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BLCDN-8M12L-4AI-VI-4AI-VI
9 Mapping and diagnostics
9.1 I/O and Diagnostic Data mapping
INPUT
Diag.
BYTE
Bit 7
Bit 6
Bit 5
Bit 4
0
1
2
3
4
5
6
7
AI 0 LSB
AI 0 MSB
AI 1 LSB
AI 1 MSB
AI 2 LSB
AI 2 MSB
AI 3 LSB
AI 3 MSB
8
9
10
Module number reporting diagnostic data
Replace
N/A
Diag.
Reserved
station
active
Reserved
11
Reserved
12
Reserved
13
Reserved
14
Reserved
15
Reserved
16
Reserved
17
Reserved
Bit 3
Bit 2
Bit 1
Bit 0
Range
error
CH 0
Range
error
CH 1
Range
error
CH 2
Range
error
CH 3
Range
error
CH 4
Range
error
CH 5
Range
error
CH 6
Range
error
CH 7
* The scheduled diagnostic information changes every 125 ms between slot 1 and 2, if both slots send active diagnostics.
9.2 4AI-VI - Diagnostic messages
Edition • 2011-3-15
Diagnostic message
Range error CH x
13 / 32011
Meaning
The measurement range has been exceeded. The threshold is 1% of the positive measurement range
end value. In current mode, an underflow diagnosis is only invalid for the value range 4...20 mA.
Hans Turck GmbH & Co.KG ñ D-45472 Mülheim an der Ruhr ñ Witzlebenstraße 7 ñ Tel. 0208 4952-0 ñ Fax 0208 4952-264 ñ [email protected] ñ www.turck.com