The Floor · controls forum: Plant-floor questions, answered.
Siemens, Allen-Bradley, robots, networks and drives. Ask what the line is doing; TS Controls engineers and other members answer.
- Field notes
- 72, answered by TS Controls
- Platforms
- Siemens, Allen-Bradley, robots
- To post
- A free account
From members
Ask a question- Loading questions…
Field notes
72 common plant-floor faults, answered by TS Controls engineers.
- Where else do you read when The Floor is quiet?
- Analog noise that follows the robot dress pack — ground loop or shield?
- Hands-free optimization — what we refuse to let the loop change
- How did you get from maintenance tech to controls without a CS degree?
- 1769 analog input — 4–20 reads 3.9 mA after a lightning weekend
- Produced/consumed vs MSG for two Logix racks across a Stratix
- MSG to a remote CompactLogix — timeout only when the HMI is on that screen
- ABB MultiMove calibration drifted after a tool change — which cal do you rerun?
- PID_Compact on a 1500 — good in manual, oscillates in auto after a valve trim
- Dual-channel E-stop — channel 2 lags 40 ms and the safety PLC hates it
- EtherNet/IP scanner dropping a 1794 rack every 47 minutes
- ABB RAPID — World zone stops the cell only on shift change
- FANUC TP program — skip/jump that only fails on the second cycle
- PROFINET device name lost after a switch replacement — ET200SP won't assign
- Weld touchups creeping back on a KUKA + TIA cell we thought was done
- PLC-5 on DH+ still running a line — ENET-to-DH+ or bite the ControlLogix bullet?
- S7-300 to S7-1500 — what you keep in the DB and what you rewrite
- EtherCAT servo line vs PROFINET IRT — when is the extra bus worth it?
- Kinetix 5700 following error on a hemming roller after a weekend power hit
- TIA Portal v19 license floating away mid-download
- RSLinx Classic sees the EN2T, Studio 5000 does not
- GSDML version on an ET200SP doesn't match TIA — update the file or the module?
- Ignition gateway died on a VM snapshot — lesson so we don't repeat it
- PanelView 5500 vs 5310 for a new CompactLogix skid
- One change you would make to your plant alarm system tomorrow
- Obsolete ROTEC boards in an SGT-100 cabinet — repair, clone, or live with spares?
- Fixed hopper weigh system hunting ±3% after a load-cell swap
- 15-year-old Logix with no comments — do you comment in place or wrap and walk away?
- Someone asked me for a VFD firmware dump — hard no?
- How to ask a fault-code question so someone can actually help
- OPC UA explorer that doesn't wreck a production server
- IT wants the cell on the business VLAN 'for the dashboard' — how do you say no?
- SolaHD comm card — link light on, no registers
- S7-1200 web server is on — how much is too much to expose on a cell VLAN?
- S7-1500 watchdog after a TIA V19 download — cell stays in STOP
- First S7-1500H redundant pair — what bit you on switchover that the brochure skipped?
- Free Modbus RTU logger on Windows — what do you actually trust on a plant laptop?
- FANUC BG Logic vs a TP loop for a clamp interlock — where do you put it?
- Converting a 1998 cell to IIoT without ripping the PLC — what actually worked
- KUKA interrupt fires twice on the same skip — path jerks, then continues
- Fuel dispenser pump protocol to a PC — looking for a documented handshake
- GSV WallClockTime jumped an hour and our shift report lied
- First cal on a new E+H DP level on a 40 ft tank — wet-leg or dry?
- WinCC Unified vs Comfort for a new line we have to support 15 years
- Part tracking on a Unilogic conveyor — encoder vs photo-eye train
- Mark VIe talking to an EX2100e — comms fault only on breaker close
- Motion in SCL or keep it in ladder so maintenance can still read it?
- Light curtain on a standard CompactLogix — or do I buy GuardLogix for one cell?
- AC servo AL009 — motor will not run after a coupling change
- OEM skid with overlapping 192.168.1.0 — Stratix NAT or make them re-IP?
- ProSoft PLX32 EIP-to-Modbus TCP drops on a Yokogawa Centum with A3B0
- Studio 5000 compare before download — what do you actually look at?
- AUMA AC 01.2 actuator dead on WD-Timeout after a cabinet swap
- PowerFlex 525 hunts at 0.5 Hz on a metering screw — skip freq or a real tune?
- MicroLogix 1400 spare is unobtanium — 5380 or 5069 without rewriting the world?
- FactoryTalk View ME vs SE for a 14-screen cell — when do you stop using ME?
- MQTT Sparkplug vs OPC UA for a hall dashboard — pick one and why
- First PLC to learn in 2026 if I want plant work in the U.S.
- Kollmorgen ProMotion project from 2018 won't open in the current tool
- Troubleshooting plant job vs integrator — which one actually teaches you?
- Interviewer asked how many I/O my last project had — what do they want?
- USB stick on an HMI — real-world concern, not a slide
- S7-1500 OPC UA client — session error 3870_0600, UaExpert is fine
- Comfort Panel graphic list shows a cactus after a SiVArc generate
- How many robots per body-shop cell before the PLC scan is the bottleneck?
- Node-RED reads controller tags on a CompactLogix — program tags come back null
- CTU in TIA will not reset — I swear the R is firing
- 1771 rack still running — where are you actually finding cards that aren't fairy dust?
- L35E says the connection table is full — I only have one HMI
- Open-source HMI stacks plants will actually let on a panel PC
- PanelView Plus will not talk to a 5069-L306ER after a v37 flash
- Custom ESP32 I/O brick fails ICT one board in twenty — what did you fixture?
Nothing matches that search. Try fewer words, or ask it below.
Ask The Floor
Line down right now? Call (959) 232-1657 instead.
Log in to ask a question. Google, X or email.
Confirm your email to post. The link is in your inbox.