Deciding how to get I/O signals from a distant rack back to a PLC often comes down to the interface module. In the control cables, connectors, and I/O part of a panel, the module is where field wiring meets your processor, and the wrong choice means reworking the cabinet. The AUTOMATION DIRECT H2-ERM100 is a remote I/O module for DirectLOGIC DL205 systems, and it is a specific answer for a specific set of CPUs.
Quick verdict
If your CPU is a compatible DL205 model, the H2-ERM100 adds one Ethernet 10/100Base-T port for remote I/O. It is a focused module: one port, one cable, and a clear compatibility window. The price sits at USD 159.00, which makes it a practical option to evaluate for a small remote rack. Just confirm your CPU model first, because compatibility is not universal.
AUTOMATION DIRECT H2-ERM100 / H2ERM100 DirectLOGIC DL205 remote I/O module
Choose the H2-ERM100 when you need a simple Ethernet path between a supported DL205 CPU and remote I/O. The compatibility list covers D2-240, D2-250, D2-250-1, D2-260, D2-262, and Do-more H2 series CPUs, so if your processor is on that list, the module gives you a defined way to connect. The limitation is equally clear: it is not compatible with D2-230 CPUs or H2-WPLCx-xx, so those users need a different approach.
Who it suits
This module suits a control system built around one of the compatible DL205 CPUs. It also suits a cabinet where a single remote I/O drop is enough. For a straightforward remote rack, that is usually sufficient.
What stands out
The headline detail is the single Ethernet 10/100Base-T port. That is the entire remote I/O path, which keeps the module simple. The compatibility list is the other standout: it explicitly names six CPU options including the Do-more H2 series. If you standardize on one of those processors, the H2-ERM100 becomes a straightforward add-on.
Meaningful trade-offs
The main trade-off is the compatibility boundary. The module is not compatible with the D2-230 CPU or H2-WPLCx-xx. If you own either of those processors, this module is not the bridge you need. Also, the condition is new open-box, so it is worth a close look before installation.
Bottom line
At USD 159.00, the AUTOMATION DIRECT H2-ERM100 gives a compatible DL205 system a direct Ethernet route to remote I/O. The narrow CPU compatibility keeps it from being a general-purpose solution, but for the right processor and a simple remote drop, it is a straightforward choice.
