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tomhw
@tomhw
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Joined: Mar 3, 2025
Last seen: Sep 19, 2026
Topics: 3 / Replies: 10
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RE: S7-1500 diagnostics buffer "Distributed I/O: station failure" every few minutes

Pulled the second cable first thing this morning and the buffer's been quiet all shift. So it was the ring with no MRP, my topology said line and real...

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

V16 on both, TIA and PLCSIM, same update level? Mixed updates have bitten me before. And is FB_Conveyor from a vendor library or something you wrote i...

5 hours ago
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RE: SINAMICS G120 F01910 fieldbus setpoint timeout when the PLC goes to STOP

V17 here too. Does it fault only when the CPU goes to STOP, or also while the CPU is in RUN and you leave it alone for an hour? And post the CPU diagn...

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

V16 here as well. Don't delete it, and don't go looking for some tool that opens protected blocks either, whoever suggests it. Paste the compile erro...

9 hours ago
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RE: S7-1500 diagnostics buffer "Distributed I/O: station failure" every few minutes

It's a plain line. CPU port 1 to st-01 port 1, st-01 port 2 to st-02 port 1 and so on down to st-14, the drives are in the middle. Longest hop about 4...

9 hours ago
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RE: KTP700 Basic, TIA V16 transfer fails with no connection to device, panel answers ping

V16, fine. PN/IE is PROFINET / Industrial Ethernet, so yes, that's the Ethernet one. The panel's running your old project, right, not sitting in the S...

11 hours ago
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RE: PID_Compact stays Inactive on an S7-1200, State 0, Output never moves

OB30 at 100 ms is right, leave that alone. Look at the call: what's wired to Mode and ModeActivate? And in the static data, what's RunModeByStartup se...

12 hours ago
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RE: TIA V17 adding a static to an FB reset every recipe value in the instance DB

Retentive protects against a power cycle, not a new interface. The download made a new DB with a new layout and the old values had nowhere to go. Pret...

19 hours ago
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RE: TP1200 Comfort transfer from TIA V17 fails, project not compatible with device version

Probably not. That's the bootloader waiting for the rest of the image. Power cycle it, ours have always come back to the Start Center on the old image...

5 days ago
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RE: TP1200 Comfort transfer from TIA V17 fails, project not compatible with device version

V17 here too and I've done this to myself. The panel image is V15.1, the project's device version is V17, and the runtime that gets transferred has to...

1 week ago