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Siemens

Shop our collection of surplus Siemens PLCs. These industrial control systems have been used in a variety of industrial settings and have been fully tested for functionality and reliability. With models available, including the popular S7-300 and S7-1200 series, we have the perfect solution for your automation needs. Don't miss out on this opportunity to save on cost while still getting the industry-leading technology from Siemens. Browse our stock today and find the PLC that fits your specific needs.

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  • 6ES7322-1HF10-0AA0 Siemens
    $280.50 - $343.75
    $280.50 - $343.75
    $280.50 - $343.75
    $280.50

    6ES7322-1HF10-0AA0 Siemens

    SIMATIC S7-300, Digital output SM 322, isolated, 8 DO (relay), 1x 40-pole, 24 V DC, 5 A or 230 V AC, 5 A, connectors with spring-loaded terminal ca...

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  • 6ES7331-7KB02-0AB0 Siemens
    $292.19 - $1,240.10
    $292.19 - $1,240.10
    $292.19 - $1,240.10
    $292.19

    6ES7331-7KB02-0AB0 Siemens

    SIMATIC S7-300, Analog input SM 331, isolated, 2 AI, Resolution 9/12/14 bits, U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole, Removing/i...

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  • 6ES7360-3AA01-0AA0 Siemens
    $357.50 - $1,187.50
    $357.50 - $1,187.50
    $357.50 - $1,187.50
    $357.50

    6ES7360-3AA01-0AA0 Siemens

    SIMATIC S7-300,INTERFACE MODULE IM 360 IN CENTRAL RACK, FOR CONNECTING MAX. 3 EXPANSION RACKS, WITH K-BUS

  • 6ES7322-1BF01-0AA0 Siemens
    $343.75 - $960.10
    $343.75 - $960.10
    $343.75 - $960.10
    $343.75

    6ES7322-1BF01-0AA0 Siemens

    SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 8 DO, 24V DC, 2A, 1 X 20 PIN

  • 6ES7321-1BH02-0AA0 Siemens
    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00

    6ES7321-1BH02-0AA0 Siemens

    Simatic S7-300, Digital Input SM321, Optically ISOLATED, 16DI, 24 V DC, 1 X 20 PIN

  • 6ES7321-1BH50-0AA0 Siemens
    $288.75 - $767.50
    $288.75 - $767.50
    $288.75 - $767.50
    $288.75

    6ES7321-1BH50-0AA0 Siemens

    Simatic S7-300, Digital Input SM321, Optically Isolated 16DI, 24 V DC, SOURCE INPUT, 1 X 20 PIN

  • 6ES7365-0BA01-0AA0 Siemens
    $347.46 - $505.00
    $347.46 - $505.00
    $347.46 - $505.00
    $347.46

    6ES7365-0BA01-0AA0 Siemens

    SIMATIC S7-300, Connection IM 365 for connection of an extension rack without C bus, 2 modules+ connecting cable 1 m

  • 6DD1607-0AA0 Siemens
    $1,124.98 - $3,850.00
    $1,124.98 - $3,850.00
    $1,124.98 - $3,850.00
    $1,124.98

    6DD1607-0AA0 Siemens

    SIMATIC S7-400, FM 458 APPLICATION MODULE FOR SIMATIC S7-400

  • 6ES7453-3AH00-0AE0 Siemens
    $2,420.00 - $2,673.00
    $2,673.00
    $2,420.00 - $2,673.00
    $2,673.00

    6ES7453-3AH00-0AE0 Siemens

    SIMATIC S7-400, function module FM 453, (3-channel) for positioning with servo and stepper motors, incl. configuration package on CD

  • 6ES7431-7QH00-0AB0 Siemens
    $547.50 - $6,898.50
    $547.50 - $6,898.50
    $547.50 - $6,898.50
    $547.50

    6ES7431-7QH00-0AB0 Siemens

    SIMATIC S7-400, analog input SM 431, isolated 16 AI; resolution 16 bit, U/I/Resistor/Thermocouple/Pt100 , alarm, diagnostics

  • 6ES7441-2AA04-0AE0 Siemens
    $522.50 - $1,874.98
    $522.50 - $1,874.98
    $522.50 - $1,874.98
    $522.50

    6ES7441-2AA04-0AE0 Siemens

    SIMATIC S7-400, COUPLING MODULE CP 441-2 FOR POINT-TO-POINT- CONNECTIONS, 2 CHANNELS INCL. CONFIGURATION PACKAGE ON CD

  • 6ES7432-1HF00-0AB0 Siemens
    $467.47 - $4,943.60
    $467.47 - $4,943.60
    $467.47 - $4,943.60
    $467.47

    6ES7432-1HF00-0AB0 Siemens

    Simatic S7-400, SM432 ANALOG OUTPUT Module OPTIC. ISOLATED, 8 AO, 13 BIT RESOLUTION, U/I

  • 6ES7441-2AA03-0AE0 Siemens
    $467.47 - $2,487.10
    $467.47 - $2,487.10
    $467.47 - $2,487.10
    $467.47

    6ES7441-2AA03-0AE0 Siemens

    SIMATIC S7-400, CP 441-2 COMMUNICATIONS MODULE FOR POINT TO POINT CONNECTIONS 2 CHANNELS INCL. CONFIG. PACKAGE ON CD

  • 6ES7463-2AA00-0AA0 Siemens
    $1,063.63 - $1,324.98
    $1,063.63 - $1,324.98
    $1,063.63 - $1,324.98
    $1,063.63

    6ES7463-2AA00-0AA0 Siemens

    Simatic S7-400, IM463-2 TRANSMITTER Interface Module FOR DISTRIBUTED CONNECTION TO Simatic S5 EXPANSION Modules VIA IM314, UP TO 600 M

  • 6ES7431-1KF00-0AB0 Siemens
    $1,499.98 - $1,749.98
    $1,749.98
    $1,499.98 - $1,749.98
    $1,749.98

    6ES7431-1KF00-0AB0 Siemens

    Simatic S7-400, SM431 ANALOG Input Module OPTIC. ISOLATED, 8 AI, 13 BIT RESOLUTION, U/I/RESIST.

  • 6ES7450-1AP00-0AE0 Siemens
    $990.00 - $2,107.00
    $990.00 - $2,107.00
    $990.00 - $2,107.00
    $990.00

    6ES7450-1AP00-0AE0 Siemens

    SIMATIC S7-400, function module FM 450-1 for counter function with 2 channels incl. configuration package on CD

  • 6ES7422-1HH00-0AA0 Siemens
    $519.75 - $2,472.98
    $519.75 - $2,472.98
    $519.75 - $2,472.98
    $519.75

    6ES7422-1HH00-0AA0 Siemens

    Simatic S7-400, SM422 Digital Output MODULE, OPTIC. ISOLATED, 16 DO, 5..230V AC, 5A RELAY

  • 6ES7421-7BH01-0AB0 Siemens
    $522.50 - $2,219.60
    $522.50 - $2,219.60
    $522.50 - $2,219.60
    $522.50

    6ES7421-7BH01-0AB0 Siemens

    SIMATIC S7-400, DIGITAL INPUT SM 421, GALVANICALLY ISOLATED, 16 DI, 24V DC WITH 0.05 MS INPUT DELAY, ALARM, DIAGNOSTICS

  • 6ES7461-0AA01-0AA0 Siemens
    $622.50 - $897.50
    $897.50
    $622.50 - $897.50
    $897.50

    6ES7461-0AA01-0AA0 Siemens

    SIMATIC S7-400 IM 461-0 Receive Interface Module for Central Rack Expansion up to 5m, transmission of P and C bus, plugs into Expansion Rack, can b...

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  • 6ES7964-2AA04-0AB0 Siemens
    $800.00 - $1,972.81
    $800.00 - $1,972.81
    $800.00 - $1,972.81
    $800.00

    6ES7964-2AA04-0AB0 Siemens

    SIMATIC S7, IF964-DP INTERFACE MODULE DP MASTER FOR S7-400

  • 6ES7460-1BA01-0AB0 Siemens
    $509.44 - $907.50
    $907.50
    $509.44 - $907.50
    $907.50

    6ES7460-1BA01-0AB0 Siemens

    Simatic S7-400, IM460-1 TRANSMITTER Interface MODULE, FOR CENTRALIZED CONNECTION with PS TRANSMISSION W/O K BUS

  • 6ES7422-1BH11-0AA0 Siemens
    $300.00 - $1,896.30
    $300.00 - $1,896.30
    $300.00 - $1,896.30
    $300.00

    6ES7422-1BH11-0AA0 Siemens

    Simatic S7-400, SM422 Digital Output MODULE, OPTIC. ISOLATED, 16 DO, 24V DC, 2A

  • 6ES7421-1BL01-0AA0 Siemens
    $300.00 - $352.00
    $300.00 - $352.00
    $300.00 - $352.00
    $300.00

    6ES7421-1BL01-0AA0 Siemens

    SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, OPTIC. ISOLATED, 32 DI, 24V DC

  • 6ES7232-4HD30-0XB0 Siemens
    $0.00 - $675.00
    $0.00 - $675.00
    $0.00 - $675.00
    $675.00

    6ES7232-4HD30-0XB0 Siemens

    SIMATIC S7-1200, Analog output, SM 1232, 4 AO, +/-10 V, 14-bit resolution, or 0-20 mA, 13-bit resolution

  • 6ES7231-5PF32-0XB0 Siemens
    $689.68 - $1,847.30
    $689.68 - $1,847.30
    $689.68 - $1,847.30
    $689.68

    6ES7231-5PF32-0XB0 Siemens

    SIMATIC S7-1200, Analog input, SM 1231 RTD, 8xAI RTD module

  • 6ES7223-1PL30-0XB0 Siemens
    $611.35 - $812.50
    $611.35 - $812.50
    $611.35 - $812.50
    $611.35

    6ES7223-1PL30-0XB0 Siemens

    SIMATIC S7-1200, Digital I/O SM 1223, 16 DI/16 DO, 16 DI 24 V DC, Sink/Source, 16 DO, relay 2 A

  • 6ES7232-4HD32-0XB0 Siemens
    $537.63 - $772.50
    $772.50
    $537.63 - $772.50
    $772.50

    6ES7232-4HD32-0XB0 Siemens

    Simatic S7-1200, ANALOG OUTPUT, SM1232, 4 AO, +/-10V, 14 BIT RESOLUTION, OR 0 - 20mA/4 - 20mA, 13 BIT RESOLUTION

  • 6ES7234-4HE30-0XB0 Siemens
    $550.00 - $968.20
    $968.20
    $550.00 - $968.20
    $968.20

    6ES7234-4HE30-0XB0 Siemens

    SIMATIC S7-1200, analog I/O SM 1234, 4 AI/2 AO, +/-10 V, 14-bit resolution, or 0-20 mA, 13-bit resolution

  • 6ES7231-4HF32-0XB0 Siemens
    $518.29 - $1,360.10
    $518.29 - $1,360.10
    $518.29 - $1,360.10
    $518.29

    6ES7231-4HF32-0XB0 Siemens

    SIMATIC S7-1200, Analog input, SM 1231, 8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign or (13 bit ADC)

  • 6ES7231-5ND32-0XB0 Siemens
    $0.00 - $997.50
    $997.50
    $0.00 - $997.50
    $997.50

    6ES7231-5ND32-0XB0 Siemens

    SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, +/-1.25 or 0-20 mA/4-20 mA, 15 bit+sign bit

  • 6ES7234-4HE32-0XB0 Siemens
    $513.98 - $750.00
    $513.98 - $750.00
    $513.98 - $750.00
    $513.98

    6ES7234-4HE32-0XB0 Siemens

    SIMATIC S7-1200, analog I/O module SM 1234, 4 AI/2 AO, +/-10 V, 14-bit resolution or 0 (4)-20mA, 13-bit resolution

  • 6ES7231-5QD32-0XB0 Siemens
    $505.73 - $1,285.00
    $505.73 - $1,285.00
    $505.73 - $1,285.00
    $505.73

    6ES7231-5QD32-0XB0 Siemens

    SIMATIC S7-1200, Analog input, SM 1231 TC, 4 AI thermocouples

  • 6ES7231-5PD32-0XB0 Siemens
    $795.00 - $1,875.00
    $795.00 - $1,875.00
    $795.00 - $1,875.00
    $795.00

    6ES7231-5PD32-0XB0 Siemens

    SIMATIC S7-1200, ANALOG INPUT, SM 1231 RTD, 4 X AI RTD MODULE

  • 6ES7223-1BL30-0XB0 Siemens
    $0.00 - $1,337.50
    $1,337.50
    $0.00 - $1,337.50
    $1,337.50

    6ES7223-1BL30-0XB0 Siemens

    SIMATIC S7-1200, Digital I/O SM 1223, 16 DI/16 DO, 16 DI 24 V DC, Sink/Source, 16 DO, transistor 0.5 A

  • 6ES7223-1PL32-0XB0 Siemens
    $327.25 - $760.08
    $327.25 - $760.08
    $327.25 - $760.08
    $327.25

    6ES7223-1PL32-0XB0 Siemens

    SIMATIC S7-1200, DIGITAL I/O SM 1223, 16DI / 16DO, 16DI DC 24 V, SINK/SOURCE, 16DO, RELAY 2A

  • 6ES7232-4HB32-0XB0 Siemens
    $1,072.50 - $2,450.15
    $1,072.50 - $2,450.15
    $1,072.50 - $2,450.15
    $1,072.50

    6ES7232-4HB32-0XB0 Siemens

    SIMATIC S7-1200, Analog output, SM 1232, 2 AO, +/-10 V, 14-bit resolution, or 0-20 mA/4-20 mA, 13-bit resolution