Sold-price comps for industrial automation parts DATA AS OF 2026-10-17

1747-L542 Sold Price History

Allen-Bradley · observed sold prices, the 90 days ending October 17, 2026

As of 2026-10-17, PLCComps.com recorded 79 eBay sold listings for the 1747-L542 in the 90 days ending 2026-10-17: median $120, range $39.99 to $5,279. Used units: 44 sold, median $77.00. Price varies with condition.

Sold listings (90d)79
Median sold$120
Sold range$39.99–$5,279
Median ask*$100
Sold vs ask+20%

Lifecycle status: Discontinued per Rockwell Automation, checked 2026-10-17.

Median sold price by condition

ConditionSoldMedianRange
New / surplus22$281$219–$1,200
Open box9$800$39.99–$5,279
Refurbished4$85.00$59.76–$395
Used44$77.00$40.00–$215
Median sold ($120) vs median asking price across covered sellers ($100): +20%. Condition mix differs between sold and asking listings; see methodology.
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Individual sold listings (79)

DateListingConditionSold price
2026-10-151PC NEW 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT 1747L542 Fast ShipBrand New$224
2026-10-10Allen-Bradley 1747-l542 Ser B Proc Rev3 SLC 500 Processor UnitPre-Owned$70.57
2026-10-071PCS 1747-L542Brand New$219
2026-10-07Allen Bradley 1747-L542 Ser. C Rev 7 SLC 500 Processor Unit Excellent ConditionPre-Owned$165
2026-10-06Allen-Bradley 1747-L542 Ser B Processor UnitPre-Owned$75.00
2026-10-06Allen Bradley 1747-L542 SLC 500 CPU Processor Unit (No Key)Refurbished$75.00
2026-10-06ALLEN BRADLEY 1747-L542 PLC PROCESSORPre-Owned$80.00
2026-10-06Allen Bradley 1747-L542 Ser B Rev. 3 SLC 500 Processor Unit (No Keys or Cover)Pre-Owned$74.99
2026-10-06Allen Bradley 1747-L542 /A SLC Processor Unit (4.5.5)Pre-Owned$54.05
2026-10-06ALLEN-BRADLEY 1747-L542 SLC 5/04 32K PROCESSORPre-Owned$48.75
2026-10-06Allen-Bradley 1747-L542 SLC 500 Processor Unit Series APre-Owned$59.99
2026-10-06Allen-Bradley 1747-L542 SLC 500 Processor Unit Series APre-Owned$54.98
2026-10-06Allen Bradley 1747-L542 /B SLC 500 Processor Control Module w/ OS401/B FRN 9Pre-Owned$80.00
2026-10-06Allen-Bradley SLC 500 Processor Unit SLC 5/04 CPU MPN 1747-L542 Model 1747-L542Pre-Owned$55.00
2026-10-06Allen Bradley 1747-L542 Ser A/2 SLC 500 CPU Processor Unit 1747-OS401 Ser C/3Pre-Owned$79.95
2026-09-27Allen Bradley 1747-L542 Ser B 1747-OS401 SLC 500 5/04 504 CPU Processor Unit 32KPre-Owned$75.00
2026-09-24Allen-Bradley SLC 1747-L542Pre-Owned$44.99
2026-09-24USED - 1747-L542 SLC 500 Processor Unit Series BPre-Owned$49.95
2026-09-21REFURBISHED AB 1747L542 SER D SLC 500 5/04 CPU PROCESSOR UNIT AB 32KRefurbished$395
2026-09-21New Sealed AB 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT 1747L542 US Free TaxBrand New$273
2026-09-18US 1747-L542 /C SLC 500 5/04 CPU Processor Unit 1747L542 New Factory Sealed TXPre-Owned$200
2026-09-17USED Allen Bradley 1747-L542 SLC 500 Processor Unit Series B Proc. Rev. 3Pre-Owned$79.00
2026-09-16Allen Bradley 1747-L542 Ser B SLC 500 5/04 CPU Processor 32K Memory 1747L542 PLCPre-Owned$45.85
2026-09-151747-L542 NEW AB 1747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT Real US StockBrand New$250
2026-09-15Allen-Bradley 1747-L542 SLC 500 SLC 5/04 CPU 32K Series D DH+ RS232Pre-Owned$120
2026-09-15Allen-Bradley 1747-L542 SLC 500 SLC 5/04 CPU 32K Series D DH+ RS232Pre-Owned$120
2026-09-15Allen-Bradley 1747-L542 SLC 500 SLC 5/04 CPU 32K Series D DH+ RS232Pre-Owned$120
2026-09-14Allen-Bradley 1747-L542 SLC 500 SLC 5/04 CPU 32K Series D DH+ RS232Pre-Owned$120
2026-09-11new Allen Bradley 1747-L542Brand New$1,200
2026-09-09Allen Bradley SLC 500 Processor Unit 1747-L542 Ser B PROC. REV 3Pre-Owned$69.00
2026-09-07Allen-Bradley SLC 500 PLC Processor Unit 1747-L542 Series C (FRN 9)Pre-Owned$80.00
2026-09-07Allen Bradley 1747-L542 Processor Module Ser ANew – Open box$39.99
2026-09-03Allen Bradley 1747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT AB 1747L542New – Open box$150
2026-09-01New open box Allen Bradley 1747-L542 Series D SLC 500 5/04 16K PLC Processor USNew – Open box$320
2026-08-31Allen-Bradley 1747-L542 PLC Processor ModulePre-Owned$141
2026-08-29Allen Bradley 1747-L542 /B Rev 3 SLC 500 5/04 CPU w/KeyPre-Owned$65.00
2026-08-28Allen-Bradley 1747-L542 Ser B Rev 3 SLC 500 CPU Processor Unit / No Key or CoverPre-Owned$215
2026-08-28New AB 1747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT Allen Bradley 1747L542Brand New$346
2026-08-26Allen-Bradley SLC 500 SLC 5/04 CPU Processor Unit/Module 1747-L542 SER CPre-Owned$61.00
2026-08-25Allen Bradley 1747-L542 / APre-Owned$85.00
2026-08-251747-L542 | Allen-Bradley SLC 5/04 CPU Controller 32K DH+ & RS-232 PortsBrand New$449
2026-08-19Open Pre-owned Allen Bradley 1747-L542 /D SLC 500 5/04 32K RS232/DH+ ControllerNew – Open box$1,559
2026-08-17Allen-Bradley 1747-L542 SLC 500 5/04 CPU Processor Module Ser.C Rev 7Pre-Owned$69.99
2026-08-15Allen Bradley 1747-L542 Ser A - SLC 500 5/04 CPU 32KPre-Owned$94.23
2026-08-141 PC New Factory Sealed AB 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT US Free TaxBrand New$228
2026-08-14Allen-Bradley 1747-L542 ser B rev 3 SLC 500 PLC CPU ProcessorRefurbished$95.00
2026-08-141747-L542 NEW AB 1747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT Real US StockBrand New$298
2026-08-14New Factory Sealed Allen-Bradley 1747-L542 /C SLC 500 5/04 CPU PROCESSOR UNITBrand New$281
2026-08-14Allen-Bradley NEW Sealed 1747-L542 SLC 500 5/04 CPU PROCESSOR UNITBrand New$339
2026-08-13Allen Bradley 1747-L542 /B Rev 3 SLC 500 5/04 CPU (4.3.3)Refurbished$59.76
2026-08-13AB 1747-L542 /B SLC 500 5/04 CPU PROCESSOR UNIT Factory Sealed AB US Free TaxBrand New$254
2026-08-12Allen Bradley slc 5/04 cpu 1747-L542 Fully TestedPre-Owned$99.00
2026-08-11AB 1747-L542 /B SLC 500 5/04 CPU PROCESSOR UNIT Factory Sealed AB US Free TaxBrand New$269
2026-08-08Allen-Bradley SLC500 Processor Unit 1747-L542 Ser.BBrand New$249
2026-08-07LOT of (3) 1747-L542 SLC CPU Processor UnitNew – Open box$5,279
2026-08-06Allen Bradley 1747-L542 SLC 500 Processor Unit SLC 5/04 CPU Ser C Rev 7Pre-Owned$79.99
2026-08-06Allen-Bradley 1747-L542 SLC 5/04 32K ControllerPre-Owned$40.00
2026-08-04Allen-Bradley 1747-L542 SLC 500 Processor Unit Series B. Proc Rev 3Pre-Owned$53.00
2026-08-03NEW DISCOUNTED Allen-Bradley 1747-L542/CBrand New$219
2026-07-30Allen Bradley 1747-L542 Processor Module Ser B - NO KEYPre-Owned$47.50
2026-07-29Allen Bradley SLC 5/04 1747-L542 CPUPre-Owned$100
2026-07-28Allen Bradley 1747-L542 /C SLC 500 5/04 PLC 1747L542 N241Pre-Owned$149
2026-07-281747-L542 NEW AB 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT US Same Day ShipBrand New$298
2026-07-27Allen Bradley 1747-L542 SLC 500 5/04 Processor-New No BoxNew – Open box$382
2026-07-27New Factory Sealed Allen-Bradley 1747-L542 /C SLC 500 5/04 CPU PROCESSOR UNITBrand New$250
2026-07-27Allen Bradley 1747-L542 SER C SLC 500 PLC Processor (TESTED)Pre-Owned$79.99
2026-07-27Surplus Allen Bradley 1747-L542 /C SLC 500 5/04 RS-232/DH+ 32K ControllerNew – Open box$1,900
2026-07-27NEW Allen Bradley 1747-L542 SLC 5/04 PLC Processor Controller 32K Series C FW7New – Open box$800
2026-07-24AB 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT 1747L542 NEW Factory SealedBrand New$300
2026-07-23Allen Bradley 1747-L542 /C Processor Unit SLC500 Operating System 1747-OS401/CPre-Owned$99.99
2026-07-23Allen-Bradley 1747-L542/B Processor/Controller. Loc3A-10Pre-Owned$125
2026-07-23Allen Bradley AB SLC 500 1747-L542 SER B Proc. Rev 3 1747L542Pre-Owned$49.99
2026-07-23allen bradley 1747-l542 SLC 500 processor unitPre-Owned$60.00
2026-07-23Allen Bradley 1747-L542 Processor Module Ser APre-Owned$44.95
2026-07-22New Factory Sealed Allen-Bradley 1747-L542 /C SLC 500 5/04 CPU PROCESSOR UNITBrand New$281
2026-07-22New Allen Bradley 1747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT 1747L542Brand New$281
2026-07-21New Sealed AB 1747-L542 SLC 500 5/04 CPU PROCESSOR UNIT 1747L542 US Free TaxBrand New$281
2026-07-20Surplus Open Allen Bradley 1747-L542 /C SLC 500 SLC 5/04 RS-232/DH+ ControllerNew – Open box$1,260
2026-07-201747-L542 SER C SLC 500 5/04 CPU PROCESSOR UNIT New Sealed Allen BradleyBrand New$380

Related tracked parts

*Asking prices aggregated across 10 covered sellers, observed 25 Aug 2026.

Data captured October 17, 2026. Sold prices are individual observed eBay transactions, title-matched to 1747-L542. All tracked parts