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rsdave
@rsdave
Trusted Member
Joined: Dec 2, 2024
Last seen: Sep 22, 2026
Topics: 1 / Replies: 64
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RE: Point I/O modules past slot 8 fault intermittently, 1734-AENTR itself is fine

Put the EP24DC in as slot 9 in the tree before it arrives, offline, and use Find and Replace for the aliases. Ten minutes.

3 weeks ago
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RE: 1769-L33ER loads a months-old program from the SD card after every power cycle

Memory's fine. Is there an SD card in the front of that L33? Controller Properties, Nonvolatile Memory tab, what does it show for the image on the car...

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

Studio version, and how many places is Count_Bottles called from? Go to the routine, right click, Cross Reference, and look at the JSR entries.

3 weeks ago
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RE: Conveyor restarts by itself when the guard door closes, no reset press, GuardLogix cell

Program, not the switch. Safety routine, find the DCS instruction for that door. It has a Restart Type parameter, Automatic or Manual. Which is it? An...

3 weeks ago
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RE: ControlLogix redundancy stays Disqualified after replacing a 1756-EN2T in the secondary

That's the mismatch. Redundancy needs the partner modules in matching slots at the firmware the bundle lists, and the bundle for 31 lists a specific E...

3 weeks ago
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RE: Eleven remote racks drop 16#0204 at line start-up, 1756-EN2T fine once running

What firmware on the EN2T, and which Studio version? Before you swap anything else, open the EN2T's web page, Diagnostics, Ethernet Statistics if I re...

3 weeks ago
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RE: CompactLogix solenoid output chatters, rung is true in one place and false in another

Card's probably fine. Before anything else, right click the output tag and do Cross Reference. How many OTEs come back for Local:2:O.Data.4? Not XICs,...

3 weeks ago
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RE: Studio 5000 go online shows upload or download, offline file doesn't match

Carl's right, and here's the order. Pick Upload, and when it asks for the file, Save As a new name, Bagger_2026-09_upload.ACD, so the 2022 file stays ...

3 weeks ago
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RE: ControlLogix T04:C34 timer preset negative after operator loads a recipe

Not a firmware bug. A T04:C34 is the controller telling you the .PRE or .ACC of a timer went negative, which only happens if something upstream is wri...

3 weeks ago
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RE: Can't open an RSLogix 5000 v20 project on a laptop with Studio 5000 v33 and v36

Keep that 20.05 installer somewhere safe. You'll need it again.

3 weeks ago
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RE: CompactLogix periodic task overlap count climbing, PanelView sluggish

Periodic tasks always win over the continuous task, and comms live off the continuous task's time slice. Starve that and the PanelView starves.

3 weeks ago
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RE: 1756-L71S faults with safety partner missing after a chassis rebuild, L7SP is in the rack

What slot is the L7SP sitting in now, count from the left with the power supply not counted. And what slot was it in on the old chassis. Also is there...

3 weeks ago
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RE: FactoryTalk View Studio v12 opens in demo mode after a server reboot

Stopped and Manual, there you go. The activation files are on disk and Activation Manager reads them directly, so it tells you Available. View Studio ...

3 weeks ago
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RE: PowerFlex 525 16#0116 electronic keying mismatch after drive swap

Yes, that's the whole of it. In the tree, open the drive, Module Properties, General tab, Change next to Module Definition. Electronic Keying will be ...

3 weeks ago
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