Allen-Bradley
1756-CNB/D
Allen-Bradley 1756-CNB/D ControlLogix ControlNet Bridge Module Series D Used
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Communication & Network Modules
293 listings · 239 in stock
293 communication & network modules listings from the brands you use, each one photographed. Free shipping to all 50 US states.
Weekly new-arrivals email for Communication & Network Modules
Samsung
KPOS74BGWT
Samsung OfficeServ 7400 GWIMT KPOS74BGWT GA92-03602A Gateway Interface Module
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$541.89
Allen-Bradley
1794-ADN
Allen-Bradley 1794-ADN Flex I/O DeviceNet Adapter Module 24VDC Series B Network
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$10.89
Hewlett Packard
05990-60303
Hewlett Packard 05990-60303 Communication Module GC Analytical Scientific Part
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$79.89
Yokogawa
F3RZ91-0N
Yokogawa F3RZ91-0N RS-422 Interface Module PLC FA-M3 Communication Adapter Card
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$87.89
Minerva Networks
VCC-GIGE1
Minerva Networks VCC-GIGE1 CP236NHS Industrial Network Card Module Board OEM
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$97.89
Minerva Networks
20059-01
Minerva Networks VCC-MUX 20059-01 Demux Card Industrial Network Module OEM USA
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$108.89
Minerva Networks
20080-00
Minerva Networks VCC-MUX 20080-00 Rear Demux Card Industrial Network Module OEM
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$130.89
S-S Technologies
XL-S-2
S-S Technologies XL-S-2 X-Link Serial Gateway 24V RS-232 RS-422/485 CONFIG 3.6V
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$1,861.89
Marconi
210-1002-000
Marconi 210-1002-000 Network Card Module for ES-1200 Switch Industrial OEM USA
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$131.89
Honeywell
627-1002R
Honeywell 627-1002R MiniCOP Communication Module Industrial Process Controller
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$430.89
Pilz
MC7P
Pilz PNOZ mc7p 773726 CC-Link Communication Module 24VDC PNOZmulti Safety Relay
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$101.89
Schneider Electric
STBNDN2212
Schneider Telemecanique STBNDN2212 Advantys DeviceNet NIM Module Industrial PLC
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$90.89
Siemens
6DD1660-0BD0
Siemens 6DD1660-0BD0 SIMADYN D CS22 PLC Slave Communication Module Industrial
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$117.89
Milan
MIL-10
Milan MIL-10 Micro Twist Ethernet Transceiver 10M UTP 10Base-T Network Adapter
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$69.89
Square D
8030-COM-261
Square D SY/MAX 8030-COM-261 Communication Module Output PLC Industrial Control
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$175.89
Siemens
6DD1688-0AD0
Siemens 6DD1688-0AD0 SS4 SIMADYN D Communication Submodule PLC Module Board
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$51.89
Industrial part
PL-140-1000A
Symbol PL-140-1000A PDF 1000 Interface Barcode Scanner Module Lot of 3
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$57.89 / lot of 3
ADC
01-78904001
ADC Kentrox 01-78904001 D-Sub Connector Adapter Telecom Network Interface Module
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$28.89
Escort Memory Systems
CM11
Escort Memory Systems CM11 DeviceNet Interface Module Industrial RFID Reader
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$30.89
Mitsubishi
QJ71C24N-R2
Mitsubishi QJ71C24N-R2 MELSEC-Q RS-232 Serial Communication Module 5VDC PLC OEM
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$15.89
Industrial part
R429V35
Coastcom R429V35 V.35 Interface Card for R409 R428 Telecom Networking Module OEM
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$49.89
Allied
AT-MR901
Allied Telesyn AT-MR901 990-09139-00 Network Adapter Ethernet Hub Industrial OEM
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$227.89
Out of stock: we can often source these. Request a quote.
Foxboro
P0914YZ
Foxboro FCM2F2 P0914YZ Fieldbus Communications Module 24VDC 5.5W 2Mbps 2km Fiber
Out of stock
Sourcing on request
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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).
Guides for Communication & Network Modules
- Parts identificationHow to Read an Allen-Bradley Catalog Number & SeriesBulletin numbers, module codes, suffixes, the series letter and firmware revision, and how each one affects whether a replacement will work.
- DrivesPowerFlex 525 vs PowerFlex 40: Replacing a 22B DriveFootprint, terminals, parameters, EtherNet/IP and Safe Torque Off: how to migrate from a PowerFlex 40 to a 525, and when not to.
Troubleshooting guides
- Troubleshooting1756-EN2T / ENBT Ethernet Module Faults: LEDs & CodesThe status display messages, OK/NET/LINK LEDs, duplicate IP rules, rotary switches and 888, Logix connection codes and the diagnostic web pages (CPU, duplex, errors).
- TroubleshootingPLC Lost Communication: EtherNet/IP, DH+ and DeviceNet1756 EtherNet/IP OK, NET and LINK LEDs and duplicate IP, 16#0203 vs 16#0204, DH+ node addresses and terminators, DeviceNet scanner codes, 121-ohm terminators and bus-off.
- 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.