Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026

how to debug Rigol DG1022Z SCPI execution error on ARB sequence download

Q: How long does how to debug rigol dg1022z scpi execution error on arb sequence download typically take on Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026?

For most Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026 cells, 5 to 30 minutes including verification. Large fleet retrofits, anything touching maintenance-token rotation or safety-PLC cutover, or cross-cell parameter migrations can stretch to half a shift because you have to wait for production-window clearance, OEM re-licensing, or coordinated maintenance windows.

Q: Is there a rollback path?

Yes for most Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026 changes. Snapshot the firmware revision, photograph the parameter set, export the alarm history, and write down the maintenance token before any change. A few operations are one-way (cleared fault history past the OEM retention window, irreversible safety-PLC fuse, permanently revoked teach pendants). Check the in-controller maintenance help for the specific operation before you commit.

Q: Will this affect other cells in the Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026 fleet?

Often yes. Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026 fleets share safety-PLC policies, OEM service-contract quotas, operator rosters, and fieldbus permissions across the whole plant (one maintenance-token grant holds permissions for many cells, one safety-PLC policy covers all stations, one service-contract tier covers all members). Use the Bench Instrument Error Codes — Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters — 2026 OEM alarm history and the fieldbus drop list to enumerate dependencies before changing a shared component.

By Sai Kiran Pandrala · Last verified: 2026-06-01 · Source: controls-community forums (r/PLC, r/Robotics, r/CNC, r/Fanuc, r/KUKA, r/Cognex, r/labview), OEM service bulletins and changelogs, OEM service manuals, in-controller diagnostic help

At a glance

Controller	Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026
Category	Industrial Error Codes
Guide type	Procedure
Skill level	Beginner to intermediate field service tech
Time	5 - 30 minutes including verification

I was called out at 2am because Line 4 had a CNC throwing a how to debug Rigol DG1022Z SCPI execution error on ARB sequence download alarm on Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 and the swing-shift operator could not clear it - these are the steps most field service techs walk in 2026 when this exact alarm hits during a production run. My muscle-memory shortcut is to stop, photograph the alarm history screen, capture the controller hour-meter, and work the fault in the order below rather than chasing the symptom. None of these steps require pinging the OEM hotline first unless the cell is under active warranty.

What how to debug rigol dg1022z scpi execution error on arb sequence download actually involves on Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026

On Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 the kit I reach for first includes Keysight BenchVue Function Generator app, open/short/load Kelvin fixture for LCR self-cal, Rigol Ultra Sigma + Ultra Station. Each of these surfaces a different layer of the fault - keep at least the first one in your fault-history notebook so the next time this happens you do not start cold.

For verification on Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026, the methods that survive contact with a real second-shift production workload are query SYST:ERR? after each SCPI write to detect parse / execution faults and feed counter a 10MHz lab standard and check displayed reading against 10.000000 MHz. Anything less than that and you are shipping on vibes.

Authoritative sources for Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 that I cross-reference before committing to a fix: keysight.com/find/33500B, bkprecision.com/products/component-testers, helpfiles.keysight.com (SCPI command reference). OEM marketing brochures and trade-press writeups are signal, not ground truth.

The rest of this page is the structured fix path. Start with diagnose, then remediation, then the automation options so you do not have to do this by hand the next time it surfaces. Verify and safety sections at the end are the discipline that keeps the fix from regressing the next time you open the cabinet.

Diagnose first, fix second

Seventh: run the dedicated diagnostic option for whichever subsystem the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 alarm points at. Drive suspected? Force a servo discharge and re-energize from the drive panel, then check the drive status LEDs for the green ready signal and the last-fault timestamp. Encoder suspected? Power down fully (lockout-tagout), check the encoder battery voltage at the back of the controller, re-home the axis on power-up. Cable suspected? Pin-check the encoder cable continuity end-to-end with a meter (EtherCAT or Profinet drop = use a cable tester, look for an LED link light at both ends). Each of these surfaces config that the controller silently inherits from a previous session, and 90 percent of "this used to work yesterday" reports trace to a stale parameter or a vibrated-loose connector. Capture the result of each step in your notes alongside the timestamp so you do not redo the discovery the next time.

Sixth: pin down the timing and reliability envelope on the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cell under real working conditions. Run a long-duration sanity test by executing the failing program 10 times over 15 minutes, logging the timestamp and the result (cycle complete / alarm code / which axis or station faulted) per attempt to a notes file. Watch for the breakpoint where the cycle success rate dips below 80 percent - that is your real signal that something is wrong, not the one-off alarm that prompted the callout. If you are on a marginal supply (low ambient temp, brownout, dirty 3-phase, contaminated coolant), run the same test on a known-good supply or a sister cell before assuming the controller is the problem. Capture the breakpoint in your personal notes next to the firmware version, the parameter set, and the controller serial number - the next time this happens to a teammate, the notes are gold.

Fifth: replay the failing run against a second axis or a second controller on the same Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cell. The point is to isolate "this drive" from "this controller" from "the whole cell." If a teammate identical sister-machine works but yours does not, the failure is local to the parameter set or the encoder cable. If the same program faults on every controller in the same cell, you have a cell-wide config change or an OEM-side firmware quirk. Pin the controller firmware version explicitly while you do this: the controller About panel, the firmware hash in the parameter dump, or the system version returned by a SCPI *IDN? query. The version pin is what isolates "the OEM update broke us" from "this machine is on an older firmware than the rest of the cell."

Field notes from real Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 callouts

Vendor portals like rigol.com/products/waveform-generators are a starting point for Electronics questions, never the final word. The integrator forums are where the ugly edge cases actually get diagnosed. The Electronics side of Bench Instrument Error Codes evolves slowly on paper and fast in firmware, a vendor manual from two years ago is almost guaranteed to miss the new alarm codes. Last week on a graveyard shift I chased a phantom Bench Instrument Error Codes alarm for two hours before remembering 10MHz GPS-disciplined reference for counter timebase check would have isolated the bad channel in five minutes.

Tools I actually reach for

For most Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 faults I start with Pendulum TimeView 3 analysis software, fall back to BK Precision PV891 control software, scope (Tek MSO46 / Rigol DS1054Z) on SYNC/OUT for waveform verification, Rigol Ultra Sigma + Ultra Station, 10MHz GPS-disciplined reference for counter timebase check when Pendulum TimeView 3 analysis software cannot surface the answer, and keep Keysight IO Libraries Connection Expert handy for the cases where neither answers. That ordering is not academic - it matches the layers of the fault as they tend to surface, so the cheapest signal lands first and the heavier tooling only comes out when the simpler answer does not hold up. My muscle-memory shortcut for this is to run the first tool while the alarm screen is still open, not after I have already cycled controller power.

Verification I run before I call it fixed

Before I mark a Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 fault resolved, the verification loop below is what I actually run. Each step proves a different layer is green, and the order matters - the cheaper checks gate the more expensive ones.

perform LCR open/short compensation before each measurement session

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

feed counter a 10MHz lab standard and check displayed reading against 10.000000 MHz

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

Keysight 33500B Utility > Self Test > All

Only when every line above runs clean do I close the loop and update my fault-history notebook with the timestamps.

Where I check first when the docs disagree

When two sources contradict each other on a Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 detail, the disambiguation order I lean on is stable. I usually check rigol.com/products/waveform-generators for the ground-truth view on this part of Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026. I usually check pendulum-instruments.com/support for the ground-truth view on this part of Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026. I usually check keysight.com/find/33500B for the ground-truth view on this part of Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026. OEM marketing brochures and trade-press writeups are signal, not ground truth, and I treat them as such until the references above either confirm or contradict the claim.

Solution-focused remediation path

Before any destructive step on a Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cell, slow down and stage rollback. Snapshot the current firmware revision, the current parameter set (PARAM PUNCH OUT, KUKA archive, Cognex job export), the current ladder and HMI screens, the current I/O mapping, and the current member-roster of teach pendants registered to the cell to a notes entry first. Capture the failing photo, the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 alarm history dump, and the timestamp window. Photograph the cell from two angles: the controller HMI showing the alarm, and the cabinet showing the drive status LEDs. Then do the destructive step (clear a parameter, swap a drive, remove a teach pendant, restore a backup) inside a maintenance mode or a sister cell first, never the production cell directly. Capture the firmware revision, the safety-PLC permissions, the connected-pendant list, the cell operator roster, and the relevant fieldbus log snapshot to your notes before the destructive step. Decision point: if the cell is under an OEM service contract, the cheapest correct path is almost always to open the OEM hotline in parallel with the rollback - the OEM service engineer can confirm whether an OEM-side firmware push is responsible while you are still staging the change, which avoids a needless parameter edit if the fix is in the next firmware revision.

For Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cells where duty-cycle limits or thermal envelopes are suspect, read the in-controller hints honestly. "Servo overcurrent" usually means you hit the peak current envelope of the drive during accel. "Motor overload" is the sustained-thermal signal on the motor winding. "Drive overheat" is the heatsink thermistor signal. Each is telling you the exact same thing in a Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026-specific dialect. Apply duty-cycle dwell for repeated-cycle programs (insert a 500ms dwell between high-load moves), reduce the rapid feedrate, and chunk a long cycle into smaller passes. Decision point: if you are hitting the thermal limit sustained rather than in bursts, the cell is undersized for the workpiece - upgrade the drive amperage rating or request a thermal margin review from the OEM with a written duty-cycle analysis; without it, dial back the throughput at the cell. Replay the failing program against a fresh test workpiece at half the feedrate to confirm the new safe envelope before pushing to the production cell.

If the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 symptom started after an overnight firmware update, a drive swap, or a parameter edit, treat firmware and parameter set as the prime suspect. Roll the controller back to the previous firmware if the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM supports rollback (most do via the maintenance bootloader). Restore the saved parameter set from your last known good backup (Fanuc all-parameter PUNCH OUT, KUKA archive, Cognex In-Sight job export) and rerun the program. If both rolled-back firmware and restored parameter set still fault with the same alarm and the same drive, you have a hardware-level or wiring issue. Decision point: if the rolled-back firmware still faults and the cell is under an OEM service contract, open the OEM hotline with the alarm history dump; on an out-of-warranty cell the path is the OEM forum or r/bench with a minimal reproduction. Save the working firmware revision to your notes so the next rollback is a one-line "pin to firmware X."

Automate this fix so you do not do it twice

Scrape Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller alarm history + fieldbus log via scheduled job

For the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026, cell faults usually surface as drive alarms, fieldbus dropouts, or vision-trigger misses before a full line stoppage. A weekly scheduled job that exports the last 7 days of these events to CSV gives you a paper trail to correlate with firmware updates, parameter edits, and OEM bulletins without staring at the HMI live. Register the task via cron on a plant-floor logger PC (Linux IPC), Windows Task Scheduler (schtasks /create /XML) on an engineering workstation, or a GitHub Actions schedule against a cell-controller API, then write the CSV to a plant file share or the fab MES for retention. Subscribe a simple dashboard (Grafana with a CSV source, Ignition with a tag history, the fab MES OEE report) to the same bucket so alarm events from every Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller converge on a single view without per-cell HMI clicking.

# Export the controller alarm history via the OEM API (if supported)
curl -X POST https://controller.plant.local/api/v1/alarm_history \ -H "Authorization: Bearer $CONTROLLER_TOKEN" \ -H "Accept: application/json" \ -d '{"start_date":"2026-05-25","end_date":"2026-06-01"}' \ -o bench-alarm-history.json
# Export the cycle history for the last 7 days
curl -G https://controller.plant.local/api/v1/cycles \ -H "Authorization: Bearer $CONTROLLER_TOKEN" \ --data-urlencode "oldest=$(date -d '7 days ago' +%s)" \ -o bench-cycles.json

Codify the firmware revision pin and rollback as a single notes entry

Once a stable firmware revision is identified for the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026, write the revision string, the build hash, and the parameter set state to a fault-history notebook entry with the date in the title. Reproducible rollback is then a single OEM utility load plus a parameter restore. Pin the parameter set state explicitly so an OEM-side default change does not silently shift behavior under you. Stage the notebook entry next to a checklist that lists the failing photo, the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 alarm history dump (if any), and the OEM case number; the second time the cell faults at 9 a.m. you do not want to be rediscovering which firmware revision was actually green.

# Fault-history notebook template (bench)
Date: 2026-06-01
Controller: bench
Working firmware: 30iB-Plus 02.20 (Build hash: a1b2c3d)
Cell: Line 4 Cell B
Machine serial: SN-bench-12345
Failing photo: ~/notes/bench-2026-06-01.jpg
OEM case: OEM-bench-12345
Rollback path: load previous firmware from OEM utility, master OFF, restore parameter archive, power up

Monitor + alert via Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM diagnostic reports, alarm history, and plant dashboard ingestion

For the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026, the most useful long-running telemetry is the OEM diagnostic reports + alarm history shipped to a plant dashboard (Grafana with a CSV source, Ignition with a tag history, the fab MES OEE per SEMI E10, a Notion database via the API) and graphed on a single view. Pair that with synthetic monitoring (a small script that triggers the failing cycle or runs the failing test sequence every 5 minutes from at least two cells) so a fleet-level regression lights up before teammates report it. Subscribe the on-call inbox or a private Teams channel to the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM service bulletin (Atom/RSS or vendor portal webhook) plus the OEM service-status handle so an open bulletin self-correlates with the synthetic failures.

# Tiny synthetic monitor - hit the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller health endpoint every 5 minutes
while true; do curl -s -o /dev/null -w "%{http_code} %{time_total} $(date -Iseconds)\n" \ -H "Authorization: Bearer $TOKEN" \ https://controller.plant.local/api/v1/me \ >> /var/log/bench-synth.log sleep 300
done

Common pitfalls and what to watch for

The deepest trap with Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cells is treating a recurring class of alarm as a one-off incident. A drive overheat or a vision-trigger miss burst gets papered over with a power-cycle or a parameter reset, the cell runs for two weeks, and the exact same signature returns because the root cause was never identified. Codify every case in a fault-history notebook per machine, save the working firmware revision (the About panel) in the same note, and write the exact parameter set, I/O mapping, and fieldbus drop list into a checklist. After any major firmware update on Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 review the parameter set and the I/O mapping explicitly, since OEMs silently change defaults or add new safety interlocks between major releases.

The second half of this pitfall is confirming the fix on a single cell when the cell is part of a fleet. If you and three teammates run the same Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller on the same production line, an OEM-side firmware push tends to bite a whole batch within the same shift. Verify on every cell that runs the failing recipe, log the result and the firmware revision per attempt, and only then declare the class closed.

Verify the fix worked

Reproduce the original faulting cycle against Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 on the same cell AND a sister cell with the same recipe. If the alarm or fault code still surfaces on any cell, you have not fixed it.
Watch for 24 to 48 hours via the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller alarm history + the fieldbus log + your fault-history notebook. Cached fault states and stale fieldbus link state mask slow-burn drift and intermittent fieldbus issues.
Smoke-test under realistic load: replay the cycle against a test workpiece for at least 30 minutes at your normal production feedrate, log success / alarm and the timestamp per attempt to a notes file.
Capture the new state in a fault-history notebook entry so the next time this happens you do not rediscover it. Note firmware revision + parameter set + I/O mapping + failing photo + verbatim alarm string + fix applied. Push to a plant-wide maintenance wiki if your plant uses one.
If the fix involved a maintenance-token rotation or a parameter set change, commit the new token to your password manager and photograph the parameter dump for archival.

Safety, rollback, blast radius

Test in a Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 maintenance mode or on a sister cell first before any change that touches the production cell. Snapshot the firmware revision, the parameter set, the I/O mapping, and the safety-PLC permissions before changing anything.
Apply the principle of least surprise when granting teach-pendant access or safety-PLC permissions. Review the operator roster against the people who actually need access - extra teach pendants are extra blast radius.
Use idempotent cycles where the Bench Instrument Error Codes, Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 controller supports it (the OEM cycle-id de-dupe, external id keys on MES records) so a re-run cycle does not double-count parts or duplicate scrap records.
Know your rollback path. Firmware rollback is a one-line OEM utility load; a maintenance-token rotation is reversible if you kept the old token in the password manager during cutover; a parameter set change is reversible only if you saved the previous archive.
For cell-wide or plant-wide changes, line up a maintenance window with production scheduling before pushing through the OEM utility.

FAQ

How long does how to debug rigol dg1022z scpi execution error on arb sequence download typically take on Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026?

For most Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 cells, 5 to 30 minutes including verification. Large fleet retrofits, anything touching maintenance-token rotation or safety-PLC cutover, or cross-cell parameter migrations can stretch to half a shift because you have to wait for production-window clearance, OEM re-licensing, or coordinated maintenance windows.

Is there a rollback path?

Yes for most Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 changes. Snapshot the firmware revision, photograph the parameter set, export the alarm history, and write down the maintenance token before any change. A few operations are one-way (cleared fault history past the OEM retention window, irreversible safety-PLC fuse, permanently revoked teach pendants). Check the in-controller maintenance help for the specific operation before you commit.

Will this affect other cells in the Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 fleet?

Often yes. Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 fleets share safety-PLC policies, OEM service-contract quotas, operator rosters, and fieldbus permissions across the whole plant (one maintenance-token grant holds permissions for many cells, one safety-PLC policy covers all stations, one service-contract tier covers all members). Use the Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM alarm history and the fieldbus drop list to enumerate dependencies before changing a shared component.

What if my firmware revision or parameter set does not match these steps?

OEM defaults move between releases. The steps in this page reflect mainstream defaults as of 2026-06-01 but the underlying recovery patterns do not change as fast. If a path differs on your firmware, fall back to the in-controller maintenance help, the Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM service bulletin history, or the OEM community forum - those almost always still work.

Where do I get OEM support if I am still stuck?

If you have a paid OEM service contract, open a case via the OEM hotline with: the exact verbatim alarm string, the failing photo, the cell or controller serial number, your maintenance-account email, the firmware revision, and your reproduction steps. The Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 OEM community forum and r/PLC are the no-cost public alternatives - search there first; 80 percent of common Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 alarms already have a working answer voted to the top.

References

OEM service manual for Bench Instrument Error Codes: Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 (official service bulletins, alarm code reference, safety case)
Controls-community forums (r/PLC, r/Robotics, r/CNC, r/Fanuc, r/KUKA, r/Cognex, r/labview, OEM community)
In-controller diagnostic help and the Bench Instrument Error Codes. Keysight 33500B, Rigol DG1022Z, BK 891 LCR, Pendulum Counters, 2026 firmware release notes
OEM service-status portals and OEM hotline post-mortem reports

Related guides worth a look while you sort this one out: