Toshiba Tosvert VF-S15 Instruction Manual page 254

6.38.2 Using RS485
 Communication function settings
Commands and frequency settings are given priority by communication. (Prioritized by commands from the
panel or terminal block.) Thus, command and frequency settings from communication are activated,
regardless of the command mode selection ( cmod ) or frequency settings mode selection settings ( fmod ).
However, setting 48: SCLC (switching from communication to local) with input terminal function selection and
when inputting from an external device, it is possible to operate at command mode selection ( cmod ) and
frequency setting mode selection ( fmod ) settings.
Moreover, selecting local mode with the EASY key as Local / remote key function changes to panel
frequency/panel operation mode.
 Transmission specifications
Communication protocol
Interface
Transmission scheme
Wiring
6
Transmission distance
Connection terminals
Synchronization scheme
Communication baud rate
Character transmission
Error detecting scheme 1
Error detecting scheme 2
Stop bit length
Order of bit transmission format
Character transmission format
Inverter Number
Broadcast communication
Frame length
Error correction
Response monitoring
Other
Item
RS485 compliant
Half duplex [Serial bus type (Line terminations resistor necessary at
both ends of system)]
2-wire
500 m max. (total length)
32max. (including upper host computer) Inverters connected in the
system: 32max.
Start-stop synchronization
9600 bps to 38.4kbps
<ASCII mode> JIS X0201 8-bit(ASCII)
<Binary mode> Binary codes fixed to 8 bits
Parity: Even/Odd/Non parity (selectable using a parameter)
Checksum
Received by inverter : 1bit / Sent by inverter : 2 bits
Low-order bits transmitted first
11-bit characters (Stop bit =1 , with parity)
<ASCII mode> 0-99
<Binary mode> 0-63 (3Fh)
Inverter Number should be set to
<ASCII mode> ** (*? or ?* (?=0-9) is available)
<Binary mode> 255 (0FFh)
Variable
None
None
Inverter operation at communication time-over: Select from
trip/alarm/none
● When alarm is selected, an alarm is output from the output terminal.
When trip is selected, err5 blinks on the panel.
F-142
Specifications
TOSHIBA inverter protocol
E6582175
MODBUS-RTU
protocol
Binary codes fixed to
8 bits
CRC
1-247
Inverter Number
should be set to 0