When you're shopping for control cables, connectors, and I/O parts, you can end up comparing a remote I/O module with an industrial control cable. Both are legitimate expenses on a factory floor, but they solve different problems. The Automation Direct H2-ERM100 and Keyence OP-87529 are close enough in cost that the price tag alone won't make the decision. Instead, you have to look at the control platform you're using and the exact job the part needs to do. This head-to-head will help you see which product belongs in your cart.
Quick verdict
For a DirectLOGIC-family setup that needs a remote I/O module, the Automation Direct H2-ERM100 is the practical pick. If your machine already specifies a Keyence OP-87529 cable, the Keyence part is the one to get. The decision rests on your existing hardware, not on which option is cheaper.
Comparison
| Automation Direct H2-ERM100 | Keyence OP-87529 | |
|---|---|---|
| Listed price | USD 159.00 | USD 167.32 |
| Part type | DirectLOGIC DL205 remote I/O module | Industrial control cable, 1PC |
| Main spec | 1 Ethernet 10/100Base-T port | Controller Platform: Automate |
| Compatibility | D2-240, D2-250, D2-250-1, D2-260, D2-262, Do-more H2 series CPUs | Automate platform |
| Condition | New - Open box | New |
| Origin | China | Japan |
Where each product wins
Automation Direct H2-ERM100 wins when your project is tied to the DirectLOGIC family and you need the expansion this module provides. Keyence OP-87529 wins when your machine is already built around this exact Keyence cable part number.
Product notes
Automation Direct H2-ERM100 / H2ERM100
Pick this module when you're building or servicing a DirectLOGIC DL205 system with one of the compatible D2-series CPUs: D2-240, D2-250, D2-250-1, D2-260, D2-262, or Do-more H2 series. Its single Ethernet 10/100Base-T port is the reason it makes sense if you need a network-connected I/O link for that control family. The module's condition is open box, so you are getting an unused unit with an opened box. That open-box state is the limitation if your facility prefers factory-sealed components. Before ordering, confirm your exact CPU because the D2-230 and H2-WPLCx-xx are not supported. For the right CPU, this module is a practical addition.
Keyence OP-87529
The reason to choose the Keyence OP-87529 is that it's a Japan-made Keyence control cable for an Automate controller platform, and it is a one-piece unit. If your machine already specifies this exact Keyence part number, your buying decision is almost made: it's new, and the part number matches the cable your system expects. The limitation is the price: at USD 167.32, you are paying for one cable, not a set. If you need multiple cables, you would order additional single pieces. Use the part number as your compatibility check; when the machine calls for OP-87529, the cable is the intended item.
Final choice by use case
- If the next step in your project is adding an Automation Direct H2-ERM100 module, choose the H2-ERM100.
- If you need a single Keyence OP-87529 cable to replace or match an existing part, choose the OP-87529.
- When the exact controller and cable part number are both in front of you, let those model numbers make the decision.
