DOCA0172EN-17

Digital Inputs (PAS600L, PAS600LWD, PAS800L)

Presentation

The two embedded digital inputs on Panel Server Universal PAS600L and Advanced PAS800L are used to monitor the state of an external contact or as a pulse counter.

When configured as a pulse counter, the falling edge of the pulse is counted. Modbus registers are refreshed every 60 seconds.

Availability

This function is available on Panel Server Universal PAS600L, PAS600LWD, and Advanced PAS800L.

Digital Input Types

There are two types of digital input:

  • Standard 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 WAGES (Water, Air, Gas, Electricity, Steam) metering device compliant with standard IEC 62052-11 (minimum pulse width of 30 ms). Pulse digital inputs support up to 16 pulses/second, as per the requirements of the standard.

Each digital input can be individually configured as either standard or pulse.

Pulse Digital Input Parameters

The pulse weight and pulse unit of each pulse input can be configured using EcoStruxure Power Commission software or Panel Server webpages. A pulse counter is activated when the corresponding digital input is configured as a pulse input.

The pulse weight must be calculated according to the characteristics of the pulses delivered by the meter, and the meter element unit. For the Panel Server, the pulse weight is the pulse value expressed in the meter element unit. The following table shows some examples:

Examples:

WAGES pulse value Meter element unit Pulse value in meter element unit Pulse weight in webpages

125 liters

m3

1 pulse = 0.125 m3

0.125

1 liter

m3

1 pulse = 0.001 m3

0.001

10 Wh

Wh

1 pulse = 10 Wh

10

1 kWh

Wh

1 pulse = 1000 Wh

1000

Setting the Parameters

The digital inputs are set as follows:

  • With EcoStruxure Power Commission software

  • On the Panel Server webpages, at Settings > Embedded Input Management

Digital Input Settings

The following table describes the settings of the digital inputs:

  • Embedded input 1 (DI01)

  • Embedded input 2 (DI02)

Parameter Description
Connected device

Used to select the type of each digital input (Embedded input 1 (DI01)/Embedded input 2 (DI02)):

  • Not connected

  • Pulse counter

  • Standard I/O

Standard Input Settings

The following table describes the settings of Embedded input 1 (DI01) or Embedded input 2 (DI02) when the digital input is set to Standard I/O:

Type of parameter Parameter Description
Identification Name

Enter the input name.

Label

Enter the input label.

Configuration Type

Displays the type of connected device

NOTE: Setting not editable.
Status settings I/O Contextualization

Select the contextualization from the list

Status name

If you select Custom as contextualization option, then enter the custom name for the device.

Meaning of input = 0

Displays a value depending on the I/O contextualization selected.

Enter your custom values if you select Custom as contextualization option.

  Meaning of input = 1

Displays a value depending on the I/O contextualization selected.

Enter your custom values if you select Custom as contextualization option.

Contextualization data Commodity

Select the commodity type in the list, as contextualization data.

Usage

Select the usage in the list, as contextualization data.

Pulse Counter Settings

The following table describes the settings of Embedded input 1 (DI01) or Embedded input 2 (DI02) when the digital input is set to Pulse counter:

Type of parameter Parameter Description
Identification

Name

Enter the input name of the device.

Label

Enter the input label as per the name plate in the network.

Configuration

Type

Displays the type of digital input

NOTE: Setting not editable.
Pulse settings

Meter element

Select either a pre-defined meter element or Custom in the list.

NOTE: If a meter element is selected, the meter unit, flow element, and flow unit are displayed.

Meter element name

Enter the name of the custom meter element.

NOTE: Displayed when Custom is selected.

Meter unit

Displays the consumption unit of the meter element.

NOTE: Editable when Custom is selected.

Flow element

Displays the name of the flow the meter element is intended for.

NOTE: Editable when Custom is selected.

Flow unit

Displays the unit of the meter element flow .

NOTE: Editable when Custom is selected. Flow results for a custom element is calculated as flow per hour.

Pulse weight

Enter the pulse weight (pulse value expressed in meter element unit).

NOTE: Depending on the language of your browser, to add a decimal value, for example 1.125, you may need to copy and paste the value into the field.

Preset meter consumption value

Allows you to set a value for consumption prior to starting metering through the current Panel Server, for example, when the metering device is replaced.

Contextualization data

Commodity

Select the commodity type in the list, as contextualization data.

Usage

Select the usage in the list, as contextualization data.

Consumption and Flow Calculation for Pulse Counter

When a digital input is configured as a pulse counter, the following information is available through Modbus registers and is displayed in the Monitoring & Control webpage:

  • Consumption: total consumption since monitoring began

  • Flow: instantaneous value calculated between the last two pulses

The data is calculated and stored in Modbus registers every 60 seconds.

NOTE: The Panel Server counts the pulse on the falling edge.

Consumption is calculated as (number of pulses x pulse weight) + preset meter consumption value (if any).

Example with pulse weight = 0.125: (20 pulses x 0.125 m3) + 0 = 2.5 m3.

Flow is calculated as the consumption between the last two pulses/ time between last two pulses (t) in seconds. As the consumption between the last two pulses is always equal to the pulse weight, this can be simplified as Pulse weight/ t

Example: with pulse weight = 0.125 and one pulse every 3 minutes 0.125/180 = 0.00069 m3/s

The average power data (or average flow) between two pulses is reset to 0 after a duration d = (3 x t), where t is the time in seconds between the last two pulses received. If (3 x t) is less than 5 seconds, the duration d is five seconds.

Meter values are saved each time the value changes. Cumulative pulse count values are stored to memory after each change. The meter parameter setting dates are saved instantly to memory.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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