Download User manual

BLCDN-4M12S-2AI2AO-VI
9 Mapping and diagnostics
9.1 I/O- and Diagnostic Data mapping
INPUT
BYTE
Bit 7
Ch 0
0
1
2
3
AI 0 LSB
AI 0 MSB
AI 1 LSB
AI 1 MSB
Bit 3
Bit 2
Bit 1
Diag.
4
5
Module number reporting diagnostic data
Replace
N/A
Diag.
Reserved
station
active
Hardware
Reserved
Failure
AI Ch 0
6
Overflow /
Underflow
Reserved
7
Hardware
Failure
Reserved
Overflow /
Underflow
Reserved
AI Ch 1
8
Hardware
Failure
Reserved
Overflow /
Underflow
Reserved
AO Ch 3
9
Hardware
Failure
Reserved
Overflow /
Underflow
Reserved
Wire Break Measuring
(4...20 mA Range
range only) Exceeded
Measuring
Range
Exceeded
Wire Break Measuring
(4...20 mA Range
range only) Exceeded
Measuring
Range
Exceeded
AO Ch 2
OUTPUT
BYTE
Bit 7
Bit 6
Bit 3
Bit 2
Ch 2
0
1
2
3
AO 0 LSB
AO 0 MSB
AO 1 LSB
AO 1 MSB
Ch 1
Ch 3
Bit 6
Bit 5
Bit 5
Bit 4
Bit 4
Bit 1
Bit 0
Bit 0
9.2 xAIxAO – Diagnostic messages
Edition • 2011-3-15
Diagnostic message
Measuring Range Exceeded CH x
Wire Break CH x
Overflow / Underflow CH x
Hardware Failure CH x
13 / 32011
Meaning
The generation of this diagnostic message depends on the parameterised measurement range.
A wire break diagnosis is only possible in the operation mode 4 to 20mA.
The generation of this diagnostic message depends on the parameterised measurement range.
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