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kaim
@kaim
Active Member
Joined: Jan 28, 2025
Last seen: Sep 22, 2026
Topics: 0 / Replies: 17
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RE: Excel logger lives on one engineer's PC and that PC is on the rebuild list

Do the alert before you forget the whole thing exists. That is the failure you described.

2 weeks ago
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RE: Excel logger lives on one engineer's PC and that PC is on the rebuild list

You are both arguing about the box and the box is the least interesting part of it. Split it in two. One process talks to the PLCs and writes into a l...

2 weeks ago
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RE: Parts per minute goes to a huge number at power-up, divide by zero on an S7-1500

Real by Real changes the answer. That's not a division error any more, that's IEEE 754, and 5.0 divided by 0.0 is positive infinity, a legal Real valu...

2 weeks ago
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RE: Daily part count out of the PLC into Excel every morning, no SCADA here

If it were a CODESYS target I'd have told you the runtime writes the file itself, SysFile, mount a share and it lands on the PC with no middleman. Ple...

2 weeks ago
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RE: Eight machines, one screen for everything, proper SCADA or a bigger PanelView Plus 7

Come back about the SLC driver. That is the part I would check first.

3 weeks ago
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RE: 1769-L33ER faults type 4 code 20 when the recipe number from the HMI reaches 20

The log keeps them until you clear it, it doesn't clear itself. Nice that 25 is boring now.

3 weeks ago
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RE: Two E-stops and one guard door, safety relay or Compact GuardLogix for a small cell

One thing I'd add. If the customer ever wants the door and the E-stops to do different things, say door stops the spindle but holds the clamp, that's ...

3 weeks ago
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3 weeks ago
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RE: Logix press station with an OTL per state ends up pressing and ejecting at the same time

Old bits feeding the screens is honest enough. 4000 clean cycles is the answer.

3 weeks ago
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RE: 1756-L71 bottle count is exactly double on one line, ONS and ADD, sensor is clean

Twice per bottle, yes. Each JSR sits behind its own ONS and each one sees the same rising edge and fires once. Two calls, two ADDs, one bottle. The on...

3 weeks ago
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RE: Eight machines, one screen for everything, proper SCADA or a bigger PanelView Plus 7

Then you have your answer, and it is not about how many machines fit on a screen. Eight on one overview panel is fine, a Plus 7 will hold the shortcut...

3 weeks ago
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RE: Logix SFC step goes inactive but the valve OTE stays on into the next step

Every SFC dialect answers this differently. CODESYS drops an N qualifier action's outputs when the step deactivates. GRAPH on the Siemens side does th...

3 weeks ago
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RE: E-stop on a Micro820 standard input, program stops but the PowerFlex 4M keeps running

Keep your rung change, it's a good process stop. It is not the E-stop, and no rung ever will be. Same on a Micro820, a Siemens, a CODESYS box. An E-s...

3 weeks ago
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RE: Two E-stops and one guard door, safety relay or Compact GuardLogix for a small cell

What does the risk assessment say has to happen for each one? Door open and E-stop pressed, same response, spindle off and clamp released? Or differen...

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

What do you want at the end of it, to read the plant's programs and follow a fault, or to write your own from nothing? The answer's different, and not...

3 weeks ago
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