Skip to content
Free Ground Shipping | Overnight Shipping Available | Texas-based company, and all shipments come from the USA
(833) 800-7748

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.

Filters

  • 6AV6642-0BA01-1AX0 Siemens
    $1,793.53 - $3,404.16
    $1,793.53 - $3,404.16
    $1,793.53 - $3,404.16
    $1,793.53

    6AV6642-0BA01-1AX0 Siemens

    SIMATIC TOUCHPANEL TP177B PN/DP STN 265 COLOR-DISPLAY MPI-/PROFIBUS-DP - PROTOCOL RS485-/RS422-/USB - INTERFACE ETHERNET10/100 INTERFACE PRINTER - ...

    View full details
  • 6AV6641-0CA01-0AX1 Siemens
    $1,940.38 - $2,180.50
    $1,940.38 - $2,180.50
    $1,940.38 - $2,180.50
    $1,940.38

    6AV6641-0CA01-0AX1 Siemens

    SIMATIC Operator Panel OP 77B LC display backlit, 4.5" display graphics-capable, MPI/PROFIBUS DP interface up to 12 MB, printer/USB interface, slot...

    View full details
  • 6GK1611-0TA01-0DX0 Siemens
    $0.00 - $2,691.98
    $2,691.98
    $0.00 - $2,691.98
    $2,691.98

    6GK1611-0TA01-0DX0 Siemens

    SIMATIC HMI M. T8 D,E,F,S,I V1.2 Internet pad with charging contacts, bright display operable via Touch with Connection to Ethernet (integr.), WIN ...

    View full details
  • 6AV2124-1GC01-0AX0 Siemens
    $1,919.48 - $2,076.11
    $2,076.11
    $1,919.48 - $2,076.11
    $2,076.11

    6AV2124-1GC01-0AX0 Siemens

    SIMATIC HMI KP700 COMFORT, COMFORT PANEL, KEY OPERATION, 7" WIDESCREEN-TFT-DISPLAY, 16 MIL. COLORS, PROFINET INTERFACE, MPI/PROFIBUS DP INTERFACE, ...

    View full details
  • 6AV6647-0AD11-3AX0 Siemens
    $687.50 - $1,624.88
    $687.50 - $1,624.88
    $687.50 - $1,624.88
    $687.50

    6AV6647-0AD11-3AX0 Siemens

    SIMATIC HMI KTP600 BASIC COLOR PN, BASIC PANEL, KEY AND TOUCH OPERATION, 6" TFT DISPLAY, 256 COLORS, PROFINET INTERFACE, CONFIGURATION FROM WINCC F...

    View full details
  • 6AV6545-0AA15-2AX0 Siemens-Siemens-Never Used Surplus-PLC Department
    $409.75 - $1,204.98
    $409.75 - $1,204.98
    $409.75 - $1,204.98
    $409.75

    6AV6545-0AA15-2AX0 Siemens

    SIMATIC Touch Panel TP070 5.7" STN display Resistive analog touch

  • 6AV2123-2JB03-0AX0 Siemens
    $750.00 - $1,363.28
    $750.00 - $1,363.28
    $750.00 - $1,363.28
    $750.00

    6AV2123-2JB03-0AX0 Siemens

    SIMATIC HMI, KTP900 Basic, Basic Panel, Key/touch operation, 9" TFT display, 65536 colors, PROFINET interface, configurable from WinCC Basic V13/ S...

    View full details
  • 6AV6640-0CA01-0AX0 Siemens
    $1,347.50 - $1,940.40
    $1,347.50 - $1,940.40
    $1,347.50 - $1,940.40
    $1,347.50

    6AV6640-0CA01-0AX0 Siemens

    SIMATIC Touch Panel TP 170MICRO for SIMATIC S7-200 5.7" blue mode STN display configurable with WinCC flexible 2004 Micro

  • 6AV6647-0AC11-3AX0 Siemens
    $1,851.54 - $8,533.47
    $1,851.54 - $8,533.47
    $1,851.54 - $8,533.47
    $1,851.54

    6AV6647-0AC11-3AX0 Siemens

    SIMATIC HMI KTP600 Basic Color DP, Basic Panel, Key/touch operation, 6" TFT display, 256 colors, MPI/PROFIBUS DP interface, configurable as of WinC...

    View full details
  • 6AV6641-0AA11-0AX0 Siemens
    $2,912.84 - $3,290.40
    $2,912.84 - $3,290.40
    $2,912.84 - $3,290.40
    $3,290.40

    6AV6641-0AA11-0AX0 Siemens

    SIMATIC Operator Panel OP 73 3" LC display, graphics-capable, backlit, MPI-/PROFIBUS DP interface, to 1.5 MB, configurable from WinCC flexible 2004...

    View full details
  • 6AV2124-2DC01-0AX0 Siemens
    $518.00 - $1,287.50
    $518.00 - $1,287.50
    $518.00 - $1,287.50
    $518.00

    6AV2124-2DC01-0AX0 Siemens

    SIMATIC HMI KTP400 Comfort, Comfort Panel, Key/touch operation, 4" widescreen TFT display, 16 million colors, PROFINET interface, MPI/PROFIBUS DP i...

    View full details
  • 6AV6671-5AE11-0AX0 Siemens
    $385.00 - $4,872.00
    $385.00 - $4,872.00
    $385.00 - $4,872.00
    $385.00

    6AV6671-5AE11-0AX0 Siemens

    Connection box PN plus for Mobile Panels (PROFINET)

  • 6ES7272-0AA30-0YA0 Siemens
    $0.00 - $448.25
    $448.25
    $0.00 - $448.25
    $448.25

    6ES7272-0AA30-0YA0 Siemens

    SIMATIC S7, TD 200 text display for S7-200, 2-line, with cable (2.5m) and installation accessories, Configuration: with STEP 7-Micro/WIN

  • 6AV2125-2AE23-0AX0 Siemens
    $562.48 - $4,635.73
    $562.48 - $4,635.73
    $562.48 - $4,635.73
    $562.48

    6AV2125-2AE23-0AX0 Siemens

    Simatic HMI CONNECTION BOX ADVANCED FOR Mobile PanelS, MOUNTED ON WALL, PROFINET and PROFISAFE, CONNECTIVITY TO SAFETY RELAIS, LOOP IN OF SAFETY CI...

    View full details
  • 6AV2123-2DB03-0AX0 Siemens
    $547.25 - $1,021.30
    $547.25 - $1,021.30
    $547.25 - $1,021.30
    $547.25

    6AV2123-2DB03-0AX0 Siemens

    SIMATIC HMI, KTP400 Basic, Basic Panel, Key/touch operation, 4" TFT display, 65536 colors, PROFINET interface, configurable from WinCC Basic V13/ S...

    View full details
  • 6AV2125-2AE13-0AX0 Siemens
    $335.34 - $1,102.50
    $335.34 - $1,102.50
    $335.34 - $1,102.50
    $335.34

    6AV2125-2AE13-0AX0 Siemens

    Simatic HMI CONNECTION BOX Standard FOR Mobile PanelS, MOUNTED ON WALL, PROFINET and PROFISAFE, CONNECTIVITY TO SAFETY RELAIS, CONNECTION POINT REC...

    View full details
  • 6AV6647-0AH11-3AX0 Siemens
    $737.50 - $2,757.60
    $737.50 - $2,757.60
    $737.50 - $2,757.60
    $737.50

    6AV6647-0AH11-3AX0 Siemens

    SIMATIC HMI KP300 BASIC MONO PN, BASIC PANEL, KEY OPERATION, 3" FSTN LCD DISPLAY, MONOCHROME BLACK/WHITE, PROFINET INTERFACE, CONFIGURATION FROM WI...

    View full details
  • 6ES5398-0KB12 Siemens
    $0.00 - $5,015.00
    $5,015.00
    $0.00 - $5,015.00
    $5,015.00

    6ES5398-0KB12 Siemens

    OP398 Operator Panel

  • 6AV3515-1EB30 Siemens
    $0.00 - $1,675.00
    $1,675.00
    $0.00 - $1,675.00
    $1,675.00

    6AV3515-1EB30 Siemens

    OP15/A1 OPERATOR PANEL 2 LINE DISPLAY, 40 CPL WITH INTEGRATED INTERFACES 2 X TTY/V.24 AND 1 X RS 422/485

  • 6AV3505-1FB01 Siemens
    $467.50 - $2,763.00
    $467.50 - $2,763.00
    $467.50 - $2,763.00
    $467.50

    6AV3505-1FB01 Siemens

    6AV3 505-1FB01 OP 5 Operator Panel

  • 6ES5393-0UA15 Siemens
    $737.50 - $4,782.10
    $737.50 - $4,782.10
    $737.50 - $4,782.10
    $737.50

    6ES5393-0UA15 Siemens

    OP393-III OPERATOR PANEL

  • 6AV3503-1DB10 Siemens
    $1,622.50 - $2,640.00
    $1,622.50 - $2,640.00
    $1,622.50 - $2,640.00
    $1,622.50

    6AV3503-1DB10 Siemens

    Operator Panel OP3 with cable for connection to SIMATIC S7, SER. cable for configuration and cable for power supply

  • 6AV3520-1DK00 Siemens
    $0.00 - $1,908.55
    $1,908.55
    $0.00 - $1,908.55
    $1,908.55

    6AV3520-1DK00 Siemens

    OPERATOR PANEL OP20/220-5 TWO-LINE,20 CHARACTERS PER LINE

  • 6AV3515-1MA22-1AA0 Siemens
    $0.00 - $1,725.00
    $1,725.00
    $0.00 - $1,725.00
    $1,725.00

    6AV3515-1MA22-1AA0 Siemens

    OP15/C2 OPERATOR PANEL 4 LINE DISPLAY, 20 CPL OR 8 LINE DISPLAY, 40 CPL WITH 2X TTY/V.24 A. 1X MPI/PPI/L2-DP 256 KB USER MEMORY AND 8 SOFTKEYS

  • 6AV3515-1MA00 Siemens
    $0.00 - $522.50
    $522.50
    $0.00 - $522.50
    $522.50

    6AV3515-1MA00 Siemens

    OP 15/B OPERATOR PANEL 4-LINE DISPLAY WITH 20 CPL, 8 MM CHAR. HEIGHT OR 8 LINES W. 40 CPL, 4.5 MM CHAR. HEIGHT

  • 6AV3515-1MA22 Siemens
    $1,725.00 - $6,333.06
    $1,725.00 - $6,333.06
    $1,725.00 - $6,333.06
    $1,725.00

    6AV3515-1MA22 Siemens

    OP15/C2 OPERATOR PANEL 4 LINE DISPLAY, 20 CPL OR 8 LINE DISPLAY, 40 CPL WITH 2 X TTY/V.24 AND 1 X MPI/PPI/ SINEC L2-DP, 8 SOFTKEYS

  • 6ES7972-0BA52-0XB0 Siemens
    Sold out
    $0.00 - $0.00
    $0.00
    $0.00 - $0.00
    $0.00

    6ES7972-0BA52-0XB0 Siemens

    SIMATIC DP,BUS CONNECTOR FOR PROFIBUS UP TO 12 MBIT/S 90 DEGREE ANGLE CABLE OUTLET, 15,8 X 59 X 35,6 MM (WXHXD), IPCD TECHOLOGY FAST CONNECT, WITHO...

    View full details
  • 6ES7516-2GN00-0AB0 Siemens
    $0.00 - $5,629.38
    $5,629.38
    $0.00 - $5,629.38
    $5,629.38

    6ES7516-2GN00-0AB0 Siemens

    SIMATIC DP, CPU 1516PRO F-2 PN for ET 200pro, Central processing unit with work memory 1.5 MB for program and 5 MB for data, 1. interface: PROFINET...

    View full details
  • 6ES7516-2PN00-0AB0 Siemens
    Sold out
    $0.00 - $0.00
    $0.00
    $0.00 - $0.00
    $0.00

    6ES7516-2PN00-0AB0 Siemens

    SIMATIC DP, CPU 1516PRO-2 PN for ET 200pro, Central processing unit with work memory 1 MB for program and 5 MB for data, 1. interface: PROFINET IRT...

    View full details
  • 6ES7154-8FB01-0AB0 Siemens
    $1,725.00 - $2,290.75
    $1,725.00 - $2,290.75
    $1,725.00 - $2,290.75
    $1,725.00

    6ES7154-8FB01-0AB0 Siemens

    SIMATIC DP, IM 154-8F PN/DP PLC FOR ET200PRO, 512KB WORK MEMORY, INT. PROFINET IF, INT.PROFIBUS DP MASTER/SLAVE IF PROT. IP65/67, MMC REQUIRED

  • 6ES7157-0AC82-0XA0 Siemens
    $1,920.87 - $3,696.07
    $1,920.87 - $3,696.07
    $1,920.87 - $3,696.07
    $1,920.87

    6ES7157-0AC82-0XA0 Siemens

    SIMATIC DP, distributed I/O field device interface DP/PA coupler not Ex-Version 1000mA/31V Field coupler between PROFIBUS DP and PROFIBUS PA for ex...

    View full details
  • 6ES7151-8FB01-0AB0 Siemens
    $798.00 - $4,588.30
    $798.00 - $4,588.30
    $798.00 - $4,588.30
    $798.00

    6ES7151-8FB01-0AB0 Siemens

    SIMATIC DP, IM151-8F PN/DP CPU FOR ET200S, 256 KB WORKING MEMORY, INT. PROFINET INTERFACE (WITH THREE RJ45 PORTS) AS IO-CONTROLLER, W/O BATTERY MMC...

    View full details
  • 6ES7972-4AA02-0XA0 Siemens
    $0.00 - $504.08
    $504.08
    $0.00 - $504.08
    $504.08

    6ES7972-4AA02-0XA0 Siemens

    SIMATIC DP, POWER RAIL BOOSTER SIGNAL AMPLIFIER FOR TRANSMITTING THE PROTOCOL OF PROFIBUS-DP USING COLLECTOR WIRES, MAX 500 KBIT/S

  • 6ES7136-6AA00-0CA1 Siemens
    $824.98 - $2,003.39
    $2,003.39
    $824.98 - $2,003.39
    $2,003.39

    6ES7136-6AA00-0CA1 Siemens

    SIMATIC DP, ELECTRONIC MODULE ET 200SP, F-AI 4xI(0)4..20mA HF FAILSAFE ANALOG INPUTS up to PL E (ISO 13849) up to SIL 3 (IEC 61508)

  • 6ES7151-1AA04-0AB0 Siemens
    $302.22 - $702.80
    $302.22 - $702.80
    $302.22 - $702.80
    $302.22

    6ES7151-1AA04-0AB0 Siemens

    SIMATIC DP, INTERFACE MODULE IM151-1 STANDARD FOR ET200S; INCL. TERMINATING MODULE DATA VOLUME 244BYTE FOR EACH INPUT AND OUTPUT; MAX. OF 63 PERIPH...

    View full details
  • 6ES7138-4HA00-0AB0 Siemens
    $343.75 - $1,037.50
    $343.75 - $1,037.50
    $343.75 - $1,037.50
    $343.75

    6ES7138-4HA00-0AB0 Siemens

    SIMATIC DP, DP MASTER INTERFACE FOR IM 151-7 CPU OR IM 151-8 PN/DP (ET200S), MODULE WITH PROFIBUS DP INTERF. (9 PIN SUB-D, FEMALE) AS DP MASTER

  • 6ES7155-5AA00-0AC0 Siemens
    $875.00 - $1,750.00
    $875.00 - $1,750.00
    $875.00 - $1,750.00
    $875.00

    6ES7155-5AA00-0AC0 Siemens

    Simatic ET 200MP. PROFINET IO-DEVICE InterfaceMODULE IM 155-5 PN HF FOR ET 200MP ELEKTRONIKModules; UP TO 12 IO-Modules WITHOUT ADDITIONAL PS; UP T...

    View full details
  • 6ES7138-4FC01-0AB0 Siemens
    $906.25 - $2,116.90
    $906.25 - $2,116.90
    $906.25 - $2,116.90
    $906.25

    6ES7138-4FC01-0AB0 Siemens

    SIMATIC DP, ELECTRON. MODULE F. ET200S, 4 F-DI/3 F-DO DC24V/2A PROFISAFE, 30 MM WIDTH UP TO CATEGORY 3 (EN954-1)/ SIL2 (IEC61508)/PLD (ISO13849), A...

    View full details
  • 6ES7138-4DF11-0AB0 Siemens
    $775.35 - $1,150.00
    $775.35 - $1,150.00
    $775.35 - $1,150.00
    $775.35

    6ES7138-4DF11-0AB0 Siemens

    SIMATIC DP, ELECTRONIC MODULE FOR ET 200S, 1 SI SERIAL INTERFACE ONE CHANNEL, 15MM WIDE RS232/422, 485 MODBUS/USS

  • 6ES7151-1AA03-0AB0 Siemens
    $687.50 - $1,870.00
    $687.50 - $1,870.00
    $687.50 - $1,870.00
    $687.50

    6ES7151-1AA03-0AB0 Siemens

    SIMATIC DP, INTERFACE MODULE IM151-1 STANDARD FOR ET200S; TRANSMISS. RATE UP TO 12MBIT/S; DATA VOLUME 128BYTE FOR EACH INPUT AND OUTPUT; MAX. OF 63...

    View full details
  • 6ES7138-4CF03-0AB0 Siemens
    $0.00 - $597.50
    $597.50
    $0.00 - $597.50
    $597.50

    6ES7138-4CF03-0AB0 Siemens

    SIMATIC DP, POWER MODULE PM-E F PROFISAFE, FOR ET 200S; 24V DC USEABLE FOR INSTALLATIONS WITH UNGROUNDED REFERENCE POTENTIAL RELAIS FOR FAIL-SAFE S...

    View full details
  • 6ES7154-4AB10-0AB0 Siemens
    $343.75 - $1,000.00
    $343.75 - $1,000.00
    $343.75 - $1,000.00
    $343.75

    6ES7154-4AB10-0AB0 Siemens

    Simatic DP, PROFINET Interface Module IM154-4 PN, High Feature FOR ET 200PRO, Integrated Switch, INCLUSIVE TERMINATING MODULE, CONNECTING Module IM...

    View full details
  • 6ES7138-4DF01-0AB0 Siemens
    $327.25 - $587.50
    $327.25 - $587.50
    $327.25 - $587.50
    $327.25

    6ES7138-4DF01-0AB0 Siemens

    SIMATIC DP, ELECTRONIC MODULE FOR ET 200S, 1 SI SERIAL INTERFACE ONE CHANNEL, 15MM WIDE RS232/422, 485 ASCII, 3964R

  • 6ES7143-3BH00-0XA0 Siemens
    $0.00 - $1,372.50
    $1,372.50
    $0.00 - $1,372.50
    $1,372.50

    6ES7143-3BH00-0XA0 Siemens

    SIMATIC DP, BASIC MODULE BM143 ET 200ECO: 8DI/8DO, 2A; 8 X M12,DOUBLE-ASSIGNEMENT, DEGREE OF PROTECTION IP65/67; CONNECTING BLOCK 6ES7194-3AA00-0.A...

    View full details
  • 6ES7155-6BA00-0CN0 Siemens
    Sold out
    $0.00 - $0.00
    $0.00
    $0.00 - $0.00
    $0.00

    6ES7155-6BA00-0CN0 Siemens

    SIMATIC ET 200SP, BUNDLE PROFIBUS IM, IM155-6DP HF, MAX. 32 PERIPHERY MODULES, AND 16 ET 200AL MODULES, MULTI HOT SWAP, BUNDLE CONTAINS: INTERFACEM...

    View full details
  • 6ES7137-6AA00-0BA0 Siemens
    $932.48 - $2,846.92
    $932.48 - $2,846.92
    $932.48 - $2,846.92
    $932.48

    6ES7137-6AA00-0BA0 Siemens

    SIMATIC ET 200SP, CM PTP communication module for serial connection RS422, RS485 and RS232, Freeport, 3964 (R), USS, MODBUS RTU Master, Slave, 1152...

    View full details
  • 6ES7151-1AA05-0AB0 Siemens
    $492.25 - $1,875.00
    $492.25 - $1,875.00
    $492.25 - $1,875.00
    $492.25

    6ES7151-1AA05-0AB0 Siemens

    SIMATIC DP, INTERFACE MODULE IM151-1 STANDARD FOR ET200S; INCL. TERMINATING MODULE DATA VOLUME 244BYTE FOR EACH INPUT AND OUTPUT; MAX. OF 63 PERIPH...

    View full details
  • 6ES7138-4FB03-0AB0 Siemens
    $316.25 - $1,680.08
    $316.25 - $1,680.08
    $316.25 - $1,680.08
    $316.25

    6ES7138-4FB03-0AB0 Siemens

    SIMATIC DP, Electronics module f. ET200S, 4 F-DO PROFIsafe, 24 V DC/2 A, 30 mm overall width, up to Category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO...

    View full details