Digital Inputs
Definition
An IO module has six digital inputs. The digital inputs assigned to a predefined application are pre-configured and cannot be modified.
The remaining available inputs can be configured separately using the EcoStruxure Power Commission software.
Digital Input Types
There are two types of digital inputs:
-
Normal digital inputs, used to record the state of a normally open or normally closed external contact.
-
Pulse digital inputs, used to count pulses delivered by a metering device.
Each digital input can be configured using the EcoStruxure Power Commission software.
Normal Digital Input Parameters
The following parameters can be set with the EcoStruxure Power Commission software. The input signal type must be set to normal.
|
Description |
Setting Range |
Factory Settings |
|---|---|---|
|
Input signal type |
|
Normal |
|
Input contact type |
|
NO |
|
Counter threshold |
1–4294967294 |
5000 |
Digital Input Contact Type
The contact type of the normal digital inputs available for user-defined applications can be configured using the EcoStruxure Power Commission software as:
-
Normally open contact (NO)
-
Normally close contact (NC)
Normal Digital Input Counters
A counter is linked to each normal digital input. The counter is incremented on each rising edge of the linked input.
The digital input counters have the following properties:
-
The counters are saved in non-volatile memory to prevent data loss in case of power loss.
-
The counters can be reset from the IFE or EIFE webpages.
-
The counter stops counting after reaching 4294967294.
-
A threshold is associated to each counter. The counter threshold can be of any value ranging from 1 to 4294967294. The factory setting is 5000.
-
An alarm is generated when a counter reaches the threshold.
-
A digital output can be assigned to any threshold overrun on input counter.
Digital Input Forcing
For maintenance reasons, it is possible to force the state of the digital inputs.
This action can be performed with:
-
FDM121 display
-
EcoStruxure Power Commission software
Digital Input Events
The following events are generated by the digital inputs. For more information on IO module events, refer to Events and Alarms.
|
Code IO1 |
Code IO2 |
Description |
Type |
Priority |
Reset |
|---|---|---|---|---|---|
|
1555 (0x0613) |
1811 (0x0713) |
Input 1 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1556 (0x0614) |
1812 (0x0714) |
Input 2 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1557 (0x0615) |
1813 (0x0715) |
Input 3 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1558 (0x0616) |
1814 (0x0716) |
Input 4 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1559 (0x0617) |
1815 (0x0717) |
Input 5 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1560 (0x0618) |
1816 (0x0718) |
Input 6 rising edge (NO contact) or falling edge (NC contact) |
Event |
NA |
NA |
|
1561 (0x0619) |
1817 (0x0719) |
Threshold overrun on input 1 counter |
Alarm |
Medium |
Manual or remote |
|
1562 (0x061A) |
1818 (0x071A) |
Threshold overrun on input 2 counter |
Alarm |
Medium |
Manual or remote |
|
1563 (0x061B) |
1819 (0x071B) |
Threshold overrun on input 3 counter |
Alarm |
Medium |
Manual or remote |
|
1564 (0x061C) |
1820 (0x071C) |
Threshold overrun on input 4 counter |
Alarm |
Medium |
Manual or remote |
|
1565 (0x061D) |
1821 (0x071D) |
Threshold overrun on input 5 counter |
Alarm |
Medium |
Manual or remote |
|
1566 (0x061E) |
1822 (0x071E) |
Threshold overrun on input 6 counter |
Alarm |
Medium |
Manual or remote |
|
1570 (0x0622) |
1826 (0x0722) |
Input 1 not forced or forced change |
Event |
NA |
NA |
|
1571 (0x0623) |
1827 (0x0723) |
Input 2 not forced or forced change |
Event |
NA |
NA |
|
1572 (0x0624) |
1828 (0x0724) |
Input 3 not forced or forced change |
Event |
NA |
NA |
|
1573 (0x0625) |
1829 (0x0725) |
Input 4 not forced or forced change |
Event |
NA |
NA |
|
1574 (0x0626) |
1830 (0x0726) |
Input 5 not forced or forced change |
Event |
NA |
NA |
|
1575 (0x0627) |
1831 (0x0727) |
Input 6 not forced or forced change |
Event |
NA |
NA |
Pulse Input
The maximum number of allowed user-defined pulse inputs are six, with one or two IO modules. All the inputs can be configured as a pulse input using the EcoStruxure Power Commission software. Also, the pulse rate, pulse polarity, and the pulse unit can be configured using the EcoStruxure Power Commission software. A pulse counter is activated when the corresponding digital input of IO module 1 or IO module 2 is configured as a pulse input.
For example, if I2 on IO module 1 is set as a pulse input, I2 on IO module 2 cannot be set as a pulse input. If I3 on IO module 2 is set as a pulse input, I3 on IO module 1 cannot be set as a pulse input.
The minimum pulse width is 40 ms.
Pulse Digital Input Parameters
The following parameters can be set with the EcoStruxure Power Commission software. The input signal type must be set to pulse.
|
Description |
Setting Range |
Factory Settings |
|---|---|---|
|
Input signal type |
|
Normal |
|
Pulse polarity |
|
Low to high |
|
Pulse unit |
|
Wh |
|
Pulse weight |
0 to 16777215 |
1 |
The pulse weight must be calculated according to the characteristics of the pulses delivered by the meter.
Examples:
-
If each pulse delivered by an active energy meter corresponds to 10 KWh, and the pulse unit is set to Wh, the pulse weight must be set to 10,000 (Wh).
-
If each pulse delivered by a volume meter corresponds to 125 liters, and the pulse unit is set to m3, the pulse weight must be set to 0.125 m3.
-
If each pulse delivered by a volume meter corresponds to 1 gallon, and the pulse unit is set to m3, the pulse weight must be set to 0.003785 m3.