x/dlt645Read component: v0.37.0+ Reads meter data items via the DL/T 645-2007 protocol and writes results to msg.Data as a unified iot_points.Data list.

Requires: rulego-components-iot (opens new window)

Configuration

Field	Type	Description	Default
server	string	Meter TCP address (serial server passthrough), host:port	127.0.0.1:8899
addr	string	12-digit BCD meter address	000000000001
timeout	int	Request timeout (seconds)	5
points	array	Default point table (addr=DI). Points in msg.Data take precedence	-

Point Table Fields

Field	Description
name	Point name
addr	Data Identifier DI (see below)
type	Data type (default BCD)

All fields support ${msg.xx} / ${metadata.xx} templates.

Address Format (Data Identifier)

Format: XX-XX-XX-XX (4 bytes)

DI	Description
00-01-00-00	Forward active total energy
02-01-01-00	Phase A voltage
02-02-01-00	Phase A current
02-03-00-00	Instantaneous active power
04-00-01-01	Meter number

Data Types

• BCD (default): standard BCD, auto-decimal by DI
• BCD_SIGNED: signed BCD
• INT16/UINT16/INT32/UINT32/INT64/UINT64: binary integers
• BOOL/STRING: special types

Input/Output

• Input: use configured points, or override them by passing a point list in msg.Data
• Output: [{"name","value","timestamp","error"}]

Example

{
  "id": "dlt645_read",
  "type": "x/dlt645Read",
  "configuration": {
    "server": "192.168.1.40:8899",
    "addr": "000000000001",
    "points": [
      {"name": "totalEnergy", "addr": "00-01-00-00"},
      {"name": "voltageA", "addr": "02-01-01-00"}
    ]
  }
}

Related

• Overview: x/dlt645
• Write: x/dlt645Write
• Universal acquisition entry: x/iotRead (driver=dlt645)
• To time-series storage: x/tsdbWrite (measurement configured)