If you are choosing between these two fieldbus gateways, the first thing to settle is which protocol sides you need to connect. The Delta Tau ACC-72E is a CAN/PROFIBUS interface card listed at $404.99. The Softing FG-100-PB is a single-channel PROFIBUS/Ethernet gateway listed at $233.89. They are not interchangeable replacements; they solve different network bridges, and the $171.10 price spread reflects that.
Quick verdict
For a PROFIBUS-to-Ethernet bridge on one channel, the Softing FG-100-PB is the direct option. For a CAN-to-PROFIBUS interface card, the Delta Tau ACC-72E is the matching part.
At a glance
| Product | Focus | Listed price | Price bar | Condition |
|---|---|---|---|---|
| Delta Tau ACC-72E CAN/PROFIBUS Interface Card | CAN to PROFIBUS | $404.99 | Used | |
| Softing FG-100-PB PROFIBUS/Ethernet Gateway | PROFIBUS to Ethernet, 1 channel | $233.89 | New - Open box |
Where each product wins
- Delta Tau ACC-72E wins when your network link has CAN on one side and PROFIBUS on the other.
- Softing FG-100-PB wins when you need to put PROFIBUS traffic onto Ethernet through a single channel.
Delta Tau ACC-72E Fieldbus Gateway CAN/PROFIBUS Interface Card
The Delta Tau ACC-72E is the part to look at when CAN and PROFIBUS are the two fieldbus languages you need to connect. Its title identifies it as an interface card, so it sits in the conversation as the CAN/PROFIBUS bridge rather than the Ethernet gateway role. It carries the MPN ACC-72E and a country of origin of the United States. If your installed base already speaks CAN and you need to bring PROFIBUS into that loop, this card gives you the protocol pairing you are after. A CAN-to-PROFIBUS link is a different network shape from an Ethernet uplink, so the Delta Tau answers the question before you even get to price. The main limitation is the cost: it is the higher-priced of the two, and its interface-card role does not put PROFIBUS onto Ethernet. If your eventual target is an Ethernet backbone, you would be paying for a bridge that ends at PROFIBUS instead.
Softing FG-100-PB Fieldbus Gateway PROFIBUS/Ethernet, 1 Channel
The Softing FG-100-PB is the more direct answer for a PROFIBUS-to-Ethernet gateway job. Its title says 1 Channel, so you get a single PROFIBUS/Ethernet bridge rather than a multi-channel device. The listing condition is New - Open box, so the unit is new but the packaging has been opened. This matters if you want a unit that has not been through a prior installation. If Ethernet is your backbone, this gateway is the focused choice for the task. The limitation is the protocol pairing: it does not bring CAN into the equation, so if you need CAN alongside PROFIBUS, this gateway will not cover that side. Choose it for a single-channel PROFIBUS/Ethernet connection and when a new-open-box unit is acceptable.
Final choice by use case
If your industrial networking fieldbus setup is PROFIBUS talking to Ethernet, the Softing FG-100-PB is the practical pick at the lower listed price. If your setup is CAN talking to PROFIBUS, the Delta Tau ACC-72E is the interface card that matches that job. Use the protocol pairing first, then let the remaining differences settle the final call.
