User Manual

10 / 14 For internal use only
Siemens HMI CM2B6307en
Building Technologies Display and operating pages 12/15/2008
3.5 Digital inputs active
Conducts wiring test at the input.
Only one input is tested for this overview. The figure below for the HRC3.1
controller displays two active inputs: DI6 und DI15. The parameter HowManyAct
indicates how many inputs are currently active.
HRC3.1 HRC3.2
Parameter Description Can this
field be
edited?
All as Dec Displays active inputs as a decimal number.
A recalculation is possible here to determine which inputs are
currently active. The display is only there to determine changes.
The active outputs can be read in parameters Act 01-09 (or Act 01-
08 for HRC3.2) and Act 10-16.
Example:
Resolution in 16 bits.
Value = 16448
Bit0-Bit5 = off
Bit6 = on
Bit7-Bit13 = off
Bit14 = on
Bit15 = off
Î two inputs active (here window and door contracts are open).
No.
Act 01 – 09
(for the HRC3.1)
Act 01 – 08
(for the HRC3.2)
Display of an active digital input (DI) in a range of DI 01 – DI 09.
Caution:
Only the last active input is displayed when two inputs are active in
the range DI 01 – DI 09. Which is why only one input is active for
testing purposes. This can be viewed in the parameter
HowManyAct.
On the HRC3.2, the parameters Act 01 – 08 mean that only 8
digital inputs exist.
No.
Act 10 – 16 Display of an active digital input (DI) in a range of DI 10 – DI 16. No.