Alarm — high severityMUDAT (data transfer system)

B7100009 — Error in MUDAT (ROTSOT -9) — rotation-to-stationary transfer error

Canon Medical (Toshiba) CT error code, reported by the MUDAT (Multi-Data Transmitting System) — optical data-transfer link.

What B7100009 means

On Aquilion RX and Aquilion ONE and Aquilion S16 and Aquilion 16 and Asteion Super4 CT systems, status code B7100009 indicates: Error in MUDAT (ROTSOT -9) — rotation-to-stationary transfer error. The code originates in the MUDAT (data transfer system) section of the MUDAT (Multi-Data Transmitting System) — optical data-transfer link. Severity level A1 (Alarm — high severity).

Reported action: Do not assume the optics: the rotation-to-stationary error table also covers OPCONTA and GCIFA FIFO empty/full conditions, which are board-internal. Read the GCIFA and OPCONTA fault LEDs and identify the error type in the table before touching hardware, then run the OPCONTA test and GCIFA test (each loops test data back inside its own board) and only then the ROTSOT test for the optical path..

Toshiba / Canon Medical CT systems using the MUDAT optical link (Aquilion RX, Aquilion ONE, Aquilion S16, Aquilion 16 and Asteion Super4). On the rotation-to-stationary direction the manual's error catalogue includes FIFO read/write and overflow faults on both the OPCONTA and the GCIFA, alongside the pure transmission errors — so a ROTSOT code does not always mean the optical path itself is bad.

Full troubleshooting for B7100009

The complete diagnosis, cause tree, and step-by-step remedy for the MUDAT (data transfer system) subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.

Open the Activion16 service manual

Related MUDAT (data transfer system) codes

B7100000The data transfer system in the gantry is abnormal (MUDAT)B7100001Error in MUDAT (ROTSOT -1) — rotation-to-stationary transfer errorB7100002Error in MUDAT (ROTSOT -2) — fatal rotation-to-stationary transfer errorB7100003Error in MUDAT (ROTSOT -3) — rotation-to-stationary transfer errorB7100004Error in switching channels in MUDAT (channel-switching failure)B7100005Error in MUDAT (ROTSOT -5) — rotation-to-stationary transfer errorB7100006Error in MUDAT — generic gantry optical data-transfer faultB7100007Error in MUDAT (ROTSOT -7) — rotation-to-stationary transfer error

Related service procedures

Run the console malfunction-diagnosis program (hwtest)Console (Diagnostics)Run the independent MHR PWB test (diagnostics) from the RTM terminalConsole (Diagnostics)Remove the host PC unit (PX74-07959 GR-1/GR-2)Console (Operation)Remove the host PC unit (PX74-08766 GR-1/GR-2)Console (Operation)Remove and install an RDD disk/power-supply unit (Rorke Data)Console (Recon)Remove and install an RDD fan unit (Rorke Data)Console (Recon)
Discuss B7100009 with other field engineers in the FSELIB forum

Source: Toshiba/Canon CT service error message table (errmsg.eng); Aquilion 16 service manual, MUDAT / IF-unit chapter (2D201-059E). Reference information re-authored by FSELIB — not a copy of the OEM manual.