Modbus

TagSource örneği

{
  "protocol": "modbusTcp",
  "host": "127.0.0.1",
  "port": 502,
  "unitId": 1,
  "address": 4000,
  "encoding": "uint16",
  "byteOrder": "abcd",
  "area": "holding",
  "transport": "tcp"
}

Alanlar

Alan	Zorunlu	Not
host, port, address	evet
unitId / slaveId	hayır	varsayılan 1
encoding	hayır	uint16 (v), int32, float32
byteOrder	hayır	abcd (v), dcba, badc, cdab
area	hayır	holding (v), input, coil, discrete
transport	hayır	tcp (v), rtu, rtuTcp
feedbackAddress, clockAddress, stringBytes	hayır
baudRate/parity/dataBits/stopBits	RTU	rtu için

Connection: host, port, unitId, transport, seri alanlar.
Point: address, encoding, byteOrder, feedbackAddress, area, clockAddress, stringBytes.

Okuma / yazma

• Okuma: FC03, FC04, FC01, FC02
• Yazma: FC06, FC16, FC05, FC15, FC22; FC23 TCP’de var ama poll/operate seçmez

rtu host alanında örn. COM3 açılır.