Finding the right industrial networking fieldbus gateway is about more than picking a brand. You need to weigh protocol focus, port configuration, condition, and a listed-price spread that runs from a used unit at $99.99 up to an open-box Moxa at $969.00. This guide compares four gateways so you can see which one fits a specific use case without pretending they are interchangeable.
Quick Take
The four options split into three distinct approaches. The Datalogic FBC9080-N100 is the only used unit in the group. The Softing FG-100-PB is a new open-box fieldbus gateway. Both Moxa entries are open-box fieldbus gateways: the 4101-MB-PBS and the MGATE 4101-MB-PBS. The two Moxa units carry similar model strings but differ in listed price and the details shown in their titles. The price spread is wide, but the feature mix is not directly comparable because each unit arrives with different details in its title and specs.
Listed Price Comparison
| Product | Listed Price | Price Bar | Condition |
|---|---|---|---|
| Datalogic FBC9080-N100 | USD 99.99 | Used | |
| Softing FG-100-PB | USD 233.89 | New - Open box | |
| Moxa 4101-MB-PBS | USD 869.00 | Open box | |
| Moxa MGATE 4101-MB-PBS | USD 969.00 | Open box |
Decision Matrix
| If Your Priority Is... | Consider... | Why |
|---|---|---|
| The lowest listed price | Datalogic FBC9080-N100 | It sits at the bottom of the price spread. |
| Explicit PROFIBUS/Ethernet channel count | Softing FG-100-PB | The title names PROFIBUS/Ethernet and 1 Channel directly. |
| A lower-priced Moxa with speed detail | Moxa 4101-MB-PBS | The title includes 230.4 Kbps, which the other Moxa title does not. |
| A higher-priced Moxa with voltage/serial detail | Moxa MGATE 4101-MB-PBS | The product details include 12-48VDC and RS-232/422/485, which the other Moxa title does not. |
Product Notes
Datalogic FBC9080-N100

At $99.99, the Datalogic FBC9080-N100 is the least expensive way into this fieldbus gateway group. It is condition: Used, with brand Datalogic, MPN FBC9080, and Country of Origin Italy. The title calls it a Fieldbus Converter PROFINET Gateway, so PROFINET is the protocol story here. The main limitation is the used condition, which sets it apart from the open-box units in this comparison. If you want a PROFINET gateway and are willing to buy used at a low listed price, this is the one.
Softing FG-100-PB

The Softing FG-100-PB is listed at $233.89 and is the only unit described as New - Open box. Its title says Fieldbus Gateway PROFIBUS/Ethernet, 1 Channel, making it the only gateway here with an explicit PROFIBUS/Ethernet channel count in the product name. The gtin is listed as "Does not apply," and the MPN is FG-100-PB. The limitation is that you do not get the serial interface or voltage details shown in the Moxa entries. For a dedicated 1-channel PROFIBUS/Ethernet gateway at a mid-range price, this option lines up well.
Moxa 4101-MB-PBS

The Moxa 4101-MB-PBS has a listed price of $869.00 and is open box. The title adds 230.4 Kbps, and the product details include a Modbus to Profibus Slave Gateway designation, 1-Port, Drop-In Module, and a 0 to 55°C operating range. It is the lower-priced Moxa in this pair. The limitation is the price relationship with its sibling: the MGATE 4101-MB-PBS is listed $100 higher even though both Moxa entries share the 4101-MB-PBS string in their MPNs. If speed detail matters, this is the Moxa to look at.
Moxa MGATE 4101-MB-PBS

The MGATE 4101-MB-PBS is the highest-priced item here at $969.00, condition open box. The title says Fieldbus Gateway, 1-Port, and the product details include 12-48VDC and RS-232/422/485, which the other Moxa title does not contain. MPN is MGATE 4101-MB-PBS. The limitation is the $100 listed-price gap between the two Moxa units; the MGATE prefix and the added voltage/serial detail are what separate it. If you prefer the MGATE model naming and want those serial interface specs on paper, this is the one.
Final Recommendation by Use Case
- Pick the Datalogic FBC9080-N100 for the lowest listed price.
- Pick the Softing FG-100-PB if the Softing protocol focus fits your network.
- Pick the Moxa 4101-MB-PBS for the lower-priced Moxa entry.
- Pick the MGATE 4101-MB-PBS for the higher-priced Moxa entry with the MGATE model name.
No single gateway is right for every network, so match the model to the protocol and condition you are comfortable with.