Siemens
6AV6574-1AF04-4AA0
Siemens 6AV6574-1AF04-4AA0 Wall Bracket Mobile Panel 170/177/277 Black Steel
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$23.89
PLC Modules & Accessories
939 listings · 804 in stock
804 PLC Modules & Accessories listings are on our shelves today, each one photographed as the actual unit that ships, not a stock picture. You will find parts from Siemens, Omron and Mitsubishi among others.
More about PLC Modules & Accessories
By condition, the stock breaks down as 480 used, 216 open box, 101 new surplus, 4 refurbished and 3 sold for parts or repair. You can pick one up for as little as $6.89; the most expensive is $14,698.89. Everything ships from Princeton, TX: orders placed by 3 PM CT on a business day (Mon to Fri) go out the same day, and shipping is free to all 50 US states. Freight-size items are quoted after packing. Our 30-day guarantee covers every item here except those sold for parts or repair.
Phoenix Contact
PLC-RSC-230UC/21-21
Phoenix Contact PLC-RSC-230UC/21-21 2967099 Relay Module 220VDC/230VAC 8A 2PDT
Only 1 left
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$50.89
Allen-Bradley
1745-E151
Allen-Bradley 1745-E151 Ser A SLC 150 Expansion Unit 20 In/12 Out 120/240VAC PLC
Only 1 left
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$26.89
Gogo
P14126
Gogo P14126 Rev B Axxess Configuration Module ACM DO-160F FAA-PMA LEDs Avionics
Only 1 left
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$69.89
Square D
CRM-570
Square D 8030 CRM-570 SY/MAX SY/NET Interface Module Ser D2 Rev 4.00 5VDC 1.0A
Only 1 left
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$783.89
Dell
0FW331
Dell 0FW331 Rev A01 ExpressCard IR Travel Media Remote Control Electrical Module
Only 1 left
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$19.89
PLC
2X10
PLC I/O Interconnect Cable 20-Pin 2x10 Angled Both Ends 6ft 7in Gray DIN 47100
In stock
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$49.89
Siemens
PIP6-1CM
Siemens 6DP2658-7PC51-0AA0 CM 104 Module PIP6-1CM 8-28VDC 3.15A Rev A LAN USB
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$586.89
Siemens
6GK1901-1FC00-0AA0
Siemens 6GK1901-1FC00-0AA0 SIMATIC NET IE FC RJ45 Outlet CAT5 IP20 35mm DIN Rail
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$25.89
Eaton
WPONI
Eaton 97-1893-2 WPONI Interface Module 120V 50/60Hz 9600 Baud IMPACC INCOM W200
Only 2 left
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$82.89
Siemens
6ES7158-0AA01-0XA0
Siemens 6ES7158-0AA01-0XA0 DP/RS232C Link PROFIBUS-DP Converter 24V DC 300 mA
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$24.89
Panasonic
AFP02543-A
Panasonic AFP02543-A FP0 PLC Control Unit 24V DC 32 I/O 16 In 16 NPN Out Ver 2.3
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$195.89
GE Fanuc
IC697CMM711
GE Fanuc IC697CMM711 PLC Communications Coprocessor Module 2 Port RS-232/422
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$38.89
Atlas Copco
1900071062
Atlas Copco 1900071062 Elektronikon MkIV AIE-3 I/O Expansion Module 5VDC 100mA
Only 1 left
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$1,833.89
Johnson Controls
XTM-905-5
Johnson Controls XTM-905-5 Extension Module DX9100 24VAC 50/60Hz 5VA IP20 Rev 1
Only 2 left
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$340.89
Atlas Copco
AIE-3
Atlas Copco 8092248222 Elektronikon Mk IV AIE-3 I/O Expansion Module 5VDC 100mA
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$342.89
Mitsubishi
AD75P3-S3
Mitsubishi Electric AD75P3-S3 MELSEC A-series Positioning Module RS-422 PLC
Only 1 left
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$102.89
Cutler-Hammer
D100CRA20
Cutler-Hammer D100CRA20 Ser. A1 PLC Controller 20 I/O 115/230V 12x115VAC 8 Relay
Only 1 left
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$165.89
Mitsubishi
A1SJ71UC24-R2
Mitsubishi A1SJ71UC24-R2 MELSEC A1S Computer Link Module RS-232C DB9 19200 bps
Only 2 left
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$48.89
Marel
RS232
Marel MWS 3 Weighing Controller Module 3 Channel CAN Ethernet RS232 24V DIN Rail
Only 1 left
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$730.89
Allen-Bradley
96244077
Allen-Bradley 96244077 1786-RPFM ControlNet Fiber Repeater Module 5VDC 0.4A 2 CH
Only 1 left
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$149.89
Mitsubishi
A1SJ71AT21B
Mitsubishi A1SJ71AT21B MELSEC A1S MELSECNET/B Data Link Module PLC Industrial
Only 2 left
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$101.89
Roxtec
20W40/30
Roxtec CM 20w40/30 SS Sealing Module 40x20x30mm 3.5-16.5mm 2 Openings LOT OF 18
In stock
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$155.89 / lot of 18
Allen-Bradley
1783-MX08T
Allen-Bradley PN-16211 1783-MX08T Stratix 8000 Module 8 RJ45 12VDC 0.3A Ser A
Only 1 left
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$60.89
Siemens
6ES7193-4CD20-0AA0
Siemens 6ES7193-4CD20-0AA0 Connector, New
Available
Free shippingShips in 3 to 5 business days
$163.89
Allen-Bradley
1747-PIC
Allen-Bradley 1747-PIC PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$532.89
GE Fanuc
IC655CCM590A
GE Fanuc IC655CCM590A PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$206.89
Keyence
CB-EP100
Keyence CB-EP100 PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$68.89
B&b Electronics
485OPDR
B&b Electronics 485OPDR PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$349.89
Allen-Bradley
1772-MJ
Allen-Bradley 1772-MJ PLC Processor, New
Available
Free shippingShips in 3 to 5 business days
$103.89
Siemens
6ES5308-3UB11
Siemens 6ES5308-3UB11 PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$70.89
Reliance Electric
45C631
Reliance Electric 45C631 PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$660.89
Siemens
6DD1681-0DD1
Siemens 6DD1681-0DD1 Connector, New
Available
Free shippingShips in 3 to 5 business days
$130.89
GE Fanuc
IC693CMM311R
GE Fanuc IC693CMM311R PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$890.89
Keyence
NU-EN8N
Keyence NU-EN8N Sensor, New
Available
Free shippingShips in 3 to 5 business days
$930.89
Unitronics
IO-AI4-AO2
Unitronics IO-AI4-AO2 PLC Module, New
Available
Free shippingShips in 3 to 5 business days
$508.89
Get a quote on PLC Modules & Accessories
Need more units than we list, a part you don't see here, or prices for a whole list? Send us the part numbers and quantities and we reply within 1 hour during business hours (Mon to Fri 9 to 4:30 CT).
Coming soon in PLC Modules & Accessories: price being set
On our shelf, not priced yet. Open one to request a quote or get an email when it's priced.
Guides for PLC Modules & Accessories
- Obsolete partsFinding Obsolete Siemens, GE Fanuc & Fanuc PartsHow to read Siemens order numbers, GE Fanuc catalog numbers and Fanuc part numbers, which version details matter, and where surplus fits.
- Parts identificationHow to Read Siemens Order Numbers (MLFB)What the 6ES7, 6SL3, 3RT and 3VA prefixes mean, where to find the product version and firmware, and what to check before you swap a Siemens part.
Troubleshooting guides
- TroubleshootingPLC Won't Go to RUN? Allen-Bradley Mode and Fault ChecksKeyswitch and mode-switch positions, the faults that block RUN, firmware and project mismatches, missing or wrong I/O modules, forces, and the order to check them in.
- TroubleshootingControlLogix & CompactLogix Major Fault Codes ExplainedMajor fault types and codes (T01 power-up to T07 memory), where to read them in Studio 5000, minor vs major vs I/O faults, the first checks and clearing a fault safely.
- TroubleshootingSiemens S7-300/S7-400 SF & BF LEDs and Diagnostic BufferSF vs BF (and INTF, EXTF, BUSxF on the S7-400), steady vs flashing, reading the diagnostic buffer in STEP 7, and the first checks for modules, PROFIBUS, PROFINET and backup batteries.
PLC Modules & Accessories: common questions
Do you have PLC Modules & Accessories in stock?
Yes. 804 PLC Modules & Accessories listings are in stock right now, priced from $6.89 to $14,698.89. Every one is photographed, and all of them are listed on this page.
Which brands of PLC Modules & Accessories do you carry?
Mostly Siemens, Omron and Mitsubishi, plus 147 more brands. The Brand filter on this page narrows the list to one maker.
Do in-stock items in PLC Modules & Accessories ship the same day?
Yes, when you order by 3 PM CT on a business day (Mon to Fri): in-stock items ship the same day from Princeton, TX, with free shipping to all 50 US states. Freight-size items are quoted after packing.
Can I request a part you don't list in PLC Modules & Accessories?
Yes. Request a quote with the part number and we check our warehouse and our sourcing network. We answer within 1 hour during business hours (Mon to Fri 9 to 4:30 CT).