User's Guide ______________________________________________________________________
172 _________________________________________________________________ M210667EN-C
NOTE
The listed status codes do not cover all possible cases. Combinations are
possible if applicable. If, for example, code 1 and code 2 occur at the
same time, it will lead to code 3.
The byte shown in Table 31 below indicates the status of the LT31
measurement CPU LTC112 which is located inside the receiver
measurement unit LTM212.
Table 31 LT31 Receiver: Measurement CPU (Byte Number 38)
Code Explanation Comment
0 OK, normal
operation
1 Synchronization
error
Main receiver synchronization
signal not available.
2 Window receiver
saturated
Direct or indirect solar radiation.
4 Hardware
warning
Internal monitoring alarm signal
exceeded limit
8 Hardware error Examples:
EEPROM and/or temperature
sensor failure.
NOTE
The listed status codes do not cover all possible cases. Combinations are
possible if applicable. If, for example, code 1 and code 2 occur at the
same time, it will lead to code 3.
The byte shown in Table 32 below indicates the status of the optics
alignm
ent mechanism and the window heater unit located inside the
receiver measurement unit LTM212.
Table 32 LT31 Receiver: Miscellaneous (Byte Number 39)
Code Explanation Comment
0 OK, normal
operation
4 Window heater
error
Temperature difference between
window and enclosure temperature
below limit when heater is on.
8 Alignment
mechanism
No horizontal and/or vertical position
signal.
No movement.
NOTE
The listed status codes do not cover all possible cases. Combinations are
possible if applicable. If, for example, code 1 and code 2 occur at the
same time, it will lead to code 3.
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