Table 16-3: Reported Errors - Mallinckrodt NELLCOR NPB-4000 Service Manual

Section 16: MP-205 Service Manual; 044540A-0296
16.18.3 Waveforms
16-8
Error # Error Description
E011 RAM error occurred
(MP-205 stops normal
operation)
E012 ROM error occurred
(MP-205 stops normal
operation)
E013 Last message sent by host
had a checksum error
(last message or command
was discarded)
E014 Write not permitted or
command not allowed
(command discarded, normal
operation continues)
E015 Module received a command
with a value out of range
(command discarded, normal
operation continues)
E016 Calibration failed
(MP-205 continues with
normal operation)
E017 Calibration already in
progress
(MP-205 continues with
normal operation)
E018 Calibration request denied
(MP-205 continues with
normal operation)
E019 Communication syntax error
on command sent by host
(command discarded; normal
operation continues)
E0210 Excessive sensor current was
detected (MP-205 stops
normal operation and
continuously sends this error
message)
Figure 16-1 through Figure 16-5 are typical waveforms as measured at various
test points (labeled TP) on the oximetry module. These waveforms are
valuable in tracing signals and locating faults. The user must use a Nellcor
SRC-2 pulse oximeter tester. Contact Mallinckrodt Technical Services
Department if you have difficulty replicating these waveform examples.

Table 16-3: Reported Errors

Host should not continue operation
with the MP-205.
Host should not continue operation
with the MP-205.
Serial line may be defective. Check
for possible noise on the serial line
interface. Verify correctness of
checksum calculation. Resend last
message to the MP-205. If error
persists, MP-205 may be defective.
Check command description for valid
values. Resend command with
correct value.
Check command description for valid
values. Resend command with
correct value.
Nonfatal error; host design decides
what action to take.
Continue processing.
Continue processing.
Check command description for
correct syntax. Resend command
with correct value.
Notify user to check and/or replace
the sensor or cable. Reset or cycle
power to the MP-205. Retry
saturation measurement with patient.
Check for excessive noise on +5 volt
digital supply. If error persists,
MP-205 may not be functioning
properly.
Recommended Action