EOL replacement finder

ACCON-NetLink-USB compact

Your automation part went EOL — here is every way out, with the compatibility catch on each one.

Manufacturer: DELTALOGIC (now Softing Industrial)
Category: Programming adapter

Lifecycle status

Discontinued in effect. DELTALOGIC was acquired by Softing Industrial in April 2025 and the brand folded into Softing; deltalogic.de is offline. Softing's catalogue carries the ACCON-NetLink-PRO compact, an Ethernet adapter, but has no product page for the USB compact. Helmholz's equivalent NETLink USB compact is discontinued as well, so the USB form factor is disappearing across vendors and the forum's replacement suggestions are partly used-market.

Replacement paths, side by side

The decisive attribute in this vertical is software and runtime compatibility, not electrical specs. Read the compatibility column before the price column.

Route	What	Price band	Availability	Compatibility — the dealbreakers
Official successor	ACCON-NetLink-PRO compact Softing Industrial (formerly DELTALOGIC)	Softing publishes no list price; quoted on request.	Current product in Softing Industrial's catalogue (161701-PRO)	Same PLC side (MPI, PROFIBUS, PPI) but the PC side is Ethernet instead of USB, so a laptop without a spare network port or a locked-down IT setup is the catch. Driver and access-path configuration in STEP 7 / TIA change. Why this matters ⌄
Caveat: Listed by Softing as a current product after the brand migration, so this is the vendor position; the forum thread reached for used units and third-party adapters first.
Compatible third party	NETLink PRO compact (700-884-MPI21) Helmholz	Helmholz publishes no list prices; its S7 components catalogue directs buyers to request a quote.	Distributor and direct	Cross-vendor equivalent of the PRO compact, so also Ethernet on the PC side, not USB. Driver and access-path setup differ from the Accon tooling. Why this matters ⌄
Caveat: Helmholz's own USB variant, NETLink USB compact (700-892-MPI21), is marked discontinued by its Benelux distributor, so there is no USB option from Helmholz either. discussed on SPS-Forum →
Compatible third party	S7 programming adapter Process Informatik	€317 net (plus VAT and shipping), vendor list price Process Informatik, 2026-09-04	Direct from Process Informatik	Cross-vendor equivalent. Driver and software setup differ. Why this matters ⌄
Caveat: The one route on this list that keeps the USB form factor, which matters for a laptop without a free network port. discussed on SPS-Forum →
Used / refurbished	Used ACCON-NetLink-USB compact Broker market	Not established in research	Named as the first suggestion in the forum thread	Identical - nothing to change. Why this matters ⌄
Caveat: The community reached for the used market before any new product, which is itself a signal about the new options. discussed on SPS-Forum →

Where the research did not establish a figure, this page says so rather than estimating one. A number you cannot defend is worse than no number.

What the community actually said

These pages are built from forum threads, not brochures. The tacit gotchas — the ones that are not on any datasheet — live in these discussions.

Replacement for Accon Net-Link USB compact · SPS-Forum.de

Links open a search on the forum the discussion took place on. German thread titles are given here in English translation.

Manufacturer sources

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