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tomhw
@tomhw
Trusted Member
Joined: Mar 3, 2025
Last seen: Sep 19, 2026
Topics: 7 / Replies: 37
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RE: S7-1500 mixer sequence restarts from step 1 after every E-stop reset, batch dumped

Held state done. Step 99 is Held, Step_Held keeps the real step, all outputs off, agitation timer moved to a TONR. Resume button on the KTP900 re-chec...

3 weeks ago
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RE: PROFIsafe F-DI passivates with F-monitoring time exceeded since the MRP ring went in

F-monitoring time raised on every F-module across all six stations, above the ring reconfiguration figure with margin, the customer's safety person se...

3 weeks ago
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RE: ET 200SP F-DI 8x24VDC HF passivates a guard door switch with a discrepancy error

Confirmed 10 ms in the project. Set the pair to 300 ms after watching the two channels online for a while, on a hard close they were further apart tha...

3 weeks ago
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RE: Modbus TCP over LTE, half of twelve wellpad RTUs time out every poll cycle

Merged into one block of 110 registers per site and the RTUs don't mind the gaps at all. All twelve clean for two days. It was a poll budget built fo...

3 weeks ago
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RE: TIA V16 PLCSIM load fails, "simulation is not supported" for a block

That box is off in every project I ship. Should change that.

3 weeks ago
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RE: TIA Portal compile error on a know-how protected FB from the OEM, can't open it

Same scramble on a cartoner last year, V16 as well. Builder answered in ten minutes.

3 weeks ago
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RE: Two RSLogix 5000 ACD files after a contractor visit, need to see what changed rung by rung

Ten minutes against your hour. Still want to know where 3500 came from.

3 weeks ago
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RE: S7-1500 goes to STOP, maximum cycle time exceeded twice, OB 80, after a program change

Chunked it, 250 entries per scan with a static index, so a full pass takes 16 scans, which is fine for a recipe compare. Longest cycle is 71 ms after ...

3 weeks ago
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RE: KTP700 Basic shows

I'd go with the second as well. The tutorial wasn't wrong for new projects, I reckon optimized is what you want on a 1200 anyway. I shipped machines f...

3 weeks ago
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RE: No PLC at home, which free simulator is worth the hours for ladder and timers

Three that are real, and a fourth thing that matters more than all of them. Connected Components Workbench from Rockwell, free, and from V12 or so it...

3 weeks ago
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RE: PROFIsafe F-DI passivates with F-monitoring time exceeded since the MRP ring went in

Checked with the customer's IT. Second XC208 shows a port going down and up a few times a day, old patch lead to the far station. Ring manager logs a ...

3 weeks ago
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RE: Modbus TCP over LTE, half of twelve wellpad RTUs time out every poll cycle

One channel per site, timeout 5 s, cycle 30 s. Ten of twelve are clean now. The other two still time out about one poll in five, and they're the two t...

3 weeks ago
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RE: S7-1500 mixer sequence restarts from step 1 after every E-stop reset, batch dumped

The relay, at the moment, nothing else. There's no Resume button on the panel because there was never a resume, it was Start or nothing. Agitation, 40...

3 weeks ago
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RE: S7-1500 goes to STOP, maximum cycle time exceeded twice, OB 80, after a program change

Shortest 41 ms, current 88 ms, longest 312 ms. Before the FC the longest used to be around 60. The loop body compares a UDT of 12 members per entry, s...

3 weeks ago
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RE: ET 200SP F-DI 8x24VDC HF passivates a guard door switch with a discrepancy error

Whatever TIA put in when I set the pair to 1oo2. I never touched it, that one's on me. 10 ms I think, I'll confirm tomorrow from the project. Switch i...

3 weeks ago
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