send 1, 1.5 or 2 stop bits.)
(The computer can be set so as to send 1, 1.5 or 2 stop bits.)
Characters sent: 12 bits (1 start bit + 8 bits + 1 parity bit + 2 stop bits) ... Standard default setting
START
BIT
BIT0
BIT1
BIT2
BIT3
BIT4
BIT5
BIT6
BIT7
PARITY
BIT
STOP
BIT
STOP
BIT
The inverter sends two stop bits.
(The computer can be set so as to receive 1, 1.5 or 2 stop bits.)
(The computer can be set so as to receive 1, 1.5 or 2 stop bits.)
*: Standard
default setting