When your automation line needs to talk to the rest of the plant, the industrial networking fieldbus gateway is the translator. But the right bridge depends on the drives you are connecting and the bus your controllers speak. This head-to-head compares two used gateways with different jobs: the SEW-Eurodrive DFP21B/UOH11B PROFIBUS DP-V1 Fieldbus Gateway for SEW drive fleets and the Burkert 00307390 / ME43 Industrial Ethernet Fieldbus Gateway.
Quick Verdict
Pick the SEW DFP21B/UOH11B if you run SEW MOVIDRIVE MDX61B or MOVITRAC B-series inverters and need PROFIBUS DP-V1 access. It bridges up to eight drives through one gateway, works on 24 V DC, and costs less. Pick the Burkert ME43 if your plant control layer runs on Industrial Ethernet and you want a gateway carrying the Bürkert model number 00307390 / ME43.
| Gateway | Price | Network / Fieldbus | Compatibility / Context |
|---|---|---|---|
| SEW-Eurodrive DFP21B/UOH11B | $155.00 | PROFIBUS DP-V1 | SEW MOVIDRIVE MDX61B / MOVITRAC B series via SBus |
| Burkert 00307390 / ME43 | $249.99 | Industrial Ethernet | Bürkert gateway model 00307390 / ME43 |
Where Each Gateway Wins
Where the SEW gateway wins: The SEW DFP21B/UOH11B is built for a defined job. The listing names its supported drives - SEW MOVIDRIVE MDX61B and MOVITRAC B series - and explains that up to eight inverters can share the gateway through SBus. It also publishes a 24 V DC supply, 0.3 A draw, -10 to +60°C operating range, and IP20 rating. For anyone standardizing on SEW drives and PROFIBUS DP-V1, this is the more directly applicable gateway, and it costs less.
Where the Burkert wins: The Burkert ME43 sits on the Industrial Ethernet side of the fieldbus world. If your controllers, PLCs, or remote I/O talk Ethernet rather than PROFIBUS DP-V1, this gateway is the one that matches that transport. It comes as a used working pull from Bürkert, and its model number 00307390 / ME43 gives you a specific part identity to compare against your existing setup.
SEW-Eurodrive DFP21B/UOH11B PROFIBUS DP-V1 Fieldbus Gateway
The SEW DFP21B/UOH11B is the specialized choice when your inverters are SEW MOVIDRIVE MDX61B or MOVITRAC B series. Through SBus, this gateway puts up to eight drives onto a PROFIBUS DP-V1 network, making it a compact bridge for a drive fleet. It runs on 24 V DC, draws 0.3 A, operates from -10 to +60°C, and carries an IP20 rating. The trade-off is its focus: this is a PROFIBUS DP-V1 gateway for SEW drives, not a universal fieldbus bridge. The unit is used and listed as discontinued by SEW-Eurodrive, so you will want to confirm that the DFP21B firmware works with your controller configuration before installation. If your line is built around SEW drives, this is the direct path to PROFIBUS DP-V1.
Burkert 00307390 / ME43 Industrial Ethernet Fieldbus Gateway
The Burkert ME43 is the Ethernet-oriented alternative. Its title identifies it as an Industrial Ethernet Fieldbus Gateway, which makes it the option to consider when your control network uses Ethernet-based fieldbus rather than PROFIBUS DP-V1. This used unit is described as a working pull and comes as pictured. The model number 00307390 / ME43 is specific, which helps you match it to an existing Bürkert installation. It is also from a different manufacturer than the SEW gateway, so it fits a different segment of the automation plant. The trade-off is that the ME43 is designed for an Ethernet fieldbus environment, so it only becomes the right pick if your network already speaks Industrial Ethernet.
Final Choice by Use Case
For SEW MOVIDRIVE MDX61B or MOVITRAC B-series drives on PROFIBUS DP-V1, choose the SEW-Eurodrive DFP21B/UOH11B. It gives you a defined drive compatibility path and a lower price.
For an Ethernet-based control network where you need a specific Bürkert gateway model, choose the Burkert 00307390 / ME43.
