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Siemens 6ES7350-1AH01-0AE0 — PLC I/O & Expansion Modules

Siemens 6ES7350-1AH01-0AE0 FM 350-1 Counter Module, 500 kHz

MPN6ES7350-1AH01-0AE0
End of Life

Siemens SIMATIC S7/M7 FM 350-1 counter module, 6ES7350-1AH01-0AE0, 1 channel up to 500 kHz for 5V and 24V incremental encoders.

$620.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7350-1AH01-0AE0 specifications
ParameterValue
Shipping weight1.3 Kg
Packaging dimension13,20 x 15,30 x 5,00
Surcharge for raw materialsee also metal factor (further details are available on the help page)
Standard lead time ex-works1 Day(s)
Compliance with the substance restrictions according to RoHS directiveProduct is not RoHS-compliant
NotesProduct is no longer available. Successor: 6ES7350-1AH03-0AE0
Successor6ES7350-1AH03-0AE0
Metal factorsee also metal factor (further details are available on the help page)
Product group2289
Product classD: products made to order / customer's specifications, requiring engineering services, which cannot be re-used or utilized (design to customer)
Quantity unit0 Piece
PLM effective dateEnd of product lifecycle since: 01.10.2013
Packaging quantity1
Estimated lead timeUsually ships in 1 - 10 working days.
Product descriptionSIMATIC S7/M7, COUNTER MODULE FM 350-1 FOR S7-300 AND M7-300, COUNTER FUNCTIONS UP TO 500 KHZ 1 CHANNEL FOR CONNECTION OF 5V AND 24V INCREMENTAL ENCODERS
Successor descriptionSIMATIC S7-300, COUNTER MODULE FM 350-1 FOR S7-300, COUNTER FUNCTIONS UP TO 500 KHZ 1 CHANNEL FOR CONNECTION OF 5V AND 24V INCREMENTAL ENCODERS ISOCHRON MODE, MEASUREMENT MODE INCL. CONFIG. PACKAGE ON CD
Export control regulationsECCN : N / AL : N
Obligation category for taking back electrical and electronic equipment after useNo obligation to take back electrical and electronic equipment after use

Product details

What this counter module does in an S7-300 rack

The Siemens 6ES7350-1AH01-0AE0 is a single-channel counter module for the S7-300 and M7-300 PLC families, accepting 5V and 24V incremental encoder inputs at rates up to 500 kHz. It fits a standard S7-300 slot and communicates over the backplane bus — no separate fieldbus gateway needed.

Encoder compatibility and signal handling

The FM 350-1 accepts 5V and 24V incremental encoder inputs at rates up to 500 kHz. Single-channel design means one encoder per module. If the application requires multiple axes, stack additional FM 350-1 modules in adjacent S7-300 slots — each occupies one slot and draws its power from the backplane.

Sourcing the original vs. migrating to the successor

The successor 6ES7350-1AH03-0AE0 is the drop-in hardware replacement — same form factor, same slot, same encoder types. The key delta is software: the newer module supports isochronous mode for deterministic timestamping and includes a measurement mode, delivered with a configuration package on CD. Existing STEP 7 projects may need a hardware catalog update to recognize the new order code.

Frequently asked questions

What is the replacement for 6ES7350-1AH01-0AE0?

The official Siemens successor is 6ES7350-1AH03-0AE0. It adds isochronous mode and measurement mode, plus a configuration CD, while maintaining the same 500 kHz single-channel counter function for 5V and 24V incremental encoders.

Does the FM 350-1 module work with 24V incremental encoders?

Yes, the FM 350-1 accepts both 5V and 24V incremental encoder inputs directly, no external signal conditioning required. Count rate is up to 500 kHz.

MPN
6ES7350-1AH01-0AE0