Siemens
6DD1688-0AD0
Siemens 6DD1688-0AD0 SIMADYN D SS4 Communication Submodule 465688.9003.01 PLC
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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
Mitsubishi
QJ71E71-100
Mitsubishi MELSEC-Q QJ71E71-100 Ethernet Interface Module 5VDC 0.50A 100M PLC
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Industrial part
AB4864-C
Anybus AB4864-C EtherNet/IP Gateway Kit for Mettler Toledo IND570 Interface
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$1,815.89
Allen-Bradley
435NBX-N700
RTA Real Time Automation 435NBX-N700 ASCII to Allen-Bradley PLC Gateway Module
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$430.89
Fisher
W30381X0012
Fisher W30381X0012 100 Series RS-232 Communication Module
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$342.89
Fischer Porter
686B604U01
Fischer & Porter 686B604U01 G418-0 Communications Options Adapter Board Module
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$69.89
Phoenix Contact
2702766
Phoenix Contact 2702766 GW MODBUS TCP/RTU 2E/2DB9 Gateway Interface Converter
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$567.89
ProSoft
MVI56
ProSoft Technology MVI56 with Ethernet for ControlLogix 1700119 F/W REV 1.03
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$468.89
Allen-Bradley
1756-DNB/B
Allen-Bradley 1756-DNB/B ControlLogix DeviceNet Communications Module Industrial
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$11.89
Siemens
6ES7 241-1AH32-0XB0
Siemens SIMATIC S7-1200 6ES7 241-1AH32-0XB0 CM 1241 RS232 Communication Module
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$43.89
Allen-Bradley
1756-ENBT/A
Allen-Bradley 1756-ENBT/A ControlLogix EtherNet/IP Communication Bridge Module
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$25.89
Animatics
TC8715D
Technicolor TC8715D DOCSIS 3.0 Cable Modem WiFi Router Gateway Dual-Band 4-Port
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$14.89
Allen-Bradley
1771-RIO
Allen Bradley 1771-RIO Remote I/O Interface 1771RIO
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Wiremold
COM50
Wiremold COM50 Flush Poke-Thru Series Communication Adapter 1/2in BULK AVAILABLE
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$16.89
Intel
MP647569-004
Intel MP647569-004 PCI Ethernet Adapter Card
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$35.89
Industrial part
3014017
General Scanning 3014017 756523 Galvanometer Laser Scanner Module Industrial OEM
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Siemens
6GK1105-2AA00
Siemens Siemens 6GK1105-2AA00 Simatic NET OSMITP62 Industrial Ethernet Module
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$45.89
Numatics
240-239
Numatics Profibus DP Module G3 Series 240-179, 240-239
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$131.89
Industrial part
11-pin to ethernet ADAPTER CABLE
11-pin to ethernet ADAPTER CABLE
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$13.89
Fluke
Fluke Shielded RS 232 Cable Ethernet Adapter
Fluke Shielded RS 232 Cable Ethernet Adapter
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$33.89
Emerson
EPEXEIP001-ABAB
Emerson EPEXEIP001-ABAB 00-09-91-B5-1C-33 Ethernet IP Network Adapter, 2 CU Port
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$497.89
Industrial part
JBBS-57-E801
Bus Stop JBBS-57-E801 Devicenet
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$105.89
Omron
DCN1-3T-PORT
Omron DCN1-3T-PORT
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Reliance Electric
B100A
Reliance Electric Bridge Module B100A
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$273.89
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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.