Alarm — high severityMUDAT (data transfer system)

B7100002 — Error in MUDAT (ROTSOT -2) — fatal rotation-to-stationary transfer error

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

What B7100002 means

On Aquilion RX / V4-62R004 and V3.20R003 and Aquilion ONE / V4.2 and Aquilion S16 and Asteion Super4 and Aquilion 16 CT systems, status code B7100002 indicates: Error in MUDAT (ROTSOT -2) — fatal 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: The manual clears this class of fault automatically after 2 s of normal transfer, or from the console — but a fatal ROTSOT error that returns is a link fault, not a nuisance message. Run the ROTSOT test to confirm the rotation-to-stationary path, then the OPCONTA and GCIFA tests to isolate the board, reading the GCIFA and OPCONTA fault LEDs against the data-transfer error table as you go..

Reported on Aquilion 16, Aquilion RX/V4-62R004, Aquilion ONE/V4.2, Aquilion S16, Asteion Super4 and V3.20R003. It comes from the 9:Device MUDAT table, where the OEM text reads "Error in MUDAT (ROTSOT -2)." ROTSOT is the manual's term for transmission from the rotation section to the stationary section. In the manual's data-transfer error table, ROTSOT error type <2> is the fatal one: a control-data transfer error three times or more in succession, a sync error, or a FIFO Empty/Full error. The manual states it is latched by the KGTSM and the message is displayed on the console screen (display LED: GCIFA LED15).

Full troubleshooting for B7100002

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 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 errorB7100008Error in OPCONT2 (DAS CLOCK count) — DAS data-set count wrong, often a stopped DAS fan

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 B7100002 with other field engineers in the FSELIB forum

Source: Toshiba/Canon CT service error message table (errmsg.eng) — 9:Device MUDAT; Aquilion 16 service manual, MUDAT data-transfer error table (Table 3.2-2). Reference information re-authored by FSELIB — not a copy of the OEM manual.