PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7321-7BH00-0AB0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
192
Recorded quantity sold
17
Median recorded price
$273.30161 US-dollar records
Recorded price range
$1.00to $1560.00 USD
First listing start: 17 Mar 2017Last listing start: 15 Oct 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.01101001000Mar 2017Jul 2019Dec 2021May 2024Oct 20262017-03-17: US$37.72; no sale recorded2017-03-19: US$329.00; no sale recorded2017-05-11: US$438.35; no sale recorded2017-08-07: US$329.64; no sale recorded2017-09-01: US$44.99; no sale recorded2017-09-20: US$326.00; no sale recorded2018-01-23: US$129.99; no sale recorded2018-04-16: US$329.42; no sale recorded2018-04-16: US$329.52; no sale recorded2018-04-16: US$329.58; no sale recorded2018-11-09: US$225.00; sold recorded2019-01-03: US$320.45; no sale recorded2019-10-12: US$40.00; no sale recorded2019-11-04: US$329.61; no sale recorded2019-11-11: US$115.00; no sale recorded2019-12-10: US$117.00; no sale recorded2020-01-02: US$89.99; no sale recorded2020-02-27: US$319.81; no sale recorded2020-06-02: US$58.77; no sale recorded2020-07-06: US$18.76; no sale recorded2020-08-06: US$115.00; no sale recorded2020-08-10: US$59.47; no sale recorded2020-08-27: US$352.00; no sale recorded2020-10-20: US$30.00; no sale recorded2020-11-05: US$318.50; no sale recorded2020-12-28: US$112.17; no sale recorded2021-03-04: US$348.00; no sale recorded2021-03-23: US$62.50; no sale recorded2021-04-02: US$273.31; no sale recorded2021-04-13: US$27.48; no sale recorded2021-05-05: US$159.99; no sale recorded2022-02-14: US$49.95; no sale recorded2022-02-24: US$75.00; no sale recorded2022-03-10: US$211.00; no sale recorded2022-04-19: US$785.83; no sale recorded2022-04-28: US$652.68; no sale recorded2022-05-20: US$549.12; no sale recorded2022-06-25: US$406.60; no sale recorded2022-07-04: US$558.72; no sale recorded2022-07-15: US$273.28; no sale recorded2022-07-15: US$273.29; no sale recorded2022-07-15: US$273.30; no sale recorded2022-07-15: US$273.37; no sale recorded2022-07-15: US$273.38; no sale recorded2022-07-16: US$273.54; no sale recorded2022-07-16: US$273.44; no sale recorded2022-07-16: US$273.43; no sale recorded2022-07-16: US$273.42; no sale recorded2022-07-18: US$273.53; no sale recorded2022-07-19: US$273.40; no sale recorded2022-09-01: US$319.99; no sale recorded2022-09-09: US$785.83; no sale recorded2022-09-14: US$126.77; sold recorded2022-10-26: US$80.03; no sale recorded2022-11-02: US$80.03; no sale recorded2022-11-19: US$273.18; no sale recorded2022-12-01: US$273.31; no sale recorded2023-01-20: US$319.99; no sale recorded2023-01-21: US$319.99; no sale recorded2023-02-08: US$273.39; no sale recorded2023-02-08: US$273.38; no sale recorded2023-02-08: US$273.31; no sale recorded2023-02-09: US$273.30; no sale recorded2023-02-16: US$385.23; no sale recorded2023-03-31: US$75.00; no sale recorded2023-04-11: US$1560.00; no sale recorded2023-04-19: US$392.75; no sale recorded2023-04-19: US$375.60; no sale recorded2023-07-06: US$255.00; no sale recorded2023-07-19: US$381.90; no sale recorded2023-07-20: US$377.57; no sale recorded2023-08-24: US$154.31; no sale recorded2023-09-03: US$785.83; no sale recorded2023-09-04: US$326.34; no sale recorded2023-09-18: US$252.34; no sale recorded2023-10-24: US$153.18; sold recorded2023-12-22: US$235.90; no sale recorded2024-01-06: US$99.00; no sale recorded2024-01-08: US$1.00; no sale recorded2024-02-03: US$56.99; sold recorded2024-02-13: US$195.00; no sale recorded2024-02-17: US$110.00; no sale recorded2024-02-23: US$190.00; no sale recorded2024-02-28: US$171.45; sold recorded2024-03-17: US$190.00; no sale recorded2024-03-19: US$345.33; no sale recorded2024-03-24: US$180.00; no sale recorded2024-03-25: US$188.26; sold recorded2024-04-08: US$180.00; no sale recorded2024-04-11: US$180.00; no sale recorded2024-04-19: US$180.00; no sale recorded2024-04-30: US$273.30; sold recorded2024-05-02: US$180.00; no sale recorded2024-05-02: US$11.67; no sale recorded2024-05-03: US$273.26; no sale recorded2024-05-07: US$273.54; no sale recorded2024-05-09: US$273.53; no sale recorded2024-05-15: US$273.43; no sale recorded2024-05-16: US$170.00; no sale recorded2024-05-25: US$300.63; no sale recorded2024-06-01: US$230.90; no sale recorded2024-06-02: US$170.00; no sale recorded2024-06-03: US$388.51; no sale recorded2024-06-06: US$372.40; no sale recorded2024-06-16: US$170.00; no sale recorded2024-06-20: US$330.63; no sale recorded2024-06-25: US$312.09; no sale recorded2024-07-14: US$170.00; no sale recorded2024-07-29: US$223.32; no sale recorded2024-08-07: US$170.00; no sale recorded2024-08-12: US$309.00; no sale recorded2024-08-21: US$228.59; no sale recorded2024-09-13: US$302.85; no sale recorded2024-09-13: US$20.31; no sale recorded2024-10-11: US$413.42; no sale recorded2024-10-14: US$222.99; sold recorded2024-10-17: US$312.05; no sale recorded2024-10-24: US$327.34; no sale recorded2024-10-24: US$44.99; no sale recorded2024-10-29: US$39.99; no sale recorded2024-11-26: US$37.50; sold recorded2024-12-11: US$422.00; no sale recorded2024-12-17: US$99.00; no sale recorded2025-02-13: US$19.01; sold recorded2025-03-15: US$19.96; sold recorded2025-04-07: US$86.78; sold recorded2025-04-14: US$20.80; sold recorded2025-06-13: US$21.25; no sale recorded2025-07-01: US$38.68; no sale recorded2025-07-13: US$21.41; no sale recorded2025-08-06: US$273.42; no sale recorded2025-08-06: US$273.29; no sale recorded2025-08-11: US$422.00; no sale recorded2025-08-12: US$21.27; no sale recorded2025-09-11: US$21.42; no sale recorded2025-09-11: US$389.96; no sale recorded2025-09-19: US$402.00; no sale recorded2025-09-21: US$60.39; no sale recorded2025-10-07: US$326.34; no sale recorded2025-10-11: US$21.21; no sale recorded2025-10-15: US$273.44; no sale recorded2025-11-10: US$21.19; no sale recorded2025-12-11: US$21.32; no sale recorded2025-12-16: US$398.82; no sale recorded2025-12-25: US$428.00; no sale recorded2026-01-04: US$415.00; no sale recorded2026-01-31: US$400.11; no sale recorded2026-02-08: US$21.62; no sale recorded2026-03-01: US$60.73; no sale recorded2026-03-24: US$389.84; no sale recorded2026-03-27: US$30.00; no sale recorded2026-04-03: US$408.96; no sale recorded2026-04-23: US$406.00; no sale recorded2026-05-04: US$60.20; no sale recorded2026-05-23: US$406.00; no sale recorded2026-06-05: US$408.96; no sale recorded2026-06-06: US$392.00; no sale recorded2026-06-16: US$405.50; no sale recorded2026-07-25: US$428.00; no sale recorded2026-08-24: US$389.84; no sale recorded2026-10-15: US$405.50; 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.01101001000Mar 2017Dec 2021Oct 20262017-03-17: US$37.72; no sale recorded2017-03-19: US$329.00; no sale recorded2017-05-11: US$438.35; no sale recorded2017-08-07: US$329.64; no sale recorded2017-09-01: US$44.99; no sale recorded2017-09-20: US$326.00; no sale recorded2018-01-23: US$129.99; no sale recorded2018-04-16: US$329.42; no sale recorded2018-04-16: US$329.52; no sale recorded2018-04-16: US$329.58; no sale recorded2018-11-09: US$225.00; sold recorded2019-01-03: US$320.45; no sale recorded2019-10-12: US$40.00; no sale recorded2019-11-04: US$329.61; no sale recorded2019-11-11: US$115.00; no sale recorded2019-12-10: US$117.00; no sale recorded2020-01-02: US$89.99; no sale recorded2020-02-27: US$319.81; no sale recorded2020-06-02: US$58.77; no sale recorded2020-07-06: US$18.76; no sale recorded2020-08-06: US$115.00; no sale recorded2020-08-10: US$59.47; no sale recorded2020-08-27: US$352.00; no sale recorded2020-10-20: US$30.00; no sale recorded2020-11-05: US$318.50; no sale recorded2020-12-28: US$112.17; no sale recorded2021-03-04: US$348.00; no sale recorded2021-03-23: US$62.50; no sale recorded2021-04-02: US$273.31; no sale recorded2021-04-13: US$27.48; no sale recorded2021-05-05: US$159.99; no sale recorded2022-02-14: US$49.95; no sale recorded2022-02-24: US$75.00; no sale recorded2022-03-10: US$211.00; no sale recorded2022-04-19: US$785.83; no sale recorded2022-04-28: US$652.68; no sale recorded2022-05-20: US$549.12; no sale recorded2022-06-25: US$406.60; no sale recorded2022-07-04: US$558.72; no sale recorded2022-07-15: US$273.28; no sale recorded2022-07-15: US$273.29; no sale recorded2022-07-15: US$273.30; no sale recorded2022-07-15: US$273.37; no sale recorded2022-07-15: US$273.38; no sale recorded2022-07-16: US$273.54; no sale recorded2022-07-16: US$273.44; no sale recorded2022-07-16: US$273.43; no sale recorded2022-07-16: US$273.42; no sale recorded2022-07-18: US$273.53; no sale recorded2022-07-19: US$273.40; no sale recorded2022-09-01: US$319.99; no sale recorded2022-09-09: US$785.83; no sale recorded2022-09-14: US$126.77; sold recorded2022-10-26: US$80.03; no sale recorded2022-11-02: US$80.03; no sale recorded2022-11-19: US$273.18; no sale recorded2022-12-01: US$273.31; no sale recorded2023-01-20: US$319.99; no sale recorded2023-01-21: US$319.99; no sale recorded2023-02-08: US$273.39; no sale recorded2023-02-08: US$273.38; no sale recorded2023-02-08: US$273.31; no sale recorded2023-02-09: US$273.30; no sale recorded2023-02-16: US$385.23; no sale recorded2023-03-31: US$75.00; no sale recorded2023-04-11: US$1560.00; no sale recorded2023-04-19: US$392.75; no sale recorded2023-04-19: US$375.60; no sale recorded2023-07-06: US$255.00; no sale recorded2023-07-19: US$381.90; no sale recorded2023-07-20: US$377.57; no sale recorded2023-08-24: US$154.31; no sale recorded2023-09-03: US$785.83; no sale recorded2023-09-04: US$326.34; no sale recorded2023-09-18: US$252.34; no sale recorded2023-10-24: US$153.18; sold recorded2023-12-22: US$235.90; no sale recorded2024-01-06: US$99.00; no sale recorded2024-01-08: US$1.00; no sale recorded2024-02-03: US$56.99; sold recorded2024-02-13: US$195.00; no sale recorded2024-02-17: US$110.00; no sale recorded2024-02-23: US$190.00; no sale recorded2024-02-28: US$171.45; sold recorded2024-03-17: US$190.00; no sale recorded2024-03-19: US$345.33; no sale recorded2024-03-24: US$180.00; no sale recorded2024-03-25: US$188.26; sold recorded2024-04-08: US$180.00; no sale recorded2024-04-11: US$180.00; no sale recorded2024-04-19: US$180.00; no sale recorded2024-04-30: US$273.30; sold recorded2024-05-02: US$180.00; no sale recorded2024-05-02: US$11.67; no sale recorded2024-05-03: US$273.26; no sale recorded2024-05-07: US$273.54; no sale recorded2024-05-09: US$273.53; no sale recorded2024-05-15: US$273.43; no sale recorded2024-05-16: US$170.00; no sale recorded2024-05-25: US$300.63; no sale recorded2024-06-01: US$230.90; no sale recorded2024-06-02: US$170.00; no sale recorded2024-06-03: US$388.51; no sale recorded2024-06-06: US$372.40; no sale recorded2024-06-16: US$170.00; no sale recorded2024-06-20: US$330.63; no sale recorded2024-06-25: US$312.09; no sale recorded2024-07-14: US$170.00; no sale recorded2024-07-29: US$223.32; no sale recorded2024-08-07: US$170.00; no sale recorded2024-08-12: US$309.00; no sale recorded2024-08-21: US$228.59; no sale recorded2024-09-13: US$302.85; no sale recorded2024-09-13: US$20.31; no sale recorded2024-10-11: US$413.42; no sale recorded2024-10-14: US$222.99; sold recorded2024-10-17: US$312.05; no sale recorded2024-10-24: US$327.34; no sale recorded2024-10-24: US$44.99; no sale recorded2024-10-29: US$39.99; no sale recorded2024-11-26: US$37.50; sold recorded2024-12-11: US$422.00; no sale recorded2024-12-17: US$99.00; no sale recorded2025-02-13: US$19.01; sold recorded2025-03-15: US$19.96; sold recorded2025-04-07: US$86.78; sold recorded2025-04-14: US$20.80; sold recorded2025-06-13: US$21.25; no sale recorded2025-07-01: US$38.68; no sale recorded2025-07-13: US$21.41; no sale recorded2025-08-06: US$273.42; no sale recorded2025-08-06: US$273.29; no sale recorded2025-08-11: US$422.00; no sale recorded2025-08-12: US$21.27; no sale recorded2025-09-11: US$21.42; no sale recorded2025-09-11: US$389.96; no sale recorded2025-09-19: US$402.00; no sale recorded2025-09-21: US$60.39; no sale recorded2025-10-07: US$326.34; no sale recorded2025-10-11: US$21.21; no sale recorded2025-10-15: US$273.44; no sale recorded2025-11-10: US$21.19; no sale recorded2025-12-11: US$21.32; no sale recorded2025-12-16: US$398.82; no sale recorded2025-12-25: US$428.00; no sale recorded2026-01-04: US$415.00; no sale recorded2026-01-31: US$400.11; no sale recorded2026-02-08: US$21.62; no sale recorded2026-03-01: US$60.73; no sale recorded2026-03-24: US$389.84; no sale recorded2026-03-27: US$30.00; no sale recorded2026-04-03: US$408.96; no sale recorded2026-04-23: US$406.00; no sale recorded2026-05-04: US$60.20; no sale recorded2026-05-23: US$406.00; no sale recorded2026-06-05: US$408.96; no sale recorded2026-06-06: US$392.00; no sale recorded2026-06-16: US$405.50; no sale recorded2026-07-25: US$428.00; no sale recorded2026-08-24: US$389.84; no sale recorded2026-10-15: US$405.50; no sale recorded
Sold recordedNo sale recordedMonthly median

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

Median recorded price, all years$273.30

161 plotted records from 161 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

192 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
15 Oct 20261PC New Siemens 6ES7 321-7BH00-0AB0 SM321 Digital Input Module Fast DeliveryeBay 336845386750New$405.500Recorded activeHK
24 Aug 20261PC New Siemens 6ES7 321-7BH00-0AB0 SM321 Digital Input Module FREE SHIPeBay 206512609948New$389.840Recorded activeHK
25 Jul 2026NEW Siemens 6ES7 321-7BH00-0AB0 SM321 digital input module Fast ShippingeBay 318633954889New$428.000Recorded activeCN
16 Jun 20261PC New Siemens 6ES7 321-7BH00-0AB0 SM321 Digital Input Module Fast DeliveryeBay 336642377792New$405.500Recorded activeHK
06 Jun 2026SIEMENS New 6ES7 321-7BH00-0AB0 SM321 Digital Input Module FAST SHIPeBay 406979144614New$392.000Recorded activeCN
05 Jun 20261PC NEW SIEMENS 6ES7 321-7BH00-0AB0 SM321 Digital Input Module SPOT STOCKeBay 168432878644New$408.960Recorded activeCN
23 May 2026One Brand New SIEMENS 6ES7 321-7BH00-0AB0 Digital Input Module Free shipping#LJeBay 336597905993New$406.000Recorded activeCN
04 May 2026SIEMENS 6ES7 321-7BH00-0AB0 Digital Input ModuleeBay 127846472493Used$60.200Recorded activeFR
23 Apr 2026One Brand New SIEMENS 6ES7 321-7BH00-0AB0 Digital Input Module Free shipping#LJeBay 336548595159New$406.000Recorded activeCN
03 Apr 20261PC NEW SIEMENS 6ES7 321-7BH00-0AB0 SM321 Digital Input Module SPOT STOCKeBay 168284480658New$408.960Recorded activeCN
02 Apr 2026Siemens Simatic S7 6ES7 321-7BH00-0AB0 E-Stand: 03 + Connector -used-eBay 168282273199Gebraucht22.02 [DE]0Recorded activeDE
27 Mar 2026Siemens 321-7BH00-0AB0 SIMATIC S7 Digital Input ModuleeBay 127775247053Used$30.000Recorded activeUS
24 Mar 20261PC New Siemens 6ES7 321-7BH00-0AB0 SM321 Digital Input Module FREE SHIPeBay 206163796864New$389.840Recorded activeHK
01 Mar 2026SIEMENS 6ES7 321-7BH00-0AB0 Digital Input ModuleeBay 377000603930Used$60.730Recorded activeFR
25 Feb 2026Siemens Simatic S7 6ES7 321-7BH00-0AB0 E-Stand: 04 + Connector -used-eBay 168186616938Gebraucht22.37 [DE]0Recorded activeDE
08 Feb 2026Siemens Simatic S7-300 DI SM321, 6ES7 321-7BH00-0AB0, 16xDCeBay 287130738754Used$21.620Recorded activeDE
31 Jan 20261PC New Siemens 6ES7 321-7BH00-0AB0 SM321 Digital Input Module FAST SHIP#XReBay 406654874268New$400.110Recorded activeCN
24 Jan 2026Siemens Simatic S7 6ES7 321-7BH00-0AB0 E-Stand: 03 + Connector -used-eBay 168107491948Gebraucht22.47 [DE]0Recorded activeDE
04 Jan 20261PC SIEMENS NEW 6ES7 321-7BH00-0AB0 SM321 Digital Input Module FAST SHIPeBay 376833312538New$415.000Recorded activeCN
25 Dec 2025NEW Siemens 6ES7 321-7BH00-0AB0 SM321 digital input module Fast ShippingeBay 317696633371New$428.000Recorded activeCN
22 Dec 2025Siemens Simatic S7 6ES7 321-7BH00-0AB0 E-Stand: 04 + Connector -used-eBay 406508944083Gebraucht22.25 [DE]0Recorded activeDE
16 Dec 20256ES7 321-7BH00-0AB0 SIEMENS New SM321 Digital Input Module Free ShippingeBay 317665097081New$398.820Recorded activeCN
11 Dec 2025Siemens Simatic S7-300 DI SM321, 6ES7 321-7BH00-0AB0, 16xDCeBay 277570246158Used$21.320Recorded activeDE
10 Nov 2025Siemens Simatic S7-300 DI SM321, 6ES7 321-7BH00-0AB0, 16xDCeBay 277496225236Used$21.190Recorded activeDE
15 Oct 20251PCS Used Siemens 6ES7 321-7BH00-0AB0 PLC ModuleeBay 187653515187Used$273.440Recorded 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

321-5BA006ES7321-5BD01-0AB0321-6SB00-0AY0321-7BH00-0AB06ES7321-7BH00-0AB06ES7321-7BH01-0AA06ES7321-7BH01-0AB0

Related part numbers

6ES7331-7KF02-0AB0331-1KF02-0AB06ES7322-1BL00-0AA06ES7334-0KE00-0AB06EP3310-6SB00-0AY06ES7141-5BF00-0BA03VL1725-1EH43-0AA06ES7131-6BF00-0CA06ES7318-3EL01-0AB07KM3133-0BA00-3AA06ES7414-2XG01-0AB06ES7315-2AH14-0AB06SL3040-0LA00-0AA06ES7194-4GB60-0AA06ES7216-2AD23-0XB0

Search current eBay listings