If you are juggling multiple fieldbus standards on a production line, the choice between two gateways comes down to one question: what do you need to talk to? In industrial networking fieldbus, both sides of a connection have to speak the same protocol. The Delta Tau ACC-72E and Wenglor ZAG73AN02 are two fieldbus gateway options that handle different ends of that job.
Quick verdict
The Delta Tau ACC-72E is a used CAN/PROFIBUS interface card. The Wenglor ZAG73AN02 is a new, open-box fieldbus gateway that converts RS-232 to PROFIBUS DP. The Wenglor carries the lower price by a little over $40, while the Delta Tau covers CAN alongside PROFIBUS. If your system is built around a Delta Tau controller and needs both CAN and PROFIBUS, the ACC-72E is the more relevant piece. If you need to bring a serial RS-232 device into a PROFIBUS DP network and want the newer-condition unit, the Wenglor is the more direct fit.
Comparison table
| Product | Listed Price | Price Bar | Condition | Fieldbus Role |
|---|---|---|---|---|
| Delta Tau ACC-72E | USD 404.99 | Used | CAN/PROFIBUS interface card | |
| Wenglor ZAG73AN02 | USD 361.20 | New - Open box | RS-232 to PROFIBUS DP gateway |
Where each product wins
Where the Delta Tau ACC-72E wins
The ACC-72E is the card if your control platform already uses Delta Tau hardware. It lists both CAN and PROFIBUS in the model name, so you get two common fieldbus protocols on one interface. It was made in the United States, according to the part's country of origin, which can matter if sourcing is part of your purchasing criteria. The used condition is the trade-off, especially when the Wenglor arrives in new open-box state.
Where the Wenglor ZAG73AN02 wins
The Wenglor is the lower-cost, newer-condition option. It is listed as new open-box, so you are not buying a heavily used unit. More important, it is specified as an RS-232 to PROFIBUS DP gateway, which makes it a simpler bridge for legacy serial equipment. If your bottleneck is a machine that only outputs RS-232 and your network speaks PROFIBUS DP, this gateway does that job without adding a second conversion box.
Product notes
Delta Tau ACC-72E Fieldbus Gateway CAN/PROFIBUS Interface Card
The ACC-72E is the card you slot into a Delta Tau-based setup when you need CAN and PROFIBUS connectivity from one interface. It carries the ACC-72E model number, so it is easy to match against a spare-parts list. The catch is the condition: this is a used unit, and the asking price is the higher of the two. If your machine already runs a Delta Tau controller and you only need a replacement interface card, the familiar part number may still be worth it. Just keep in mind that this is a card, not a standalone gateway enclosure, so it needs to be integrated into the host system. For someone replacing an ACC-72E in an existing cabinet, this is the product to consider.
WENGLOR ZAG73AN02 FIELDBUS GATEWAY BH0229
The Wenglor ZAG73AN02 is the gateway to reach for when RS-232 equipment has to join a PROFIBUS DP network. It is listed as new open-box, which gives you a nearly new unit without the new-unit price. The model number ZAG73AN02 and the BH0229 reference make it easy to identify on a shelf. The limitation is scope: this is a serial-to-fieldbus bridge, so if your system also uses CAN, you will need to handle that protocol elsewhere. That is not a flaw in a dedicated gateway, just a planning consideration. At its lower price and with the open-box condition, it is the more economical way to bring a legacy serial device into a modern fieldbus network.
Final choice by use case
For a Delta Tau control system that needs CAN and PROFIBUS on an interface card, get the Delta Tau ACC-72E. For a serial RS-232 device that must talk to a PROFIBUS DP network, get the Wenglor ZAG73AN02. If price is the strongest constraint, the Wenglor's lower list price and new open-box condition make it the less expensive way into fieldbus. If protocol coverage is the strongest constraint, the Delta Tau card adds CAN to the same PROFIBUS conversation.
