Alarm — high severityMUDAT (data transfer system)

B7100004 — Error in switching channels in MUDAT (channel-switching failure)

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

What B7100004 means

On Aquilion RX and Aquilion ONE and Aquilion S16 and Aquilion 16 and Asteion Super4 CT systems, status code B7100004 indicates: Error in switching channels in MUDAT (channel-switching failure). 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: Check both halves of the mechanism, because channel switching depends on rotation position as well as on the link: confirm that gantry position data is reaching the OPCONTA from the KGTSM through the GCIFA, then read the GCIFA and OPCONTA fault LEDs against the data-transfer error table, which carries a dedicated Channel Error type covering channels 1 to 10. Finish with the ROTSOT test to verify all 10 channels from the rotation section..

Toshiba / Canon Medical CT systems using the MUDAT optical link (Aquilion RX, Aquilion ONE, Aquilion S16, Aquilion 16 and Asteion Super4). During scanning the OPCONTA transfers 10 channels of serial data to the MUDAT while switching the channels sequentially in step with gantry rotation, using the gantry position data the KGTSM sends to the OPCONTA via the GCIFA. Channel switching runs only while scanning is performed, so this fault is tied to acquisition.

Full troubleshooting for B7100004

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 errorB7100005Error 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 B7100004 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.