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eddieb
@eddieb
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Joined: Jun 20, 2025
Last seen: Sep 19, 2026
Topics: 5 / Replies: 11
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RE: Node-RED OPC UA client to S7-1500 fails with BadSecurityChecksFailed, None policy works

Licence is bought, and None works, so the server's up and serving. 4840 is the CPU's listening port and there's nothing in front of it. Buffer line f...

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

Is DB3 still exposed to OPC UA at all? Open the block and look at the accessible from HMI/OPC UA tick, on V17 it's on the block properties. If that ca...

5 hours ago
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RE: Ignition MQTT Engine shows no tags, broker sees every message from the gateway

Post one full topic and one payload exactly as mosquitto_sub prints them. And on 8.1 the Engine has a Namespaces page, is there anything under Custom ...

5 hours ago
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RE: CompactLogix periodic task overlap count climbing, PanelView sluggish

Watchdog 500ms, priority 5, ladder, about 30 rungs of flight tracking per lane, both lanes in T_Fast. So doubling the lanes doubled what's in a 5ms ta...

6 hours ago
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RE: DeviceNet 1756-DNB error 91 bus-off a few hours after conduit rework

Put a terminating plug on the last tee last night, metered 61 ohm at the scanner with power off. Power cycled and it has run 19 hours, longest since t...

6 hours ago
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RE: Ignition can't reach a 1756-L72 on VLAN 20 from VLAN 10, IT says routing is fine

Smallest test first. On the Ignition server, ping the EN2TR, and watch the PLC side while you do it. Can you get a SPAN port on VLAN 20, or a laptop w...

8 hours ago
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RE: DeviceNet 1756-DNB error 91 bus-off a few hours after conduit rework

Metered it with network power off at the scanner tap. 118 ohm. The old trunk had a terminator on the end, I remember the little plug. The new trunk ju...

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

How did you address the nodes in the flow, by string like ns=3;s="DB7".Weight or by numeric i= ids picked up from a browse? Post one bad one and one g...

16 hours ago
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RE: 1791ES-IB16 safety connection times out a few times a day since a new managed switch

Two days, no drops on either module. Safety engineer redid the stop time with the new CRTL, still inside the curtain distance, safety task re-signed, ...

5 days ago
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RE: 1791ES-IB16 safety connection times out a few times a day since a new managed switch

RPI back to 10 ms, timeout multiplier 2 to 3, downloaded with the safety engineer watching. CRTL field went up, I have the before and after in the val...

1 week ago
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RE: 1791ES-IB16 safety connection times out a few times a day since a new managed switch

Stratix 5700, replaced a plain 8 port unmanaged. IT ran the express setup and left the defaults, whatever those are. Same VLAN, same ports as the old ...

2 weeks ago
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