@djtef Voici le sniff modbus. Pas grand chose à en tirer, ça alterne entre 2 commandes, la passerelle doit probablement commencer par demander des infos pour identifier l’appareil.
[29/09/2024 10:38:01]
Modbus Response (COM3)
Address: 2
Function: 3 (0x03) - Read Holding Registers
Byte Count: 4
Values: 20 00 01 02
Register0: 8192
Register1: 258
Checksum: 0xfef2 - BAD (should be 0xecf0)
----------------------------------------------------------------------------------
[29/09/2024 10:38:23]
Modbus Response (COM3)
Address: 2
Function: 3 (0x03) - Read Holding Registers
Byte Count: 4
Values: 20 00 01 02
Register0: 8192
Register1: 258
Checksum: 0x42a2 - OK
----------------------------------------------------------------------------------
[29/09/2024 10:38:31]
Modbus Response (COM3)
Address: 253
Function: 122 (0x7a)
Exception Code: 7
Checksum: 0xfef2 - BAD (should be 0xc8f0)
----------------------------------------------------------------------------------
[29/09/2024 10:38:55]
Modbus Response (COM3)
Address: 2
Function: 3 (0x03) - Read Holding Registers
Byte Count: 4
Values: 20 00 01 02
Register0: 8192
Register1: 258
Checksum: 0x42a2 - OK
----------------------------------------------------------------------------------
[29/09/2024 10:39:01]
Modbus Response (COM3)
Address: 253
Function: 122 (0x7a)
Exception Code: 7
Checksum: 0xfef2 - BAD (should be 0xc8f0)
----------------------------------------------------------------------------------
[29/09/2024 10:39:27]
Modbus Response (COM3)
Address: 2
Function: 3 (0x03) - Read Holding Registers
Byte Count: 4
Values: 20 00 01 02
Register0: 8192
Register1: 258
Checksum: 0x42a2 - OK
----------------------------------------------------------------------------------
[29/09/2024 10:39:32]
Modbus Response (COM3)
Address: 253
Function: 122 (0x7a)
Exception Code: 7
Checksum: 0xfef2 - BAD (should be 0xc8f0)
----------------------------------------------------------------------------------
[29/09/2024 10:39:59]
Modbus Response (COM3)
Address: 2
Function: 3 (0x03) - Read Holding Registers
Byte Count: 4
Values: 20 00 01 02
Register0: 8192
Register1: 258
Checksum: 0x42a2 - OK
----------------------------------------------------------------------------------
[29/09/2024 10:40:02]
Modbus Response (COM3)
Address: 253
Function: 122 (0x7a)
Exception Code: 7
Checksum: 0xfef2 - BAD (should be 0xc8f0)
----------------------------------------------------------------------------------