PLC base unit, 20 I/O points
The Delta DVP20EH00R2 is a 20-point main processing unit in the DVP Series — a compact base unit sized for small- to medium-scale control tasks where the I/O count and program memory live on the CPU itself, no expansion rack required. The 20-point count tells you the combined input and output channels on the base module; for a line-down swap or a new build, that fixed I/O budget means the CPU choice is final — no adding a few more points without swapping the unit or adding an extension module.
Peer comparison
The DVP20EH00R2 shares its 20-point base-unit form factor with the DVP20EH00R3, DVP20EH00T2, and DVP20EH00T3. The letter after the I/O count indicates output type — R for relay, T for transistor. If your panel was wired around a relay-output R2, the R3 carries the same relay type, so it drops in without rewiring the load side. A T2 or T3 transistor-output unit would require changing the output wiring and verifying sink/source logic.
Integration into a panel
Mounts on a DIN rail inside the control enclosure. The 20-point footprint is standard for the DVP series — same width as the other EH3 base units, so a panel layout designed for a 20-point Delta CPU accepts this unit without re-drilling or re-routing the wiring duct. Power and I/O connections land on fixed screw terminals; verify the input voltage range on the nameplate before applying line power.