Retrieve and decode the XC PWB error log (direct RS-232C read + system-software XL30 console log)
The XC PWB (XCS1 or XCS2) keeps its own error-information log in backup memory — 47 entries on the XCS1 PWB, 64 entries on the XCS2 PWB — independent of the system's own hardware error-log function. Normally the system's hardware error-log function is enough, but some error statuses are better diagnosed by reading the XC memory log directly. This page covers the two ways to retrieve that log and h
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| PC with RS-232C port (9-pin D-sub connector) | n/a in source | |
| "term.com" (DOS) or Windows Terminal | n/a in source | |
| Maintenance cable (for use with GTS) | n/a in source | |
| XCS PWB toggle switch SW4 | n/a in source |
Safety
Hazard: Connecting the maintenance cable directly to the XCS PWB (CNN3, in the rotation section) while the gantry remains powered ON
Consequence: a person or the cable can be caught in the rotation section — entanglement/crushing injury — because power stays ON while the maintenance cable is connected to the rotation section
Avoidance: be extremely careful to avoid anyone or the cable being caught in the rotation section before and during this connection (source prints this as a CAUTION; reclassified WARNING here per ANSI Z535 severity — rotation-section entanglement is treated as a potential-serious-injury hazard elsewhere on this platform, e.g. the slip-ring troubleshooting atom)
Hazard: Entering any character other than the documented P-read command (e.g. PD400) at the XCS terminal prompt
Consequence: the source states a memory-WRITE command also exists at this prompt; an unintended character could overwrite XC backup memory, including the stored error log itself
Avoidance: enter only the documented P command; do not experiment with other characters at the terminal prompt
Full step-by-step for Retrieve and decode the XC PWB error log (direct RS-232C read + system-software XL30 console log)
All 11 steps are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated X-ray Generator/HV guides
Source: 2D201-113EN*J §1.11.6 XC error log reference procedures (§1.11.6.1 Outline, §1.11.6.2 XCS PWB/GCIF PWB direct RS-232C read, §1.11.6.3 system-software XL30 console log), pp.112-122. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.