ControlCare Field Controller: Commissioning and Configuration
5 Configuring the Field Controller
Hauser
39
5.3.7
Multiple Discrete Input block
The Multiple Discrete Input block converts up to eight electrical input signals of low or high value
into
OUT_Dx
values of 0 or 1. It can be used together with the SFC411, SFC415, SFC420,
SFC432, SFC435 and SFC438 discrete input and discrete input/output modules. If signal
characterization is required, Discrete Input blocks must be used.
Fig. 5-6 Schematic diagram of Multiple Discrete Input block
Procedure
1 In the fieldbus view, right click on the Multiple Discrete Input block
Device Tag-MDI-n
and
select
Off Line Characterization
. The Characterization dialog opens.
– Press the
ALL
button in the toolbar to display all parameters
2 Expand the
MODE_BLK
node and set the Target Mode to Auto
–
Select the
Target
node then click the
Edit
button
–
Select
Auto
from the drop-down menu, click
End Edit
to confirm the selection
–
Click
Close
to leave the dialog.
3 Set
CHANNEL
to the input connected to the block as defiined in Section 5.3.1
–
Select
CHANNEL
, then click the
Edit
button
–
Enter the CHANNEL value (Rack+Slot+Group+
9
)
–
Click on
End Edit
Properties
The MDI block converts the input signals as into OUT_Dx = "0" or "1" as shown in Table 5-3.
Tab. 5-3: OUT_Dx value as a function of input signal for discrete input modules
OUT_D1
OUT_D2
OUT_D3
OUT_D4
OUT_D5
OUT_D6
OUT_D7
OUT_D8
MODE
CHANNEL
INPUT
SNAPSHOT OF
HC TRANSDUCER
BLOCK
OUTPUTS
From modules
SFC411
SFC415
SFC420
SFC432
SFC435
SFC438
I/O points
DI 0 to DI 7
together
RRSG
9
OUT_Dx Value
SFC411
SFC415
SFC420
SFC432, SFC435
SFC438
ON state level (True)
OUT_Dx
= 1
18 – 30 VDC
0 – 5 VDC,
< 200
Ω
Switch latched
15 - 30 VDC
OFF state level (False)
OUT_Dx
= 0
0 – 5 VDC
20 – 30 VDC,
> 10 k
Ω
Switches unlatched
0 - 5 VDC