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hkraus
@hkraus
Eminent Member
Joined: Nov 18, 2024
Last seen: Sep 22, 2026
Topics: 0 / Replies: 25
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RE: ET 200SP inputs on the last two modules drop to 0 whenever the guard door opens

The light coloured BaseUnit starts a new potential group. Dark ones carry the supply along from the group before, a light one breaks it and takes its ...

3 weeks ago
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RE: S7-1500 ERROR LED on, diagnostics buffer area length error, CPU still in RUN

Not faulty. That entry tells you the block and the byte offset, so it's a programming error, not hardware. What's in DB120 at byte 4000? An array, and...

3 weeks ago
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RE: S7-1200 HSC misses pulses from a 2 kHz encoder, counts about half

Encoder output type, push-pull or open collector, and the pull-up value if it's open collector? And is that pulse width measured at the input terminal...

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

Online & diagnostics, Cycle time. What does it show for shortest, current and longest? Post the three numbers. And what's in the loop body, a UDT ...

3 weeks ago
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RE: PRONETA and TIA V17 find no PROFINET devices from the engineering VLAN, ping works

DCP is Discovery and Configuration Protocol, the PROFINET service that lists devices and hands out names and IP addresses. It rides on plain Ethernet ...

3 weeks ago
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RE: S7-1500 time-of-day one hour off after DST, RD_SYS_T and the Comfort panel disagree

RD_SYS_T gives you UTC. Always, on every 1500, and NTP feeds it UTC too, so that side is right. Your logic's fixed +1 was someone's way of getting loc...

3 weeks ago
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RE: TIA V18 hardware catalog stops at V4.5, new S7-1200 CPU is firmware V4.6

Hardware support package. V18 shipped before V4.6 existed, so the catalog doesn't know about it. Siemens publishes an HSP for the new firmware and you...

3 weeks ago
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RE: S7-1500 swapped from stock stays in STOP, download finishes and nothing runs

What does the display say when you scroll to the overview, and is there a memory card in the slot on the front? Also the MAINT LED, on or off. And is ...

3 weeks ago
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RE: TIA V17 load to 1214C fails, CPU firmware lower than configured V4.4

Expected. Rework those two for V2.2 and it runs, same CPU underneath.

4 weeks ago
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RE: TIA V17 load to 1214C fails, CPU firmware lower than configured V4.4

Configured version can never be higher than what the CPU actually runs. Two paths. Right click the CPU in Devices & networks, Change device versi...

1 month ago
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