LumaSense Technologies INNOVA 1303 - Manual (Page 46)

Chapter 3
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BE1085-14
1303 Multipoint Sampler and Doser LumaSense Technologies A/S
Page 46 of 60
3.9.5 The Error? Interface Job
This job reads-out an 8-bit byte (the Error Flags) which gives informa-
tion about errors which cause the 1303 to stop working. If any of these
errors exist, the 1303 is unable to function until the error is rectified.
The Error Flag byte is shown in Table 3.6.
Table 3.6 The 1303’s Error Flags byte
ERROR FLAGS
Bit no. Dec. Value Flag Description
1 1 ADC Flag
2 2 RAM Flag
3 4 PROM Flag
4 8 Sampling Channel Flag
5 16 Dosing-pressure Flag
6 32 Job Specification Error
7 64 Software Error Flag
8 128 Set-up Error Flag
Error Flags are set when either the 1303’s self-check procedures or the
Check_System interface job identify an error condition. This in turn
sets bit 6 of the Status Byte (generating a service request, if enabled)
to indicate that an error condition exists. The Error? job can then give
more information about the cause of the error condition.
Example:
Error?<LF> Outputs the Error Flags from the
1303. A “1” indicates that the flag is
set; a “0” indicates the flag is not
set.
The conditions which cause the Error Flags to be set are dealt with in
turn below.
ADC Flag
Is set when the ADC (analogue-digital converter) develops an error.
This results in a software-error, which automatically resets the 1303.
The flag is reset by reading-out the Error Flags, or by switching the
1303 off/on. If the error persists, have the 1303 serviced.