Forum

finn21
@finn21
New Member
Joined: Oct 6, 2025
Last seen: Sep 19, 2026
Topics: 5 / Replies: 30
Reply
RE: 1756-L73 major fault T06:C01 task watchdog expired after adding a routine

Is the watchdog basically a timer for how long one pass of the task is allowed to take?

1 month ago
Reply
RE: PLCSIM Advanced instance running, TIA Go online shows no accessible devices

Three entries: "Intel(R) Ethernet Connection I219-LM", "Siemens PLCSIM Virtual Ethernet Adapter", and "PLCSIM". I've only ever picked the first one.

1 month ago
Reply
RE: PIDE output stuck at 100 percent for minutes after steam came back

Why would the loop hold at 100 after the temperature is already past setpoint? Isn't the error negative then?

1 month ago
Reply
RE: 1769-L33ER watchdog fault, type 6 code 1, after adding an ST WHILE loop

Continuous. The IF is there because the first download gave me a type 4 code 20 array fault when i got to 50, so I put i back to 0 and that fault went...

1 month ago
Reply
RE: 1734-IB8S door switch input short to test output every time the door closes

Meter across the two panel wires with the switch disconnected reads 0.3 ohms so they are connected somewhere, but the old switch worked for years on t...

1 month ago
Reply
RE: TIA V17 can't find the S7-1500, device not accessible, but ping works

Cable's in the USB dongle, it shows up as "ASIX AX88179 USB 3.0 to Gigabit Ethernet". Direct to the CPU, no switch. Route print says 192.168.10.0 goes...

1 month ago
Reply
RE: MSG read works for one tag and errors for another on the same target controller

What's the External Access column for? I've never touched it. Not sure I get it.

1 month ago
Reply
RE: RSLinx shows red X on 1756-EN2T in RSWho, ping works from the same laptop

so it's like the laptop shouting in one room and the PLC being in the next room with the door shut? Ok.

1 month ago
Reply
RE: S7-1500 OPC UA server connects, UaExpert shows no DB variables

Is that the "Accessible from HMI" tick box thing? So if I've understood it, the DB has to be marked accessible, not just exist in the project?

1 month ago
Reply
RE: PowerFlex 525 16#0116 electronic keying mismatch after drive swap

So if I'm reading this right, the PLC expects the exact drive it was set up with and the new one's a different version, so it says no. Is that it?

1 month ago
Reply
RE: GuardLogix DCS discrepancy fault on one E-stop about once a week, button tests fine

Sorry, so the discrepancy time is how long the two contacts are allowed to disagree before it faults? So one contact is opening and the other is not, ...

1 month ago
Reply
RE: MicroLogix 1400 CTU counts two or three per bag from a photoeye, count 15 percent high

Could the scan be too fast and the PLC counting the same bag on two scans? We had something like that on a line at college, or I think we did.

1 month ago
Page 2 / 3