Toshiba TOSVERT VF-AS1 instruction manual Broadcast communication function

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E6581315

4.4. Broadcast communication function

Broadcast communication function can transmit the command (write the data) to multiple inverters by one communication. Only the write (W, P) command is valid and the read (R, G) command is in- valid. The inverters subject to the broadcast communication are the same to the independent com- munication; 0 to 99 (00H - 63H) in the ASCII mode, and 0 to 63 (00H - 3FH) in the binary mode. To avoid data deforming, the inverters to return data will be limited.

„“Overall” broadcast communication (ASCII mode / Binary mode)

- ASCII Mode

If you enter two asterisks (**) in the inverter number position of the data transmission format, the computer will send the data simultaneously to all inverters (with an inverter number between 0 and 99 (00 to 63H)) on the network.

- Binary Mode

To put "FF" to the specified place of the inverter number in the communication format validates the broadcast communication and the command is transmitted to all the applicable inverters in the net- work (inverter numbers from 0 to 63 (00 to 3FH)).

<Inverter that returns data to the computer>

Data is returned from the inverter bearing the inverter number 00 only.

If you do not want inverters to return data, do not assign the number 00 to any inverter on the net- work.

„“Group” broadcast communication (ASCII mode only)

If you put “*?” In the inverter number position of the data transmission format, data will be sent simultaneously to all inverters bearing a number whose digit in the one’s place in decimal notation is”?”

If you put ”?*” In the inverter number position of the data transmission format, the data will be sent simultaneously to all inverters bearing a number whose digit in the ten’s place in decimal notation is”?”.

(“?”: Any number between 0 and 9.)

<Inverter that returns data to the computer>

Data is returned only from the inverter bearing the smallest number in the same group of inverters (i.e., inverter whose number in the position of ”*” is 0).

If you do not want inverters to return data to the computer, do not assign a number having a 0 in the position of “*” to any inverter on the network.)

„Examples of broadcast communication

Ex: Set the frequency setting for communication to 60Hz.

1Host computer → Multiple inverters: broadcast communication (ASCII Mode)

Example of transmission of data from host computer to inverter: (**PFA011770)CR

Example of data returned from inverter to host computer: (00PFA011770)CR

Data is returned from the inverter numbered 00 only, while commands are issued to all inverters connected to the network.

2Host computer → A specific group of inverters: group communication (ASCII Mode)

Example of transmission of data from host computer to inverters: (*9PFA011770)CR

Example of data returned from inverter to host computer: (09PFA011770)CR

Data is returned only the inverter numbered 09 only, while commands are issued to a maximum of 10 inverters bearing the number 09, 19, 29, 39, ... or 99.

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Contents Tosvert VF-AS1 Series RS485 Communication Function E6581315②Read first Safety precautions E6581315Contents BIT15 BIT8BIT7 BIT0 General outlines of the communication functionBit Word Data transmission specifications BIT2About the handling of received frames Communication protocolMOUBUS-RTU Binary mode 2FH Toshiba Inverter ProtocolINV-NO CMD Data transmission format used in Ascii modeData transmission format Data5bytes Blank 28H Bytes Checksum areaINV-NO Data SUMData transmission format used in binary mode Byte Bytes Command receivedReturned for the 57H W and 50H P commands Sum 1 bytes Checksum not omissible 00H to FFHNorn 2FH Byte 4EH6EH BytesTransmission format of Block Communication Page Bytes Blank Start Code INV-NO Reads the data with the specified communication number CommandsDummy data is required for this command Block communication Computer Inverter RFE03CR RFE03077BCRPage Format error Data transmission format does not match Transmission errorsCommunication There is no communication number that matches Broadcast communication function VF-AS1 From the computer H = 24d  trip status Examples of the use of communication commandsAscii mode Computer → Inverter Inverter → Computer RFC90CRExamples of Communication programs Input #1,B$ =LENS$ For I=1 to LNext GotoIf Count 0 then T=TIMER 160 T=TIMER COUNT=TIMER-TPrint #1,B$ Page MSComm1.Output = Text2.Text & Chr13 End Sub End IfText2.Text = Text1.Text = End Sub MODBUS-RTU protocol Inverter number MODBUS-RTU transmission format Read commandCRC 5bytes Blank Command 1 byte Write commandBlank Command 1 byte Text size is 8 bytes fixed InverterBit counter = Error codesCRC Generation End Return CRCInter-drive communication E6581315 QWiring 2-wire RS485 communication Never use pin-7 P11 QWiring 4-wire RS485 communication）Page Parameters relating to the slave side example Proportional control of speed =0.01%Slave 100.00Hz1 00% Slave 100.00Hz 00%90.00Hz 45.00Hz 80.00Hz 40.00HzTransmission format for inter-drive communication INV-NO 1 byte Inverter numberCommunication parameters 0OFFMODBUS-RTU Baud rate,  , Parity  Inverter numberMaster INV To Slave „ Timer Time-out period Computer linkPC → INV INV INV → PC PC → INVFree notes Send waiting time , Use this function for the following case PI OFF Commands and monitoring from the computerCommunication commands commands from the computer OFFBrake release B Electric Power quantityForcibly braked Preliminary excitation Braking answer BAWire RS485 communication FA32 „ AM analog output FA52 „ Terminal board output data FA50„ FM analog output FA51 Output terminal no Specified data outputRFD00CR Monitoring from the computerUnit 0.01% N·m Input terminal function selection 9 f119 „ Input terminal board status FD06, FE06RES BIT15„ Output terminal board status FD07, FE07 „ Inverter operating status 1 FD01, FE01 ST=ON ST=OFF„ Inverter operating status 2 FD42, FE42 „ Inverter operating status 3 FD49, FE49„ Inverter operating frequency mode status FD46, FE46 „ Inverter operating command mode status FD45, FE45Preset speed operation „ Cumulative operation time alarm monitor FE79 „ Alarm information monitor FC91Bit Specifications Remarks E6581315 „ Inverter model capacity code FB05 Model DataParameter Name Range Setting LED setting by communicationUtilizing panel LEDs and keys by communication „ Block Communication Function for LED Display Ascii LED display data code 00H-1FH are blank BlankFA10=0 Key utilization by communicationFA10=1 Parameter data EEP ROMPage FE19 Torque command Alarm codeFE02 Frequency command value 01Hz FE29 Input powerE6581315 FD50 Light-load high-speed torque 01% Tion FE80 Cumulative power on timeFE84 Binary input value option SUB Appendix 1 Table of data codesCan ESCAppendix 2 Response time Response time „ Data transmission timeAppendix 3 Compatibility with the communication function VF-A7Appendix 4 Troubleshooting Appendix 5 Connecting for RS485 communication TXA RXARXB TXB
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