A.6
Address space
Abbreviations
• "IB" stands for input byte, that is, the module start address in the input area
• "DI" stands for digital input
• "QDIn" stands for the value status (QI) of digital input n
Address space
The following figure shows the mapping of the address space of the DI 16×NAMUR HA.
Table A-1
Address space of the I/O module DI 16xNAMUR
IB x +
7
6
5
4
3
2
1
0
0
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
1
DI15
DI14
DI13
DI12
DI11
DI10
DI9
DI8
2
QDI7
QDI6
QDI5
QDI4
QDI3
QDI2
QDI1
QDI0
3
QDI15
QDI14
QDI13
QDI12
QDI11
QDI10
QDI9
QDI8
Evaluating value status
There is a bit value status (QI) for each digital input in the input address space.
Irrespective of the diagnostics enables, each value status (each QI bit) provides information on
the validity of the corresponding process value.
• Value status = 1: Process value okay, "good"
• Value status = 0: Process value not okay, "bad"
Basically, the value status is set to "good" if the digital value can be detected without error. The
value status is set to "bad" in the following cases:
• The digital value cannot be detected due to an error.
• The digital input is disabled.
• The digital channel is configured as a NC channel
The validity of the signal must be checked on the NO channel.
Drivers, parameters, diagnostics messages and address space
A.6 Address space
DI 16xNAMUR HA
50
Equipment Manual, 08/2019, A5E39293880-AD
Summary of Contents for 6DL1131-6TH00-0PH1
Page 6: ...Security information DI 16xNAMUR HA 6 Equipment Manual 08 2019 A5E39293880 AD ...
Page 8: ...Preface DI 16xNAMUR HA 8 Equipment Manual 08 2019 A5E39293880 AD ...
Page 10: ...2D Matrix code QR code EAN code DI 16xNAMUR HA 10 Equipment Manual 08 2019 A5E39293880 AD ...
Page 30: ...Parameters 6 5 Flutter monitoring DI 16xNAMUR HA 30 Equipment Manual 08 2019 A5E39293880 AD ...