LumaSense Technologies INNOVA 1309 - Manual (Page 31)

Chapter 3
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BE1285-15 1309 Multipoint Sampler LumaSense Technologies A/S
Page 31 of 42
3.7.4 The Warning? Interface Job
This job reads-out an 8-bit byte (the Warning Flags) which gives infor-
mation about error conditions which affect the efficient operation of the
1309. The 1309 is still able to operate, but the error should be rectified
as soon as possible. The Warning Flag byte is shown in Table 3.4.
Table 3.4 The 1309’s Warning Flags byte
WARNING FLAGS
Bit no. Dec. Value Flag Description
1 1 Reset Done Flag
2 2 Temperature Flag
3 4 Power Fail Flag
4 8 Not used
5 16 Not used
6 32 Not used
7 64 Not used
8 128 Not used
Warning Flags are set when either the 1309’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 Warning? job can then
give more information about the cause of the error condition.
Example:
Warning? Outputs the Warning Flags from the
1309. A “1” indicates that the flag is
set; a “0” indicates the flag is not
set.
The conditions which cause the Warning Flags to be set, and the appro-
priate action to be taken, are dealt with in turn below.
Reset Done Flag
Indicates that the 1309 has completed a reset, following either the Re-
set_System interface job (
section 3.6.2 ) or switching on the 1309. This
flag is reset when the Warning Flags are read-out from the 1309.
Temperature Flag
Is set when the internal temperature of the 1309 is outside the range
+2°C to +60°C. The 1309 must not be used until the internal tempera-
ture is within the normal operating limits of +5°C to +40°C. This flag is
reset when the internal temperature is again within the normal operat-
ing limits, or by resetting the 1309, or switching the 1309 off and the
on.