Mitsubishi Electric · AnS / A series · PLC CPU

Mitsubishi Electric A1SHCPU

DiscontinuedMEDIUM

What should replace this part?

Your options

Our analysisMigrate to Q-series platform

OEM renewal guidance routes AnS small-type CPUs to Q-series (Q mode) or L-series platforms with conversion tooling.

Our analysisSource used bridge (probe)

Obsolete-PLC specialists are the expected channel; exact-model listing unverified, so probe with the MLFB.

Replacement analysis

Original: A1SHCPU (A1SH small CPU AnS series)

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Replacement: Q-series / L-series platform (generic)

Relationship: Modern platform migration (not a swap) MEDIUM

Migration / engineering work required — not a drop-in. This is not presented as a drop-in replacement.

Analyst note: OEM series-level HIGH; exact-model replacement generic only. Service ended 2021-09.

What changes?

Hardware	AnS chassis, CPU and base convert to Q series; existing modules are not reusable 1:1 (QA extension base only for staged migration).
Wiring	Field wiring must be reworked for the new bases.
Software	Program converts via the A/QnA-to-Q Conversion Support Tool; GX Developer gives way to GX Works2 or Works3.
I/O	I/O addressing and device-point allocation must be reviewed.

Anything not listed here is unknown — the evidence does not establish it.

Can I still buy the original?

Repair: Unknown — not verifiedUsed: Unknown — not verifiedRefurbished: Unknown — not verified

New-original availability is not claimed unless evidence supports it. Availability is never implied by the existence of a listing alone.

Lifecycle

Status: Discontinued

Discontinuation date: 2014-09-30

Lifecycle source

Evidence

Every important claim traces to a source below. OEM source means the manufacturer published it; third-party source means a distributor, repair company or reseller states it; our analysis connects them — and is labeled as such.

OEM / manufacturer sources

OEM source MEDIUM Mitsubishi Electric · Tier A

AnS/QnAS small-type CPU group production ended Sep 2014; service to Sep 2021

“CPU module ... | End of Sep. 2014 | End of Sep. 2021 | FA-A-0142”

Establishes: modern_platform_migration · View source · Note: Series-group evidence; generic Q/L migration path

Why you might be searching this

AnS CPU fault after the service window closed; what is the Q-mode path?

Related replacement analyses

Mitsubishi Electric FX2N-48MR-UA1/UL — Same plc cpu line

Need help deciding between repair, replacement, or migration?

Request a replacement review for A1SHCPU — repair assessment, sourced original, replacement quote, or migration scoping.

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Research status: done. Confidence MEDIUM reflects the evidence above, not marketing. Commercial paths: Q-system quote · Conversion scoping · Used bridge probe. No search-volume, pricing or revenue claims are made on this page.