PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7321-1CH00-0AA0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
185
Recorded quantity sold
13
Median recorded price
$259.94166 US-dollar records
Recorded price range
$6.95to $1986.84 USD
First listing start: 09 Apr 2017Last listing start: 22 Jun 2026

Recorded price history

USD
Recorded US-dollar price historyLogarithmic price scale (price + 1). Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.01101001000Apr 2017Jul 2019Nov 2021Mar 2024Jun 20262017-04-09: US$70.00; no sale recorded2017-05-09: US$70.00; no sale recorded2017-06-09: US$70.00; no sale recorded2017-06-09: US$105.00; no sale recorded2017-07-06: US$308.75; no sale recorded2017-07-29: US$148.64; no sale recorded2017-09-21: US$277.00; no sale recorded2017-10-11: US$70.00; no sale recorded2017-11-10: US$70.00; no sale recorded2017-12-08: US$45.00; no sale recorded2017-12-10: US$70.00; no sale recorded2018-01-09: US$70.00; no sale recorded2018-01-10: US$170.80; no sale recorded2018-01-24: US$313.00; no sale recorded2018-02-08: US$70.00; no sale recorded2018-03-11: US$70.00; no sale recorded2018-04-10: US$70.00; no sale recorded2018-04-19: US$472.70; no sale recorded2018-05-10: US$70.00; no sale recorded2018-06-22: US$306.85; no sale recorded2018-07-01: US$70.00; no sale recorded2018-08-14: US$266.05; no sale recorded2018-08-16: US$150.00; no sale recorded2018-09-01: US$70.00; no sale recorded2018-10-17: US$150.00; no sale recorded2019-01-25: US$73.00; no sale recorded2019-01-25: US$73.00; no sale recorded2019-09-24: US$269.66; no sale recorded2019-10-09: US$307.95; no sale recorded2019-10-17: US$268.70; no sale recorded2019-10-20: US$80.00; no sale recorded2019-10-29: US$269.78; no sale recorded2019-11-06: US$53.00; no sale recorded2019-11-15: US$129.99; no sale recorded2019-11-27: US$262.20; no sale recorded2019-12-15: US$232.89; no sale recorded2019-12-16: US$129.00; no sale recorded2019-12-26: US$239.99; no sale recorded2020-01-06: US$259.99; no sale recorded2020-01-07: US$266.00; no sale recorded2020-05-14: US$259.98; no sale recorded2020-05-14: US$259.97; no sale recorded2020-05-14: US$259.96; no sale recorded2020-05-14: US$259.94; no sale recorded2020-06-12: US$249.09; no sale recorded2020-10-20: US$490.20; no sale recorded2020-12-10: US$514.13; no sale recorded2020-12-17: US$260.00; no sale recorded2021-01-13: US$262.00; no sale recorded2021-01-23: US$247.85; no sale recorded2021-01-23: US$247.83; no sale recorded2021-01-23: US$247.82; no sale recorded2021-01-23: US$259.93; no sale recorded2021-01-23: US$259.92; no sale recorded2021-01-25: US$247.80; no sale recorded2021-03-07: US$308.75; no sale recorded2021-06-04: US$89.92; no sale recorded2021-06-16: US$259.69; no sale recorded2021-06-16: US$259.68; no sale recorded2021-06-16: US$259.67; no sale recorded2021-06-16: US$259.66; no sale recorded2021-06-16: US$259.65; no sale recorded2022-02-23: US$259.69; no sale recorded2022-02-23: US$259.68; no sale recorded2022-02-23: US$259.67; no sale recorded2022-02-23: US$259.66; no sale recorded2022-02-23: US$259.65; no sale recorded2022-04-06: US$385.98; no sale recorded2022-04-19: US$533.33; no sale recorded2022-04-21: US$385.98; no sale recorded2022-04-23: US$538.10; no sale recorded2022-05-12: US$1986.84; no sale recorded2022-05-19: US$326.00; no sale recorded2022-07-10: US$399.99; no sale recorded2022-08-03: US$402.00; no sale recorded2022-08-18: US$344.53; no sale recorded2022-08-25: US$419.00; no sale recorded2022-11-02: US$204.88; no sale recorded2022-11-07: US$600.00; no sale recorded2022-11-17: US$326.00; no sale recorded2022-12-01: US$1245.00; no sale recorded2022-12-09: US$326.00; no sale recorded2023-01-09: US$288.00; no sale recorded2023-01-27: US$326.00; no sale recorded2023-02-10: US$259.66; no sale recorded2023-02-10: US$259.67; no sale recorded2023-02-10: US$259.69; no sale recorded2023-02-10: US$259.70; no sale recorded2023-02-25: US$332.82; no sale recorded2023-03-03: US$337.00; no sale recorded2023-03-08: US$326.00; no sale recorded2023-04-10: US$712.00; no sale recorded2023-05-23: US$362.05; no sale recorded2023-07-17: US$161.29; no sale recorded2023-08-17: US$259.67; sold recorded2023-08-17: US$259.66; sold recorded2023-08-17: US$259.69; no sale recorded2023-08-29: US$591.77; no sale recorded2023-09-04: US$538.10; no sale recorded2023-09-06: US$75.00; no sale recorded2023-09-13: US$75.00; no sale recorded2023-09-20: US$75.00; no sale recorded2023-09-27: US$75.00; no sale recorded2023-10-04: US$75.00; no sale recorded2023-10-11: US$75.00; no sale recorded2023-10-12: US$280.00; no sale recorded2023-10-18: US$75.00; no sale recorded2023-10-25: US$75.00; no sale recorded2024-01-01: US$343.96; sold recorded2024-01-01: US$9.99; no sale recorded2024-01-07: US$343.96; no sale recorded2024-01-07: US$6.95; no sale recorded2024-04-17: US$16.00; no sale recorded2024-04-24: US$557.61; no sale recorded2024-04-25: US$499.80; sold recorded2024-04-26: US$499.79; no sale recorded2024-05-31: US$326.00; no sale recorded2024-06-03: US$215.00; no sale recorded2024-06-13: US$322.92; no sale recorded2024-06-14: US$503.00; no sale recorded2024-06-19: US$299.01; no sale recorded2024-06-28: US$119.00; no sale recorded2024-07-01: US$303.49; no sale recorded2024-07-26: US$272.56; sold recorded2024-08-07: US$293.02; sold recorded2024-08-10: US$299.00; no sale recorded2024-08-10: US$278.00; no sale recorded2024-08-21: US$246.86; sold recorded2024-08-29: US$296.02; no sale recorded2024-09-27: US$597.00; no sale recorded2024-10-02: US$293.70; no sale recorded2024-10-09: US$212.61; sold recorded2024-10-12: US$533.33; sold recorded2024-10-12: US$19.99; no sale recorded2024-11-08: US$212.62; sold recorded2024-11-14: US$298.97; no sale recorded2024-11-14: US$208.39; no sale recorded2024-12-03: US$300.46; no sale recorded2024-12-04: US$208.39; sold recorded2024-12-13: US$259.72; no sale recorded2025-02-24: US$260.35; no sale recorded2025-02-24: US$290.12; no sale recorded2025-03-07: US$256.32; no sale recorded2025-03-27: US$308.08; no sale recorded2025-04-02: US$218.11; no sale recorded2025-04-11: US$261.73; no sale recorded2025-05-10: US$229.02; no sale recorded2025-05-11: US$229.28; no sale recorded2025-05-24: US$228.00; no sale recorded2025-08-13: US$535.00; no sale recorded2025-08-14: US$533.00; no sale recorded2025-08-27: US$194.00; no sale recorded2025-09-27: US$625.09; no sale recorded2025-10-04: US$529.10; no sale recorded2025-10-07: US$400.00; no sale recorded2025-10-12: US$199.00; no sale recorded2025-12-13: US$153.00; no sale recorded2025-12-18: US$671.71; no sale recorded2026-01-21: US$672.69; no sale recorded2026-02-03: US$394.96; no sale recorded2026-02-06: US$395.00; no sale recorded2026-02-21: US$737.31; no sale recorded2026-02-23: US$99.95; no sale recorded2026-04-22: US$735.18; no sale recorded2026-05-16: US$507.25; no sale recorded2026-06-22: US$717.83; no sale recordedRecorded US-dollar price historyLogarithmic price scale (price + 1). Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.01101001000Apr 2017Nov 2021Jun 20262017-04-09: US$70.00; no sale recorded2017-05-09: US$70.00; no sale recorded2017-06-09: US$70.00; no sale recorded2017-06-09: US$105.00; no sale recorded2017-07-06: US$308.75; no sale recorded2017-07-29: US$148.64; no sale recorded2017-09-21: US$277.00; no sale recorded2017-10-11: US$70.00; no sale recorded2017-11-10: US$70.00; no sale recorded2017-12-08: US$45.00; no sale recorded2017-12-10: US$70.00; no sale recorded2018-01-09: US$70.00; no sale recorded2018-01-10: US$170.80; no sale recorded2018-01-24: US$313.00; no sale recorded2018-02-08: US$70.00; no sale recorded2018-03-11: US$70.00; no sale recorded2018-04-10: US$70.00; no sale recorded2018-04-19: US$472.70; no sale recorded2018-05-10: US$70.00; no sale recorded2018-06-22: US$306.85; no sale recorded2018-07-01: US$70.00; no sale recorded2018-08-14: US$266.05; no sale recorded2018-08-16: US$150.00; no sale recorded2018-09-01: US$70.00; no sale recorded2018-10-17: US$150.00; no sale recorded2019-01-25: US$73.00; no sale recorded2019-01-25: US$73.00; no sale recorded2019-09-24: US$269.66; no sale recorded2019-10-09: US$307.95; no sale recorded2019-10-17: US$268.70; no sale recorded2019-10-20: US$80.00; no sale recorded2019-10-29: US$269.78; no sale recorded2019-11-06: US$53.00; no sale recorded2019-11-15: US$129.99; no sale recorded2019-11-27: US$262.20; no sale recorded2019-12-15: US$232.89; no sale recorded2019-12-16: US$129.00; no sale recorded2019-12-26: US$239.99; no sale recorded2020-01-06: US$259.99; no sale recorded2020-01-07: US$266.00; no sale recorded2020-05-14: US$259.98; no sale recorded2020-05-14: US$259.97; no sale recorded2020-05-14: US$259.96; no sale recorded2020-05-14: US$259.94; no sale recorded2020-06-12: US$249.09; no sale recorded2020-10-20: US$490.20; no sale recorded2020-12-10: US$514.13; no sale recorded2020-12-17: US$260.00; no sale recorded2021-01-13: US$262.00; no sale recorded2021-01-23: US$247.85; no sale recorded2021-01-23: US$247.83; no sale recorded2021-01-23: US$247.82; no sale recorded2021-01-23: US$259.93; no sale recorded2021-01-23: US$259.92; no sale recorded2021-01-25: US$247.80; no sale recorded2021-03-07: US$308.75; no sale recorded2021-06-04: US$89.92; no sale recorded2021-06-16: US$259.69; no sale recorded2021-06-16: US$259.68; no sale recorded2021-06-16: US$259.67; no sale recorded2021-06-16: US$259.66; no sale recorded2021-06-16: US$259.65; no sale recorded2022-02-23: US$259.69; no sale recorded2022-02-23: US$259.68; no sale recorded2022-02-23: US$259.67; no sale recorded2022-02-23: US$259.66; no sale recorded2022-02-23: US$259.65; no sale recorded2022-04-06: US$385.98; no sale recorded2022-04-19: US$533.33; no sale recorded2022-04-21: US$385.98; no sale recorded2022-04-23: US$538.10; no sale recorded2022-05-12: US$1986.84; no sale recorded2022-05-19: US$326.00; no sale recorded2022-07-10: US$399.99; no sale recorded2022-08-03: US$402.00; no sale recorded2022-08-18: US$344.53; no sale recorded2022-08-25: US$419.00; no sale recorded2022-11-02: US$204.88; no sale recorded2022-11-07: US$600.00; no sale recorded2022-11-17: US$326.00; no sale recorded2022-12-01: US$1245.00; no sale recorded2022-12-09: US$326.00; no sale recorded2023-01-09: US$288.00; no sale recorded2023-01-27: US$326.00; no sale recorded2023-02-10: US$259.66; no sale recorded2023-02-10: US$259.67; no sale recorded2023-02-10: US$259.69; no sale recorded2023-02-10: US$259.70; no sale recorded2023-02-25: US$332.82; no sale recorded2023-03-03: US$337.00; no sale recorded2023-03-08: US$326.00; no sale recorded2023-04-10: US$712.00; no sale recorded2023-05-23: US$362.05; no sale recorded2023-07-17: US$161.29; no sale recorded2023-08-17: US$259.67; sold recorded2023-08-17: US$259.66; sold recorded2023-08-17: US$259.69; no sale recorded2023-08-29: US$591.77; no sale recorded2023-09-04: US$538.10; no sale recorded2023-09-06: US$75.00; no sale recorded2023-09-13: US$75.00; no sale recorded2023-09-20: US$75.00; no sale recorded2023-09-27: US$75.00; no sale recorded2023-10-04: US$75.00; no sale recorded2023-10-11: US$75.00; no sale recorded2023-10-12: US$280.00; no sale recorded2023-10-18: US$75.00; no sale recorded2023-10-25: US$75.00; no sale recorded2024-01-01: US$343.96; sold recorded2024-01-01: US$9.99; no sale recorded2024-01-07: US$343.96; no sale recorded2024-01-07: US$6.95; no sale recorded2024-04-17: US$16.00; no sale recorded2024-04-24: US$557.61; no sale recorded2024-04-25: US$499.80; sold recorded2024-04-26: US$499.79; no sale recorded2024-05-31: US$326.00; no sale recorded2024-06-03: US$215.00; no sale recorded2024-06-13: US$322.92; no sale recorded2024-06-14: US$503.00; no sale recorded2024-06-19: US$299.01; no sale recorded2024-06-28: US$119.00; no sale recorded2024-07-01: US$303.49; no sale recorded2024-07-26: US$272.56; sold recorded2024-08-07: US$293.02; sold recorded2024-08-10: US$299.00; no sale recorded2024-08-10: US$278.00; no sale recorded2024-08-21: US$246.86; sold recorded2024-08-29: US$296.02; no sale recorded2024-09-27: US$597.00; no sale recorded2024-10-02: US$293.70; no sale recorded2024-10-09: US$212.61; sold recorded2024-10-12: US$533.33; sold recorded2024-10-12: US$19.99; no sale recorded2024-11-08: US$212.62; sold recorded2024-11-14: US$298.97; no sale recorded2024-11-14: US$208.39; no sale recorded2024-12-03: US$300.46; no sale recorded2024-12-04: US$208.39; sold recorded2024-12-13: US$259.72; no sale recorded2025-02-24: US$260.35; no sale recorded2025-02-24: US$290.12; no sale recorded2025-03-07: US$256.32; no sale recorded2025-03-27: US$308.08; no sale recorded2025-04-02: US$218.11; no sale recorded2025-04-11: US$261.73; no sale recorded2025-05-10: US$229.02; no sale recorded2025-05-11: US$229.28; no sale recorded2025-05-24: US$228.00; no sale recorded2025-08-13: US$535.00; no sale recorded2025-08-14: US$533.00; no sale recorded2025-08-27: US$194.00; no sale recorded2025-09-27: US$625.09; no sale recorded2025-10-04: US$529.10; no sale recorded2025-10-07: US$400.00; no sale recorded2025-10-12: US$199.00; no sale recorded2025-12-13: US$153.00; no sale recorded2025-12-18: US$671.71; no sale recorded2026-01-21: US$672.69; no sale recorded2026-02-03: US$394.96; no sale recorded2026-02-06: US$395.00; no sale recorded2026-02-21: US$737.31; no sale recorded2026-02-23: US$99.95; no sale recorded2026-04-22: US$735.18; no sale recorded2026-05-16: US$507.25; no sale recorded2026-06-22: US$717.83; no sale recorded
Sold recordedNo sale recordedMonthly median

Logarithmic price scale (price + 1). Dates are listing starts.

Median recorded price, all years$259.94

166 plotted records from 166 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

185 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
22 Jun 2026Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 117263225874New$717.830Recorded activeDE
16 May 2026Siemens SIMATIC S7-300 6ES7 321-1CH00-0AA0 E:06 Digital Input SM 321 -used-eBay 168379925584Gebraucht133.69 [DE]0Recorded activeDE
16 May 20261Pc New Siemens 6ES7 321-1CH00-0AA0 Digital Module bu*ieeBay 406930175696New$507.250Recorded activeCN
15 May 20261PC New In Box Siemens 6ES7 321-1CH00-0AA0 One Year Warranty #eBay 157911619054Neu378.27 [DE]0Recorded activeCN
13 May 2026Siemens SIMATIC S7 6ES7 321-1CH00-0AA0 E-Stand: 03 Digital Input SM 321 -used-eBay 406924682941Gebraucht135.00 [DE]0Recorded activeDE
22 Apr 2026Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 117157217824New$735.180Recorded activeDE
03 Mar 2026Siemens SIMATIC S7-300 6ES7 321-1CH00-0AA0 E:06 Digital Input SM 321 -used-eBay 406735253793Gebraucht134.41 [DE]0Recorded activeDE
23 Feb 2026Siemens Simatic S7 6ES7 321-1CH00-0AA0 Digital Input Module 16 Channel USED 24VeBay 257375562614Used$99.950Recorded activeUS
21 Feb 2026Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 117049148013New$737.310Recorded activeDE
06 Feb 20261PCS New Siemens 6ES7 321-1CH00-0AA0 Digital Module Fast ShipeBay 406672680785New$395.000Recorded activeCN
03 Feb 2026SIEMENS 6ES7 321-1CH00-0AA0 Module #eBay 188021347775New$394.960Recorded activeCN
21 Jan 2026Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 116994412779New$672.690Recorded activeDE
28 Dec 2025Siemens SIMATIC S7-300 6ES7 321-1CH00-0AA0 E:06 Digital Input SM 321 -used-eBay 406530529310Gebraucht135.38 [DE]0Recorded activeDE
27 Dec 2025Siemens SIMATIC S7 6ES7 321-1CH00-0AA0 E-Stand: 03 Digital Input SM 321 -used-eBay 406526617541Gebraucht135.38 [DE]0Recorded activeDE
18 Dec 2025Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 116933711417New$671.710Recorded activeDE
13 Dec 20251Pcs Used Siemens modules 6ES7 321-1CH00-0AA0eBay 127560041526Used$153.000Recorded activeCN
12 Oct 2025Siemens SIMATIC S7 6ES7 321-1CH00-0AA0 E-Stand: 03 Digitaleingabe SM 321 -used-eBay 365916577101Used$199.000Recorded activeUS
07 Oct 20251Pc New Siemens 6ES7 321-1CH00-0AA0 Digital Module zueBay 389064216640New$400.000Recorded activeCN
04 Oct 20251Pc New Siemens 6ES7 321-1CH00-0AA0 Digital Module bueBay 127412055750New$529.100Recorded activeCN
27 Sep 2025Siemens Simatic S7-300 6ES7 321-1CH00-0AA0 FS:6 SM321 DI16xUCeBay 116798849563New$625.090Recorded activeDE
27 Aug 20251PCS New Siemens 6ES7 321-1CH00-0AA0 Digital Module Fast ShipeBay 365825623474New$194.000Recorded activeCN
14 Aug 20251Pc New Siemens 6ES7 321-1CH00-0AA0 Digital Module bueBay 406131513648New$533.000Recorded activeCN
13 Aug 20251Pc New Siemens 6ES7 321-1CH00-0AA0 Digital Module bueBay 286763728900New$535.000Recorded activeCN
24 May 20251PCS New Siemens 6ES7 321-1CH00-0AA0 Digital ModuleeBay 127132436996New$228.000Recorded activeCN
11 May 20251PCS New Siemens 6ES7 321-1CH00-0AA0 Digital Module eBay 205479272615New$229.280Recorded activeCN
How to read these records

Dollar amounts are recorded US-dollar prices. Bracketed labels identify other marketplaces, whose currency was not recorded. Recorded quantities sold indicate marketplace activity. Recorded active is the status retained in the archive.

Browse neighboring part numbers by prefix

Neighboring part numbers

321-1BLOO-OAAO321-1BP00-0AA0321-1C20-0AA06ES7321-1CH20-0AA0321-1CH20-2AA06ES7321-1CH80-0AA0

Related part numbers

6ES7331-7KF02-0AB03VL1725-1EH43-0AA06EP3310-6SB00-0AY06SN1123-1AA00-0CA16ES7141-5BF00-0BA06SN1145-1AA01-0AA16ES7334-0KE00-0AB06ES7131-6BF00-0CA03VA2340-6HN32-0AA03VA2463-6HN32-0AA06SN1118-0AA11-0AA06SN1123-1AA00-0EA16AU1445-0AA00-0AA16SN1123-1AA00-0DA16SN1123-1AB00-0CA1

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