Rated at 512K words, this cassette roughly doubles the program capacity of a base CP1E CPU, which typically ships with 256K words. That headroom matters if you are adding function blocks, data tables, or a Modbus RTU master block that consumes ladder memory. The CP1W-ME05M is the only memory cassette option for the CP1E line — no other capacity tier exists in this form factor, so the choice is binary: fit it or don't.
Omron CP1W-ME05M Memory Cassette, 512K Words, for CP1E Serie
MPNCP1W-ME05M
Active
Omron CP1W series, Option Card Memory, CP1W-ME05M, 512K Words, for CP1E Series.
$43.05 – $106.73Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Series | CP1W |
Other specifications
| Parameter | Value |
|---|---|
| Accessory type | Option Card, Memory |
| Specifications | 512K Words |
Product details
Frequently asked questions
What is the closest alternative to the CP1W-ME05M in this family?
There is no alternative memory cassette for the CP1E series — the CP1W-ME05M is the only option. For the CP1H or CP1L series, Omron offers different memory cassette order codes that are not pin-compatible with the CP1E slot.
What series does the CP1W-ME05M belong to?
It belongs to the CP1W series of option cards and accessories for Omron CP1-family PLCs.
What is the package type of the CP1W-ME05M?
The listed package is Bulk, meaning it ships as a single unit in standard packaging.
MPN
CP1W-ME05M