Ich habe es geschafft eine Datenverbindung herzustellen.
Die ersten Erkenntnisse:
Verwendet wird eine der beiden RS484 Schnittstellen, wo das WLAN-Modul angeschlossen ist. Grundsätzlich spielt es keine Rolle welche RS485 Schnittstelle verwendet wird.
Parallel zum WLAN-Modul schließt man das RS485-Monitoring-Modul an. Ohne WLAN-Modul funktioniert leider keine der beiden RS485 Schnittstellen. Da ohnehin nur ein Monitoring benötigt wird reicht das aus.
Test
Schnittstelle: RS485-1
WLAN-Modul und parallel angeschlossenes RS485 Gerät für das optionale Monitoring.
Einstellung: 9600 8 N 1 N H MODBUS RTU Mode
Pin-Out: Pin 1 weiß orange +5V
Pin 2 orange GND
Pin 3 weiß grün
Pin 4 blau
Pin 5 weiß blau
Pin 6 grün
Pin 7 weiß braun +A
Pin 8 braun -B
Auszug Monitoring:
Code: Alles auswählen
Packet 50: MODBUS Request (packet size: 8, data size: 4), 2023-09-17 11:53:30,4467202 +0,5060435
Mode: RTU
Address: 255 (Slave)
Function: 3 (Read Holding Registers)
Starting Address: 263
Number of Registers: 9
Parsed As:
Address: 40263-40271 (9)
CRC:8239 (OK)
Packet 50: MODBUS Response (packet size: 23, data size: 19), 2023-09-17 11:53:30,4467202 +0,5060435
Mode: RTU
Address: 1 (Slave)
Function: 3 (Read Holding Registers)
Parsed As:
Register0: 0
Register1: 0
Register2: 0
Register3: 0
Register4: 6
Register5: 0
Register6: 0
Register7: 125
Register8: 0
CRC:18746 (OK)
Packet 52: MODBUS Request (packet size: 8, data size: 4), 2023-09-17 11:53:30,9680740 +0,5211700
Mode: RTU
Address: 255 (Slave)
Function: 3 (Read Holding Registers)
Starting Address: 516
Number of Registers: 14
Parsed As:
Address: 40516-40529 (14)
CRC:37289 (OK)
Packet 52: MODBUS Response (packet size: 33, data size: 29), 2023-09-17 11:53:30,9680740 +0,5211700
Mode: RTU
Address: 1 (Slave)
Function: 3 (Read Holding Registers)
Parsed As:
Register0: 3
Register1: 0
Register2: 0
Register3: 0
Register4: 0
Register5: 0
Register6: 0
Register7: 0
Register8: 2575
Register9: 1798
Register10: 6534
Register11: 0
Register12: 4
Register13: 0
CRC:34939 (OK)
Packet 54: MODBUS Request (packet size: 8, data size: 4), 2023-09-17 11:53:31,4750403 +0,5068110
Mode: RTU
Address: 255 (Slave)
Function: 3 (Read Holding Registers)
Starting Address: 530
Number of Registers: 20
Parsed As:
Address: 40530-40549 (20)
CRC:61862 (OK)
Packet 54: MODBUS Response (packet size: 45, data size: 41), 2023-09-17 11:53:31,4750403 +0,5068110
Mode: RTU
Address: 1 (Slave)
Function: 3 (Read Holding Registers)
Parsed As:
Register0: 4400
Register1: 2369
Register2: 36
Register3: 4997
Register4: 2384
Register5: 36
Register6: 4997
Register7: 0
Register8: 0
Register9: 0
Register10: 23
Register11: 0
Register12: 0
Register13: 0
Register14: 272
...
CRC:5634 (OK)
Packet 56: MODBUS Request (packet size: 8, data size: 4), 2023-09-17 11:53:31,9335524 +0,4583662
Mode: RTU
Address: 255 (Slave)
Function: 3 (Read Holding Registers)
Starting Address: 57348
Number of Registers: 1
Parsed As:
Address: 97348-97348 (1)
CRC:59349 (OK)
Packet 56: MODBUS Response (packet size: 7, data size: 3), 2023-09-17 11:53:31,9335524 +0,4583662
Mode: RTU
Address: 1 (Slave)
Function: 3 (Read Holding Registers)
Parsed As:
Register0: 3
CRC:63557 (OK)
Packet 58: MODBUS Request (packet size: 8, data size: 4), 2023-09-17 11:53:32,4404725 +0,5068221
Mode: RTU
Address: 255 (Slave)
Function: 3 (Read Holding Registers)
Starting Address: 57622
Number of Registers: 1
Parsed As:
Address: 97622-97622 (1)
CRC:17964 (OK)
Packet 58: MODBUS Response (packet size: 7, data size: 3), 2023-09-17 11:53:32,4404725 +0,5068221
Mode: RTU
Address: 1 (Slave)
Function: 3 (Read Holding Registers)
Parsed As:
Register0: 30
CRC:14412 (OK)
