When you're choosing a gateway for an industrial networking fieldbus, the first question is which protocol your line actually speaks. The Invertek OPT-2-ETHEG-IN Ethernet IP Fieldbus Gateway Module and the Wenglor ZAG73AN02 Fieldbus Gateway BH0229 take two different routes through that decision. One is a new module aimed at Ethernet/IP; the other is an open-box gateway with a serial-to-PROFIBUS profile. So the pick comes down to your network, not just the price gap.
Quick verdict
For an Ethernet/IP controls network, the Invertek OPT-2-ETHEG-IN gives you a new module at the lower price. For a PROFIBUS DP setup that needs a serial bridge, the Wenglor ZAG73AN02 is the more specialized gateway despite the higher price.
At a glance
| Consideration | Invertek OPT-2-ETHEG-IN | Wenglor ZAG73AN02 BH0229 |
|---|---|---|
| Price | USD 152.98 | USD 361.20 |
| Condition | New | New - Open box |
| Module type / protocol focus | Ethernet IP Fieldbus Gateway, PLC Ethernet Module | Fieldbus Gateway, RS-232 to PROFIBUS DP |
| MPN | OPT-2-ETHEG-IN | ZAG73AN02 |
Where each product wins
- Invertek OPT-2-ETHEG-IN wins when you're looking for a new, lower-priced Ethernet/IP gateway module that can take the PLC Ethernet Module role.
- Wenglor ZAG73AN02 wins when your line is built around PROFIBUS DP and needs the serial bridge this Wenglor module is built around.
Product notes
Invertek OPT-2-ETHEG-IN Ethernet IP Fieldbus Gateway Module
The Invertek sits at the low end of the price range, and that makes it an easy first look for a controls project where spend matters. Its model and MPN both read OPT-2-ETHEG-IN, and its module type is PLC Ethernet Module, so it lines up with the Ethernet/IP side of the fieldbus world. The unit is new rather than open box, which removes one layer of condition uncertainty. The trade-off is scope: the module's identity is Ethernet/IP, so choose it when that's the network you're feeding. If your machine room is built around a serial-to-PROFIBUS DP bridge, the higher-priced Wenglor in this pair is the one that names that role.
Wenglor ZAG73AN02 Fieldbus Gateway BH0229
The Wenglor sits at the top end of the price range and earns that position with a protocol-specific feature set. It is described as a fieldbus gateway with RS-232 to PROFIBUS DP, which makes it the candidate to examine when you're connecting a serial device into a PROFIBUS DP fieldbus. The MPN is ZAG73AN02, and it carries the Wenglor brand. The trade-off is condition: it is new open box, so the packaging has been opened even though the status is still new. If you want a sealed-box unit instead, or your network is Ethernet/IP, the higher price and PROFIBUS-oriented feature set become harder to justify.
Final choice by use case
Choose the Invertek OPT-2-ETHEG-IN when you want a new Ethernet/IP gateway module and want to stay at the lower end of the price range. Choose the Wenglor ZAG73AN02 when your application calls for the serial-to-PROFIBUS bridge and you're comfortable paying the higher price for an open-box gateway that targets that specific fieldbus role.
