SPW860-8X — protocol converter and communication unit
One box that speaks 101, 102, 103, 104, Modbus, CDT and IEC 61850 — in either direction.
An industrial communication unit for distribution automation, substation retrofits and industrial data acquisition. Protocols are configuration items rather than separate products, and any supported protocol can be mapped to any other — 104 to 61850, Modbus to 104, CDT to 61850, and so on.

Protocol options
Each unit is configured with the protocol set the site needs. Because the same box can be a master on one port and an outstation on another, it also works as a protocol-level bridge between an older telecontrol channel and a modern station bus.
- Modbus — serial and Ethernet
- CDT
- IEC 60870-5-101 master and outstation
- IEC 60870-5-102 master and outstation
- IEC 60870-5-103 master and outstation, including Ethernet variants
- IEC 60870-5-104 master, outstation and combined telecontrol mode
- IEC 61850 GOOSE
- IEC 61850 MMS client and MMS server
- IEC 61850 MMS pass-through and remote control
Where it earns its place
Retrofit is the usual case: a substation with 101 or CDT outstations and a new 104 or 61850 master needs a mapping device rather than a rewrite of every bay. The same applies in the other direction when a modern IED has to feed an older control centre.
Interface configuration
| Interface | Provided |
|---|---|
| 100 Mbps Ethernet RJ45 | Yes |
| CAN | Yes |
| RS-485 | Yes |
| RS-232 | Yes |
Interface counts per variant; confirm the exact configuration for your order.
Frequently asked
Can both ends be different protocols?
Yes — that is the point. Supported protocols can be converted to each other, with the point mapping configured per project.
Is this a development kit or a finished product?
A finished product. The same protocol kernel is also available as the source-licensed SDKs if you would rather build your own hardware.
Can the protocol set be changed later?
The protocol set is selectable at order time and configured on site; tell us the target mix and we will confirm what the unit can hold.
Related reading
IEC 61850 to Modbus TCP gateway: point mapping that does not rot
How to map IEC 61850 data to Modbus registers so the point table survives a firmware update: model-driven vs list-driven…
Redundancy in substation networks: PRP, HSR, and what the software has to do
How parallel redundancy protocols work, what duplicate handling means for a protocol stack, and why redundancy is mostly…
Digital substation architecture in ten minutes
What actually changes when a substation goes digital: merging units and the process bus, the station bus, where IEC 6185…
Related
EmbedCore-v5
Turn a conventional protection or bay controller into a compliant IEC 61850 IED in one to two weeks.
StationCore
Bring up to 200 IEDs into your master station or gateway with a few lines per device.
Ask about SPW860-8X
Tell us the platform, the protocols and the acceptance criteria. We will answer with what the licence covers and what the integration effort looks like — not with a brochure.