5.1.2 Digital inputs
MPXone manages up to 5 physical digital inputs and 1 virtual digital input. See “Installation”.
To associate a physical or virtual input to each available function, set parameters DIA, DIb, ... DIr
parameters to the value relating to the physical or virtual digital input. See the parameter table.
Digital input functions
Contact
Digital input assignmentfor: Par. Open Closed
immediate external alarm DIA Active Not active
delayed external alarm DIb Active Not active
enable defrost DIc Not enabled Enabled
start defrost DId Not active Active
door switch with stopping control DIE Door open Door closed
remote ON/OFF DIF OFF ON
curtain switch/light DIG Day status Night status
start/stop continuous cycle DIH Not active Active
digital input monitoring DII Active Not active
timed digital input DIL Active Not active
switch to Standby status DIM Active Not active
switch to Clean status DIn Active Not active
change working set DIo Set 1 Set 2
door switch without stopping control DIp Door open Door closed
defrost corresponding to digital input status DIr Not active Active
If the opposite logic to the default setting is required, or to correct a wiring error, the logic of the
functions associated with the digital inputs using parameters rIA, rIb, ... rIr can be reversed.
Par. Description Def. UOM Min Max
rIA, rIb, ... rIr Reverse digital input logic 0 - 0 1
Note: reversing the logic has no effect on the virtual DI
The virtual digital input is a function by which the status of a digital input is broadcast via LAN (RS485)
from Master to Slave. This is useful, for example, when using a switch to change from day to night status
and vice-versa without extra wiring from the Master to the Slaves. The virtual digital input can be set by
the supervisor or by the Master, according to the setting of parameter A9 (set only on the Master).
Code Description Def Min Max UOM User
User
terminal
A9
Select digital input broadcast from Master to Slaves (only on
Master)
0 = from supervisor 3 = Digital input 3 (ID3)
1 = Digital input 1 (ID1) 4 = Digital input 4 (ID4)
2 = Digital input 2 (ID2) 5 = Digital input 5 (ID5)
0 0 5 - S NO
Setting parameters DIA, DIb, ... DIr to -1 allows the virtual digital input to be selected on the Slave as an
input. If needed, different functions can be configured on the Slaves, meaning when the status of the
contact on the Master changes, different functions are activated on the Slaves.
Par. Description Def. UOM Min Max
DIA, DIb, ... DIr
Assign digital input function
...
- 1: serialdigitalinput
0 - -1 5
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