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carlh
@carlh
New Member
Joined: Dec 20, 2024
Last seen: Sep 19, 2026
Topics: 4 / Replies: 16
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RE: Ignition can't reach a 1756-L72 on VLAN 20 from VLAN 10, IT says routing is fine

It's ARPing for an address on another subnet because it hasn't got a gateway. Same thing on our palletizer PLC. Studio 5000, controller organizer, rig...

8 minutes ago
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RE: Light curtain muting trips on every second pallet on the exit conveyor, mute lamp flickers

Moved the sensors in to about 24in as a trial, old holes marked, area roped off and nobody on the line. Ran ten short pallets through, lamp stayed on,...

3 hours ago
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RE: 1756-EN2TR DLR ring ran broken for six weeks before the cell went down

Hex box ticked, MSG runs, and Network Status came back 0 with both cables fixed. Pulled one on purpose Friday with the line stopped, it went to 1 in a...

3 hours ago
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RE: MicroLogix 1400 CTU counts two or three per bag from a photoeye, count 15 percent high

Not bouncing, seeing two things. The heat seal on those woven bags is glossy. Eye sees bag, then the seal reflects and it drops out for a few ms, then...

5 hours ago
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RE: Upload from ControlLogix has no rung comments or tag descriptions

There's your comments. Don't download the 2023 file, compare it against the upload.

7 hours ago
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RE: Light curtain muting trips on every second pallet on the exit conveyor, mute lamp flickers

Sensors are about 36in apart, one either side of the curtain. New pallet load is about 40in long, two cases stacked with a gap between them at the bot...

8 hours ago
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RE: 1756-EN2TR DLR ring ran broken for six weeks before the cell went down

Got the AOI in. The MSG inside it errors, 16#0005 path destination unknown. Message type CIP Generic, class 47, instance 1, attribute 2, path 1,2 for ...

9 hours ago
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RE: 12 zone accumulation conveyor in a CompactLogix, twelve copies of the same zone rungs

What mikko said, I'll fill in the shape. UDT Zone: Eye, Run, Release_Delay, Next_Clear, a timer. Zones[12]. AOI Zone_Ctrl with the rule in it, run if ...

14 hours ago
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RE: 1756-DNB error 78 on node 5 after replacing a DeviceNet valve manifold

Dials under the cover say 63. Old one, dug out of the scrap bin, says 05. Should have looked under the lid first. Pretty sure I just set it to 05 and ...

2 days ago
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RE: 1756-EN2TR DLR ring ran broken for six weeks before the cell went down

Fair. Not sure where I'd have looked though. Nothing on the HMI, nothing in the controller faults, no fault on the module in the tree. Only the Networ...

3 days ago
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RE: SLC 5/04 limit switch on a vibrating frame runs the compact step twice

Seen it on a bale press. Before the code, how loose is the switch bracket? Grab it and shake. And is it a roller arm or a plunger?

3 days ago
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RE: Point I/O modules past slot 8 fault intermittently, 1734-AENTR itself is fine

Seen it on a sorter with 18 modules. The AENTR pushes about 1A down the POINTBus for the modules' own electronics and 20 modules with output cards eat...

3 days ago
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RE: MicroLogix 1400 CTU counts two or three per bag from a photoeye, count 15 percent high

Where's the eye looking. Square across the bag, or down at it? And is it seeing the heat seal?

3 days ago
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