FourFaith RTU Extended Communication Protocol

Xiamen Four-Faith Communication Technology Co., Ltd.

Xiamen Four-Faith Communication Technology Co.,Ltd.Add J1-J3,3rdFloor,No.44,GuanRiRoad,SoftWare Park,XiaMen .361008.Chinahttp//en.four-faith.com Tel +86 13178273589 E-mail:[email protected]

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FourFaith RTU Extended Communication Protocol................................................31 Format description.............................................................................................. 3

1.1 TCP format................................................................................................31.1.1 Downlink data................................................................................31.1.2 Uplink data.................................................................................... 3

1.2 UDP format...............................................................................................41.3 Data.......................................................................................................... 41.4 SMS format...............................................................................................4

2 RTU extended protocol........................................................................................42.1 Register string and heartbeat string info................................................. 4

2.1.1 RTU sends register string. The command is 0x5000..................... 42.1.2 DSC replies to the register string. The command is 0xD000.........42.1.3 RTU sends heartbeat string. The command is 0x5001..................52.1.4 DSC replies to heartbeat string. The command is 0xD001............5

2.2 DIO and ADC control................................................................................ 52.2.5 RTU reports IO acquisition info actively and regularly. The

command is 0x5010....................................................................................... 52.2.6 DSC replies to the IO acquisition info. The command is 0xD010..62.2.7 DSC controls IO port. The command is 0xD011............................ 62.2.8 RTU replies to the control from DSC. The command is 0x5011....72.2.9 DSC queries the ADC acquisition info. The command is 0xD012..72.2.10 RTU replies to queries from DSC. The command is 0x5012.

Refer to command 0x5010.............................................................................82.2.11 DSC queries puls counter. The command is 0xD013...................82.2.12 RTU replies to counter query from DSC. The command is

0x5013............................................................................................................82.2.13 RTU sends alarm info. The command is 0x5014......................... 82.2.14 DSC replies to alarm info. The command is 0xD014................... 9

2.3 RTU parameters configuration.................................................................92.3.15 Remote configuration with AT commands in DSC. The command

is 0xD020........................................................................................................ 92.3.16 RTU replies to AT commands from DSC. The command is

0x5020............................................................................................................92.3.17 Restart RTU from DSC. The command is 0xD024........................92.3.18 RTU replies to reboot command. The command is 0x5024......10

2.4 Remote upgrade command....................................................................102.4.19 Query firmware version of RTU from DSC. The command is

0xD035..........................................................................................................102.4.20 RTU replies to firmware version query from DSC. The command

is 0x5035.......................................................................................................102.4.21 Remote download from DSC. The command is 0xD030........... 11



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2.4.22 RTU replies to remote download configuration. The commandis 0x5030.......................................................................................................122.5 RTU transparent transmission function................................................. 12

2.5.23 Send data from DSC to serial port of RTU transparently. Thecommand is 0xD0FE..................................................................................... 12

2.5.24 Send data from serial port of RTU to DSC transparently. Thecommand is 0x50FF......................................................................................12



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FourFaith RTU Extended Communication Protocol

1 Format description

Downlink data: data sent from Data Service Center to RTUUplink data: data sent from RTU to Data Service center

1.1TCP format

1.1.1 Downlink data

Start VersionHigh

VersionLow

DatalengthHigh

DatalengthLow

Data Datachecksum

End

1byte 1byte 1byte 1byte 1byte Accordingto the data

1byte 1byte

1. Start byte: 0x7E2. Version: Two bytes, 00023. Data length: According to the data content4. Data: The data content received5. Data checksum: Cumulative sum of the received data except for start byte,

end byte and checksum itself6. End byte: 0x7E7. Except for start byte and end byte, 0x7E and 0x7D in other fields are

escaped to 0x7D 0x01 and 0x7D 0x02.

1.1.2 Uplink data

Start VersionHigh

VersionLow

DatalengthHigh

DatalengthLow

Data Datachecksum

End

1byte 1byte 1byte 1byte 1byte Accordingto the data

1byte 1byte



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1.2UDP format

The same as TCP format

1.3Data

ID number Commandbyte

Data length Data

4bytes 2bytes 2bytes According tothe data

ID number: Device ID numberData length: Length of data content

1.4SMS format

14 bit encoded format is used. It has the same format as 1.3Data.

2 RTU extended protocol

The is the extended protocol from FourFaith and its big-edian.

2.1 Register string and heartbeat string info

2.1.1 RTU sends register string. The command is 0x5000.

The info in the register string is as below.

field length(byte) NoteData content length 2 Total length of the

parameters belowRTU phone number 20 Add blank space if less

then 20 bytes



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2.1.2 DSC replies to the register string. The command is

0xD000.

field Length(byte) NoteData content length 2 Total length of the

parameters belowReply manner 1 0 stands for register failure

1 stands for registersuccess

2.1.3 RTU sends heartbeat string. The command is 0x5001.

The info in the heartbeat string is below.Field Length(byte) NoteData content length 2 No parameter. Length is 00

2.1.4 DSC replies to heartbeat string. The command is

0xD001.

Field Length(byte) NoteData content length 2 Total length of the

parameters belowReply manner 1 0 stands for receiving

heartbeat failure1 stands for receivingheartbeat success



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2.2 DIO and ADC control.

2.2.5 RTU reports IO acquisition info actively and regularly.

The command is 0x5010.

The IO acquisition info is below.Field Length

(byte)Note

Data content length 2 Total length of the parametersbelow

Identifier for the same packet 1 To identify if the datacorresponds to ACK packet

The valid number of DIO ports 1 The valid IO portsnumber(assuming its n1)

Each DIO portinfo(loop n1times

addr. 1 Address starts from 1The valid number ofeach DIO port

1 The valid collection number ofeach DIO port(m1 is no morethan 10)

Current IOchannelinfo (loopm1 times)

Value 1 0 stands for low level and 1stands for high level

Acquisitiontime

4 Acquisition time. Time after Jan1st 2000(second)

The valid number of ADC ports 1 The valid acquisition number ofADC port(assuming its n2).

Each ADC portinfo(loop n2times)

addr. 1 Address starts from 1The valid number ofeach ADC port

1 The valid acquisition number ofeach ADC port(m2 is no morethan 10)

CurrentADCchannelinfo(loop m2times)

Value 4 The calculated value for ADCacquisition(with symbolicnumber)

Acquisitiontime

4 Acquisition time. Time after Jan1st 2000(second)



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2.2.6 DSC replies to the IO acquisition info. The command is

0xD010.

Field Length(byte) NoteData content length 2 Total length of the

parameters belowReply manner 1 0 stands for IO acquisition

failure1 stands for IO acquisitionsuccess

Identifier for the samepacket

1 To identify if the datacorresponds to ACK packet

2.2.7 DSC controls IO port. The command is 0xD011.

Field Length(byte) NoteData content length 2 The total length of the

parameters belowNumber of DIO 1 The number of DIO to

control(assuming its n).DIO portsinfo(loop ntimes)

DIO port addr. 1 DIO port addr. start from 1DIO port type 1 0 stands for low level output, 1

stands for high level output, 2stands for rising edge, 4 standsfor falling edge, 5 stands forsquare wave.

square wavefrequency(if itsnot squarewave, the valueis 0)

4 The unit is 20mS. The minaccuracy is 20mS due to theinfluence of timer.

2.2.8 RTU replies to the control from DSC. The command is

0x5011.

field Length(byte) NoteData content length 2 The total length of the



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parameters belowReply manner 1 0 stands for control failure

1 stands for controlsuccess

2.2.9 DSC queries the ADC acquisition info. The command is

0xD012.

Data content length 2 The total length of theparameters below

Identifier for the same packet 1 To identify if the datacorresponds to ACK packet

Number of the IO ports queried 1 Number of the IO portsqueried(n1)

Each IO channelinfo(loop n1 times)

Addr. 1 Address starts from 1

Valid number of the ADC inputsqueried

1 Valid number of the ADC inputsqueried(assuming its n2)

Each ADC channelinfo(loop n2 times)

Addr. 1 Address starts from 1

2.2.10 RTU replies to queries from DSC. The command is

0x5012. Refer to command 0x5010.

2.2.11 DSC queries puls counter. The command is 0xD013.

Field Length(byte) NoteData content length 2 No parameter. Length is 00

2.2.12 RTU replies to counter query from DSC. The command

is 0x5013.

Field Length(byte) Note



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Data content length 2 The total length of theparameters below

Counter value 4 The counter value fromthe counting beginning toquery

2.2.13 RTU sends alarm info. The command is 0x5014.


parameters belowIdentifier for the samepacket


Type 1 0 stands for DIO, 2 standsfor ADC input and 2 standsfor counter

Addr. 1 The correspondingchannel addr, startingfrom 1

Value 4 The correspondingacquisition value(withsymbolic number)

Acquisition time 4 Acquisition time. Timeafter Jan 1st 2000(second)

2.2.14 DSC replies to alarm info. The command is 0xD014.


parameters belowReply manner 1 0 stands for reply failure

1 stands for reply successIdentifier for the samepacket




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2.3RTU parameters configuration

2.3.15 Remote configuration with AT commands in DSC. The

command is 0xD020


parameters belowOne AT command The length depends on the

command. End with \r\n

2.3.16RTU replies to AT commands from DSC. The command is

0x5020.

Field Length NoteData content length 2 The total length of the

parameters belowAT command reply The length depends on the AT

command reply. It will bedivided if longer than 1450bytes

2.3.17Restart RTU from DSC. The command is 0xD024.


2.3.18RTU replies to reboot command. The command is

0x5024.




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2.4Remote upgrade command

2.4.19Query firmware version of RTU from DSC. The

command is 0xD035.


2.4.20RTU replies to firmware version query from DSC. The

command is 0x5035.

Field Length Field descriptionData length 2 The length of the fields below, 80 bytes in totalAPP ver. 40 RTU APP program version. Add blank space if less than

40 bytes.BOOT ver. 40 RTU BOOT program version. Add blank space if less

than 40 bytes.

2.4.21Remote download from DSC. The command is 0xD030.

Field Length Field descriptionData length 2 The length of the fields below, 92 bytes in total



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property 1 X111X111 (X is reserved bits)Bit7, bit3: Reservebit6 : 1. Compression mode download; 0.

Non-compression mode download.bit5 : 1. Download immediately; 0. Dont download

immediately(according to time set)bit4 : 1. Erase parameter area; 0. Dont erase

parameter area.bit2~bit0Combination is below:

0x00 APP program download0x01 BOOT program download

Other combinations remain to be extended.Mode 1 0x00 TCP, 0x01 UDP

Reply manner 1 0x00 stands for reply one by one. 0x01 stands for windowreply.

Max windowframe number

1 The Max frame number of a window is 16. Its no morethan 4 in this protocol.

APN 20 (This function is not available at present) Such ascmnet. Add blank space if less then 20 bytes.

IP 20 Such as 119.75.217.56. Add blank space if less then 20bytes.

PROT 5 Such as 2000.Add blank space if less then 5 bytes.New ver. length 1 Transmission format: HEX

Range: 1



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Reply manner 1 Reply type:00H failure01H success02H not the latest version

2.5RTU transparent transmission function

2.5.23Send data from DSC to serial port of RTU transparently.

The command is 0xD0FE.


parameters belowTransparent transmission data According to the data

2.5.24Send data from serial port of RTU to DSC transparently.

The command is 0x50FF


parameters belowTransparent transmission data According to the data

FormatdescriptionTCPformatDownlinkdataUplinkdata

UDPformatDataSMSformat

RTUextendedprotocolRegisterstringandheartbeatstringinfoRTUsendsregisterstring.Thecommandis0x5000.DSCrepliestotheregisterstring.ThecommandisRTUsendsheartbeatstring.Thecommandis0x5001.DSCrepliestoheartbeatstring.Thecommandis0x

DIOandADCcontrol.RTUreportsIOacquisitioninfoactivelyandregulDSCrepliestotheIOacquisitioninfo.ThecommanDSCcontrolsIOport.Thecommandis0xD011.RTUrepliestothecontrolfromDSC.ThecommandiDSCqueriestheADCacquisitioninfo.ThecommandRTUrepliestoqueriesfromDSC.Thecommandis0DSCqueriespulscounter.Thecommandis0xD013.RTUrepliestocounterqueryfromDSC.ThecommanRTUsendsalarminfo.Thecommandis0x5014.DSCrepliestoalarminfo.Thecommandis0xD014.

RTUparametersconfigurationRemoteconfigurationwithATcommandsinDSC.TheRTUrepliestoATcommandsfromDSC.ThecommandiRestartRTUfromDSC.Thecommandis0xD024.RTUrepliestorebootcommand.Thecommandis0x50

RemoteupgradecommandQueryfirmwareversionofRTUfromDSC.ThecommanRTUrepliestofirmwareversionqueryfromDSC.ThRemotedownloadfromDSC.Thecommandis0xD030.RTUrepliestoremotedownloadconfiguration.The

RTUtransparenttransmissionfunctionSenddatafromDSCtoserialportofRTUtranspareSenddatafromserialportofRTUtoDSCtranspare

FourFaith RTU Extended Communication Protocol

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