Table A-1 Address Space Of The Dq 16X24Vdc/0.5A Ha - Siemens SIMATIC ET 200SP HA Equipment Manual

Address space
The following figure shows the mapping of the address space of the DQ 16x24VDC/0.5A HA.
Table A-1 Address space of the DQ 16x24VDC/0.5A HA
IB x + AB x + 7
0 - QDI7
1 - QDI15
- 0 DQ7
- 1 DQ15
Evaluate value status
There is a bit value status for each digital output 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 output without error. The
value status is set to "bad" in the following cases:
• The digital value cannot be output due to an error.
• The digital channel is deactivated.
DQ 16x24VDC/0.5A
Equipment Manual, 10/2021, A5E39265993-AD
6 5
QDI6 QDI5
QDI14 QDI13
DQ6 DQ5
DQ14 DQ13
Parameters, diagnostics messages and address space
4 3
QDI4 QDI3
QDI12 QDI11
DQ4 DQ3
DQ12 DQ11
A.5 Address space
2 1
QDI2 QDI1
QDI10 QDI9
DQ2 DQ1
DQ10 DQ9
0
QDI0
QDI8
DQ0
DQ8
43