rs485 – Hermetry

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PIC24FJ128GA202 Modbus RTU slave over MAX485 never answers the gateway

by harrisplc in Modbus, OPC UA and fieldbus · 1 reply

1 2 6 days, 8 hours ago by jason_fw

Solved Pi açılışta RS-485 hattına çöp bayt basıyor, enerji analizörü cevap vermeyi kesiyor

by gunesmaker in Modbus, OPC UA and fieldbus · 6 replies

6 5 1 week, 2 days ago by gamzek48

Solved Eight meters on 30 m of RS-485 at 9600 baud: do I need termination, or is it something else?

by owenn93 in Modbus, OPC UA and fieldbus · 5 replies

5 4 3 weeks, 6 days ago by tyler22

Solved Inverters on RS-485 and serial-radio sensors: what gets non-IP gear into Hermetry?

by carlosc76 in Gateways and edge · 7 replies

7 6 2 months, 3 weeks ago by carlosc76

Solved TI part suffix question: ISO1410DW vs ISO1410DWR for a gateway RS-485 repair

by si_tyler in Supported devices and hardware · 4 replies

4 3 2 months, 3 weeks ago by wilsonmaker

Solved Isolated ADM2582E link works without a ground wire. How, and should I trust it?

by lewisfw in Modbus, OPC UA and fieldbus · 6 replies

6 5 5 months, 1 week ago by lewisfw

Solved RS-485 cable shield: earth, 0 V of the supply, or both ends?

by rahulr29 in Modbus, OPC UA and fieldbus · 8 replies

8 7 8 months ago by rahulr29

Solved Twelve Nanos across an 80 m greenhouse: least wiring back to one gateway?

by thompsonfw in Modbus, OPC UA and fieldbus · 7 replies

7 6 8 months ago by thompsonfw

Solved 400 metrelik RS485 hattının sonundaki sensörler öğlen saatlerinde düşüyor

by aslandev in Modbus, OPC UA and fieldbus · 7 replies

7 6 8 months, 2 weeks ago by aslandev

Solved MAX485 on our gateway dies every few weeks on an 80 m bus between two buildings

by harrisplc in Modbus, OPC UA and fieldbus · 5 replies

5 4 10 months, 3 weeks ago by kevin.cto

Solved STM32 with a MAX3485 gets my own echo and loses the start of the Modbus reply

by thompsonplc in Modbus, OPC UA and fieldbus · 5 replies

5 4 11 months ago by thompsonplc

Solved Pi as Modbus RTU master for six PIC slaves on one RS-485 line: replies collide and get garbled

by thompsonplc in Modbus, OPC UA and fieldbus · 5 replies

5 4 1 year, 2 months ago by thompsonplc

Solved SDM120 meter ignores my hand-built Modbus frame from a Nano

by wilsonmaker in Modbus, OPC UA and fieldbus · 7 replies

7 5 1 year, 2 months ago by dev_kevin