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pnina
@pnina
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Joined: Nov 25, 2024
Last seen: Sep 19, 2026
Topics: 0 / Replies: 6
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RE: TIA V17 second valve FB call opens valve 1 as well, copied the call for valve 2

One call, one instance. The dialog default is right, the list is the trap.

34 minutes ago
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RE: S7-1500 OPC UA server connects, UaExpert shows no DB variables

Yes, that attribute. Open DB_Line in the editor and look at the columns "Accessible from HMI/OPC UA/Web API" and "Writable from HMI/OPC UA/Web API". I...

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

Your understanding is right. A changed interface is a changed DB layout, and a normal download of that initialises the DB from start values. Retain do...

5 hours ago
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RE: S7-1500 OPC UA, half the nodes BadNodeIdUnknown after a download that added one DB

There is your split. The nodes the CPU exposes from the standard SIMATIC interface carry string identifiers built from the symbolic name, "DB7".Weight...

10 hours ago
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RE: TIA V17 second valve FB call opens valve 1 as well, copied the call for valve 2

There it is. An FB has memory. Its inputs, outputs and statics live in the instance DB, not in the FB. On each call the input values get copied into t...

10 hours ago
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RE: TIA download to S7-1500 refused, "CPU is protected, enter password", integrator gone

Read access with a password is exactly what you see: online and monitoring free, any write asks. The project does not give the password back, the dots...

21 hours ago