Power IEC104 Protocol Server Client Master and Slave Protocol Debugging Software Tool

The software contains the full functionality of the IEC104 protocol. Remote signaling, remote control, remote adjustment, telemetry, etc.

The domestic number of this agreement is DL/T634.5104-2002, referred to as IEC104 protocol, question-and-answer protocol, based on TCP/IP protocol

Application environment (network data communication between the substation and the control center, generally using a balanced mode) Frame format (U format frame, S format frame, I format frame) Network port number (2404)

 IEC104 Packet Analysis Example:

68 boot frames

0E data length--- control domain + application service length: 14

10. Control domain 1--LSB sends serial number N(s) bit1~bit7, bit0:0

Dual-point remote control message 08 control domain 2--MSB transmits sequence number N(s): 2056

00 control domain 3 -- LSB receives serial number N(s) bit1~bit7, bit0:0

12 Control domain 4 -- MSB receive serial number N(s): 4608

680E10080012 2E 01 0600 0100 2E Type Identifier: 46

01 Variable structure qualifier VSQ - number of information = 1 SQ: 0 non-sequential (e.g. address 1, data 1, address 2,

Data 2..)

016000 8106 00 Transmission Reason--[T bit7:0][P/N bit6:0][Reason bit5~bit0:6]: Activated

01 00 Application address Low front, high back: 1

Remote Command Qualifier Format: ++++++++++ Two-Point Remote Command ++++++++++

------ remote selection: Activate

S/E QU (D6-D2) DCS (D1-D0) 01 60 00 Message Object Address: 24577

81 Dual Command DCO--S/E: 1 Select, QU (0: Short Pulse Time), DCS (1 On)

Note: S/E:=0: Execute ------ Data Frame: I Frame------

           =1 : Select (preset) 68 boot frames

      DCS = 0: 0E data length is not allowed--- control domain + service length is used: 14

10. Control domain 1--LSB sends serial number N(s) bit1~bit7, bit0:0

           =1: min 08 control domain 2 --MSB send serial number N(s): 2056

           =2: 00 control domain 3 -- LSB receives serial number N(s) bit1~bit7, bit0:0

           =3: Not allowed

12 Control domain 4 -- MSB receive serial number N(s): 4608

64 Type Identifiers: 100

01 Variable structure qualifiers

Total summoning message VSQ--Number of messages = 1 SQ: 0 Non-sequential (e.g., address 1, data 1, address 2, data 2.)

06 00 Reason for Transmission--[T bit7: