https://iqelectro.com/blogs/news/powerflex-525-parameters 2026-08-25T15:55:29-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/PowerFlex_525_parameters_1_f382453d-d976-4633-931b-34f0e1f065d6.jpg?v=1787687729 PowerFlex 525 Parameters: The Ones That Actually Matter for Setup and Swaps PowerFlex 525 AC drive mounted on DIN rail inside a control panel https://iqelectro.com/blogs/news/allen-bradley-sinking-sourcing-pnp-npn 2026-08-25T16:03:23-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/2_Sourcing_vs_Sinking_PNP_vs_NPN_ff0d78bc-76ad-4b6a-b4e7-4b1c78aee4a3.jpg?v=1787688203 Sinking, Sourcing, PNP, NPN: How to Read an Allen-Bradley Input Card Without Guessing Allen-Bradley 1769-IQ16 input module with terminal cover open https://iqelectro.com/blogs/news/safety-plc-vs-safety-relay 2026-09-03T15:27:39-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/6_Safety_PLC_or_safety_relay_3a869218-43e2-43e1-998d-6ed3be18d9d1.jpg?v=1788463659 Safety PLC or Safety Relay: How to Pick, and the Catalog Traps That Cost You Money Allen-Bradley CompactBlock Guard I/O safety module, two angles https://iqelectro.com/blogs/news/is-the-slc-500-obsolete 2026-08-25T16:16:41-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Is_the_SLC_500_obsolete_a18bebdf-c85f-44c6-85d6-8eacc7828277.jpg?v=1787689001 Is the SLC 500 obsolete? The answer depends on what is in your I/O slots Allen-Bradley SLC 5/05 processor mounted in an industrial control panel https://iqelectro.com/blogs/news/stratix-5700-vs-5200 2026-08-25T16:19:29-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Which_Allen-Bradley_Stratix_switch_you_actually_need_abb8d89a-2cf7-4dd2-8e67-1742138038e3.jpg?v=1787689169 Which Allen-Bradley Stratix switch you actually need, and what breaks when you swap a 5700 Allen-Bradley Stratix 5700 switch next to a Stratix 5200 switch https://iqelectro.com/blogs/news/3-wire-vs-4-wire-rtd 2026-08-25T16:24:00-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/6_3-wire_vs_4-wire_RTD.jpg?v=1787689440 3-wire vs 4-wire RTD: what actually changes, and what your Allen-Bradley module does with the fourth wire 3-wire RTD sensor head with red, white, and blue leads wired to terminals https://iqelectro.com/blogs/news/modbus-rtu-spec-numbers-that-matter 2026-08-25T16:29:41-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/6_Modbus_RTU_the_spec_numbers_that_matter_b7963917-7d29-4a3c-8368-e77c3b7dd464.jpg?v=1787689781 Modbus RTU: the spec numbers that matter, and what actually breaks on the floor Technician probing a shielded RS-485 cable at a terminal block https://iqelectro.com/blogs/news/serial-to-ethernet-converter 2026-08-26T10:09:15-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_What_a_serial_to_ethernet_converter_actually_does_and_where_it_stops_e124881a-7d24-4d77-852b-b3907b4e4288.jpg?v=1787753355 What a serial to ethernet converter actually does, and where it stops Serial to Ethernet gateway wired to an older serial power meter https://iqelectro.com/blogs/news/ethercat-vs-ethernet 2026-08-26T10:12:26-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/5_EtherCAT_vs_Ethernet_what_you_are_really_choosing_ba47a6e7-d366-43e8-ae4c-ba5092967dec.jpg?v=1787753546 EtherCAT vs Ethernet: what you are really choosing, and the numbers behind it Technician connecting an Ethernet patch cable in a control panel https://iqelectro.com/blogs/news/rslogix-500-software 2026-08-26T10:19:19-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/6_RSLogix_500_software_what_is_actually_free_4b3588aa-ef0d-44b9-97a5-210472e2fe55.jpg?v=1787753959 RSLogix 500 software: what is actually free, and which edition talks to your processor Technician connecting a serial cable to an Allen-Bradley PLC rack https://iqelectro.com/blogs/news/rs485-vs-rs232 2026-08-26T10:25:27-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_RS485_vs_RS232_why_one_is_actually_faste_2b8a2357-639b-42f7-9d09-4755bad1690d.jpg?v=1787754327 RS485 vs RS232: why one is actually faster, and where the real limits are Twisted pair landed on a terminal block next to a hanging D-sub connector https://iqelectro.com/blogs/news/control-panel-design-sccr 2026-08-26T10:30:28-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Control_panel_design_why_your_65_kA_panel_is_actually_rated_5_kA_a2d14a54-c090-4d2d-b051-5e4dd154f852.jpg?v=1787754628 Control panel design: why your 65 kA panel is actually rated 5 kA Allen-Bradley 140G-G6C3-D12 molded case circuit breaker, 125 A frame, 65 kA at 480V https://iqelectro.com/blogs/news/vfd-ground-fault-powerflex-525 2026-08-26T10:35:12-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_VFD_ground_fault_on_a_PowerFlex_525_bffc13b8-9ccc-4d1e-844c-464a768b5814.jpg?v=1787754912 VFD ground fault on a PowerFlex 525: what F013 is actually measuring Allen-Bradley PowerFlex 525 drive in an open control cabinet beside a wire duct, with two ferrite cores on the shelf https://iqelectro.com/blogs/news/rtd-vs-thermistor 2026-08-26T10:37:41-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_RTD_vs_thermistor_the_choice_your_input_card_already_made_for_you.jpg?v=1787755061 RTD vs thermistor: the choice your input card already made for you Allen-Bradley 1769-IR6 RTD input module mounted on a DIN rail in an open control cabinet https://iqelectro.com/blogs/news/modbus-tcp-register-offset 2026-08-26T10:56:28-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Modbus_TCP_the_register_offset_nobody_agrees_on_19f140a0-40be-42a8-8483-702803ce09a5.jpg?v=1787756188 Modbus TCP: the register offset nobody agrees on, and the connection that drops on its own https://iqelectro.com/blogs/news/xic-vs-xio 2026-08-26T10:58:34-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_XIC_vs_XIO_in_Allen-Bradley_ladder_logic_c40f288a-2616-45e6-a54d-c78edf725e08.jpg?v=1787756314 XIC vs XIO in Allen-Bradley ladder logic: why your stop button is still an XIC Allen-Bradley 1769-L33ER CompactLogix controller mounted on DIN rail in a control panel https://iqelectro.com/blogs/news/iolink-master-troubleshooting-1734-4iol 2026-08-26T11:02:33-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_IO-Link_master_troubleshooting_4ccb2e7d-b015-436b-9894-5ae061ea92c6.jpg?v=1787756553 IO-Link Master Troubleshooting: 1734-4IOL Errors Explained Allen-Bradley 1734-4IOL POINT I/O IO-Link master module standing on a workbench in a panel shop https://iqelectro.com/blogs/news/loop-powered-4-20ma 2026-08-26T11:07:49-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Loop_powered_4-20mA.jpg?v=1787756869 Loop powered 4-20mA: where the volts go, and why the device stays dark Rosemount transmitter for a loop powered 4-20mA HART circuit https://iqelectro.com/blogs/news/vfd-hvac-troubleshooting 2026-08-26T11:10:59-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_VFD_HVAC_troubleshooting_1073f1e3-4f27-46b0-993b-82c34eddbc87.jpg?v=1787757059 VFD HVAC troubleshooting: why the drive trips when the motor is fine VFD HVAC troubleshooting: ABB ACH550-UH drive mounted in a rooftop unit control panel https://iqelectro.com/blogs/news/pid-for-temperature-control 2026-08-26T11:12:17-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_PID_for_temperature_control_d97f6b85-eeaf-41b3-bb32-c78173f3ddde.jpg?v=1787757137 PID for temperature control: measure the delay before you touch a single gain Honeywell UDC1200 universal digital process controller on a white background https://iqelectro.com/blogs/news/vfd-cable 2026-08-26T11:16:14-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_VFD_cable_6de69f87-0d36-4852-9b0c-8467d1c9763f.jpg?v=1787757374 VFD cable: when it saves the motor, and when you are paying for nothing Cross-section comparison of VFD cable versus four THHN conductors in conduit https://iqelectro.com/blogs/news/panel-wire-color-chart 2026-08-26T16:45:48-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_The_panel_wire_color_chart.jpg?v=1787777148 The panel wire color chart that holds up, and the one stripe everybody reverses Panel wire color chart showing UL 508A control and power circuit conductor colors https://iqelectro.com/blogs/news/profinet-vs-profibus 2026-08-27T16:43:22-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_PROFINET_vs_PROFIBUS.jpg?v=1787863402 PROFINET vs PROFIBUS: the gateway spec that decides whether your HMI still talks Siemens S7-300 CPU 317-2 PN/DP with PROFINET and PROFIBUS ports mounted in a control panel https://iqelectro.com/blogs/news/electrical-troubleshooting 2026-08-28T18:05:25-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Electrical_troubleshooting.jpg?v=1787954725 Electrical troubleshooting: split the circuit before you start pulling parts Allen-Bradley 1492-WFB424 LED indicating fuse block used in electrical troubleshooting https://iqelectro.com/blogs/news/fluke-773-alternatives 2026-08-31T17:06:08-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Fluke_773_alternatives.jpg?v=1788210368 Fluke 773 alternatives: what the cheap option actually gives up Diagram comparing a live 4-20 mA loop read by a clamp meter on the left against the same loop broken open by a multimeter wired in series on the right https://iqelectro.com/blogs/news/what-is-opc-ua 2026-09-02T08:09:24-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_What_is_OPC_UA.jpg?v=1788350964 What is OPC UA, and who should be the server on your line Allen-Bradley 1756-L85E ControlLogix 5580 controller standing on a panel builder's bench with a patch cable and tools https://iqelectro.com/blogs/news/electrical-schematic-drawing-software 2026-09-03T17:11:16-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Electrical_schematic_drawing_software.jpg?v=1788469876 Electrical schematic drawing software: what the free tools actually do, and where the price stops being published Electrical schematic drawing software comparison across free and paid tools https://iqelectro.com/blogs/news/meanwell-power-supply 2026-09-04T17:52:53-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Is_a_Meanwell_power_supply_any_good.jpg?v=1788558773 Is a Meanwell power supply any good? What actually fails, and how to check yours is real Cutaway diagram of a power supply's capacitors and fan, the two parts that wear out https://iqelectro.com/blogs/news/codemeter-factorytalk-activations 2026-09-07T16:38:25-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_CodeMeter.jpg?v=1788813505 CodeMeter: why your FactoryTalk activations vanish, and the order to check things in Diagram of FactoryTalk Activation Manager sitting above the CodeMeter runtime service and its four license container types https://iqelectro.com/blogs/news/dcs-vs-plc 2026-09-08T16:16:06-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_DCS_vs_PLC.jpg?v=1788898566 DCS vs PLC: the difference is the server, not the controller Allen-Bradley 1756-L85EP ControlLogix process controller mounted flush in an open 1756 chassis https://iqelectro.com/blogs/news/1756-en2tr-vs-en2t-enbt-en4tr 2026-09-09T15:59:31-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_1756-EN2TR_vs_EN2T_ENBT_and_EN4TR.jpg?v=1788983970 1756-EN2TR vs EN2T, ENBT and EN4TR: which one your chassis actually needs Allen-Bradley 1756-EN2TR dual-port EtherNet/IP module seated in a ControlLogix chassis inside a control cabinet https://iqelectro.com/blogs/news/control-panel-design-nfpa-79 2026-09-10T16:54:27-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Control_panel_design.jpg?v=1789073667 Control panel design: what NFPA 79 actually requires, and what is just habit Control panel diagram showing field wiring, heat producers, and control zones stacked top to bottom https://iqelectro.com/blogs/news/best-virtual-machine-rslogix-studio-5000 2026-09-11T16:04:06-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_The_best_virtual_machine.jpg?v=1789157046 The best virtual machine for RSLogix and Studio 5000 is the one your activation survives Laptop, Allen-Bradley 1784-U2DHP adapter, and SLC 5/04 CPU connected on a workbench https://iqelectro.com/blogs/news/safety-light-curtain-wiring-diagram 2026-09-14T15:41:16-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Safety_light_curtain_wiring_diagram.jpg?v=1789414876 Safety light curtain wiring diagram: why the E-stop does not go on the same input Omron safety light curtain mounted on a machine guard gate in a factory cell https://iqelectro.com/blogs/news/powerflex-525-fault-codes 2026-09-15T15:54:26-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_PowerFlex_525_fault_codes.jpg?v=1789502066 PowerFlex 525 fault codes: what the drive is measuring before it trips Close-up of an Allen-Bradley PowerFlex 525 keypad and display showing fault code F004 https://iqelectro.com/blogs/news/devicenet-troubleshooting 2026-09-16T15:59:40-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_DeviceNet_troubleshooting.jpg?v=1789588780 DeviceNet troubleshooting: the readings that find the fault before you swap a scanner Allen-Bradley 1747-SDN DeviceNet scanner module on a workbench with a multimeter and cable https://iqelectro.com/blogs/news/connected-components-workbench 2026-09-17T16:29:42-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Connected_Components_Workbench.jpg?v=1789676982 Connected Components Workbench: what the free edition actually does, and where it bites Allen-Bradley Micro820 PLC controller, front view showing terminal blocks and status indicator LEDs https://iqelectro.com/blogs/news/panelview-plus-7-software 2026-09-18T16:33:36-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_PanelView_Plus_7_software.jpg?v=1789763616 PanelView Plus 7 software: what is already on the terminal, and what you actually pay for Allen-Bradley PanelView Plus 7 terminal on a panel shop bench with the screen off https://iqelectro.com/blogs/news/rtd-temperature-sensor-calibration 2026-09-21T17:08:48-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_RTD_temperature_sensor_calibration.jpg?v=1790024928 RTD temperature sensor calibration: three jobs that share one name Allen-Bradley 1756-IR6I RTD input module resting on a workbench, showing its RTD INPUT label and connector https://iqelectro.com/blogs/news/managed-vs-unmanaged-switch 2026-09-22T16:08:50-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Managed_vs_unmanaged_switch.jpg?v=1790107730 Managed vs unmanaged switch: it's the traffic and the loops, not the device count Allen-Bradley Stratix 2000 unmanaged switch and Stratix 5700 managed switch side by side, showing the port and faceplate difference between an unmanaged and a managed industrial Ethernet switch https://iqelectro.com/blogs/news/scada-software-old-plcs 2026-09-23T18:08:46-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_SCADA_software.jpg?v=1790201326 Choosing SCADA software when the PLCs are older than the PC Allen-Bradley 1747-L552 SLC 5/05 processor beside a laptop running SCADA software https://iqelectro.com/blogs/news/plc-simulator-software 2026-09-24T16:54:23-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_PLC_simulator_software.jpg?v=1790283263 PLC simulator software: which one runs your real project, and when the free clock stops Allen-Bradley 1756-L85E ControlLogix 5585 controller on an engineering desk https://iqelectro.com/blogs/news/1734-aent-setup-without-studio-5000 2026-09-25T18:10:58-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_1734-AENT.jpg?v=1790374258 1734-AENT setup without Studio 5000: IP address, chassis size, and why it rejects your changes 1734-AENT POINT I/O EtherNet/IP adapter, Series B, thumbwheels set to 050 https://iqelectro.com/blogs/news/variable-frequency-drive 2026-09-28T15:07:20-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Variable_frequency_drive.jpg?v=1790622439 Variable frequency drive: what happens inside, and why your meter says 300 V on a 600 V motor Allen-Bradley PowerFlex 525 variable frequency drive standing upright on a workbench, not yet installed https://iqelectro.com/blogs/news/siemens-plc-software 2026-09-29T17:07:09-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Siemens_PLC_software_ef10d28a-cc7a-4767-b064-7e9991021174.jpg?v=1790716029 Siemens PLC software: which package your CPU needs, and why the project version decides what you can upload Siemens S7-1200 CPU 1212C on a workbench beside a laptop and a blue Ethernet cable, ready for Siemens PLC software https://iqelectro.com/blogs/news/interposing-relay 2026-09-30T16:19:28-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Interposing_relay_or_direct_drive.jpg?v=1790799568 Interposing relay or direct drive: will your PLC relay output survive the contactor coil? Allen-Bradley 700-HLT terminal block interposing relay with a plug-in relay on a gray background https://iqelectro.com/blogs/news/codesys-plc 2026-10-01T16:08:37-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_CODESYS_PLC.jpg?v=1790885317 CODESYS PLC: which controllers run it, and what breaks when you change brands Two CODESYS PLC controllers side by side: WAGO PFC200 750-8212 and Schneider Modicon M251 TM251MESE https://iqelectro.com/blogs/news/braking-resistor-powerflex-525 2026-10-02T16:02:23-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Braking_resistor_on_a_PowerFlex_525.jpg?v=1790971343 Braking resistor on a PowerFlex 525: why the drive still trips F005, and why the resistor cooks at standstill Allen-Bradley braking resistor with leads and mounting hardware beside a PowerFlex 525 drive https://iqelectro.com/blogs/news/class-1-div-2-enclosures 2026-10-05T16:17:09-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_Class_1_Div_2_enclosures.jpg?v=1791231429 Class 1 Div 2 enclosures: what has to be rated, and when a plain 4X box is enough Allen-Bradley CompactLogix 5380 controller 5069-L340ERM standing on a workbench https://iqelectro.com/blogs/news/5069-fpd 2026-10-06T16:13:45-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_5069-FPD.jpg?v=1791317625 5069-FPD: when you need one, where it goes in the rack, and the OW16 series that needs DC 5069-FPD field potential distributor between a 5069-OB16 DC output module and a 5069-OA16 AC output module https://iqelectro.com/blogs/news/5069-ob16-flashing-red 2026-10-07T16:28:59-04:00 weekly https://cdn.shopify.com/s/files/1/0800/0392/4266/articles/1_5069-OB16_flashing_red.jpg?v=1791404938 5069-OB16 flashing red: what each light means and the four faults behind it Allen-Bradley 5069-OB16 output module on a workbench next to a multimeter and test leads