IEC 60870-5-104
Connect RTUs, protection relays and substation gateways with IEC 104 and combine energy data with production and building data.
iec104
IEC 60870-5-104 is the standard telecontrol protocol of power utilities and many industrial substations. PLCGateway acts as the controlling station: after connecting it starts the data transfer, runs a general interrogation and keeps the spontaneous and cyclic messages of the station with their time tags.
Single and double points, measured values, integrated totals and step positions become tags with their quality; commands and set points are sent with direct execute and wait for the activation confirmation. This brings switchgear status and energy counters into the same SCADA, history and reports as the production machines.
- Driver id
iec104- Connection
- TCP 2404
- Address browsing
- addresses are typed or imported
- Writing
- yes
What PLCGateway reads and writes
- Single and double point information
- Measured values: normalized, scaled and short floating point
- Integrated totals (energy counters)
- Step positions and 32-bit bit strings
- Quality descriptors and CP56Time2a time tags
- Single and double commands, set points
Address examples
| Address | Meaning |
|---|---|
sp:1001 | Single point, information object address 1001 |
dp:1002 | Double point (off, on, intermediate) |
me:2001 | Measured value |
it:3001 | Integrated total (counter) |
sc:5001 · dc:5002 | Single / double command |
2001.q · 2001.t | Quality descriptor / time tag |
Controllers and devices
Equipment that is typically connected with this driver.
Connect in a few steps
Agree on the common address and information object addresses with the station owner.
Add an IEC 104 device with IP address, port 2404 and common address.
Create the points as tags or import the point list from CSV.
Use energy and switchgear data in screens, alarms, energy management and reports.
Questions and answers
Can PLCGateway send commands?
Yes. Single and double commands and set points are sent with direct execute; the activation confirmation of the station is checked and a negative confirmation is reported.
How is data quality handled?
Invalid values become bad, not topical values uncertain, and points the station never reported stay bad with the reason.
Is IEC 101 (serial) supported?
No, PLCGateway supports the TCP/IP profile IEC 60870-5-104.
Connect your machines
Tell us which controllers you run; we show you PLCGateway with your own addresses.
Product and model names are trademarks of their owners. They are named only to show which equipment the drivers communicate with; PLCGateway is not affiliated with these companies.