“Pulse counting” parameter - Application program description - N 262D31 - N 262D51 - N 263D31 - N 263D51

Parameters of the “functions, objects” parameter card

Data type

Function:

This parameter sets the data type of the values for the "Pulse counting” function. The data type defines the possible counting range.

The following settings are possible:

Availability:

The "Data type” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter

Count at

Function:

This parameter is used to set when the counter reading changes.

The following settings are possible:

• Rising edge
  This setting changes the value on a rising edge. The rising edge corresponds to pressing the push-button.
• Falling edge
  This setting changes the value on a falling edge. The falling edge corresponds to a release of the push-button.
• Falling and rising edge
  This setting changes the value on rising and falling edge. This means that when a push-button is pressed and released, this corresponds to two counts and the value is changed twice.

Availability:

The "Count at” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter

Step

Function:

This parameter is used to set the value by which the counter reading changes with each pulse.

The following settings are possible:

The possible settings vary depending on the data type set in the "Data type” parameter:

Availability:

The "Step” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter

Start value

Function:

This parameter is used to set the value with which the counter restarts after downloading the ETS program or after an overload.

The value of this parameter can be overwritten by the value of the "A Start value” communication object.

The following settings are possible:

The possible settings vary depending on the data type set in the "Data type” parameter:

Availability:

The "Start value” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter
• “Starting value” communication object

Reset counter to start value after download

Function:

This parameter is used to set whether the counter reading is reset when the setting is downloaded from the ETS again.

The following settings are possible:

• disable
  The counter is not reset.
  With the "disable” setting, counter readings can be retained even if the configuration of other channels is changed. This means that the counter reading is not lost during service measures and there is no loss of data.
• enable
  The counter is reset.

Availability:

The "Reset counter to start value after download” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter

Behavior at max. counter value

Function:

This parameter determines the behavior of the counter when the maximum counter value is reached.

The maximum counter value depends on the set data type.

The following settings are possible:

• Stop counter:
  This setting stops the counter when the maximum counter value is reached. Further counting pulses are no longer recorded.
• Restart counter (overflow):
  With this setting the counter is restarted after reaching the maximum counter value. The new starting value can be set via the parameter "Start value” or the communication object "A Start value."

Availability:

The "Behavior at max. counter value” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter
• “Starting value” parameter
• “Starting value” communication object

Send value on request

Function:

This parameter sets whether the value of the counter is sent on request or whether requests to send the counter value are rejected.

Availability:

The "Send value on request” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter

Send value on change of value

Function:

This parameter determines whether the counter value is sent when the value changes.

The following settings are possible:

• disable:
  With this setting, the counter value is not sent automatically when a change is made.
• enable:
  With this setting, a telegram with the new counter value is sent when the counter value has changed by the value configured in parameter "Value change since last sent (count)."

Availability:

The "Send value on change of value” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

Other parameters:

If "enable” is selected, the following additional parameters appear:

• "Value change since last transmission (counter reading)” parameter
• "Block time for sending the value” parameter

More information:

• “Function of channels A + B” parameter

Value change since last sent (count)

Function:

This parameter is used to specify at which change of value compared to the last value sent the value of the corresponding communication object is sent again. Transmission occurs when the block time for sending the value has been exceeded.

The following settings are possible:

The possible settings vary depending on the data type set in the "Data type” parameter:

Availability:

The "Value change since last sent (count)” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Send value on change of value” on the parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter
• “Send value on value change” parameter

Block time for sending of value

Function:

This parameter determines when the next change of the counter reading will be sent at the earliest. If the changes of the counter value are faster than transmission can be executed, the current value at the time of sending is sent.

This setting prevents the bus load from becoming too high if the counter reading is changed too frequently. If the bus load is too high, telegrams could be lost.

Availability:

The "Block time for sending of value” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Send value on change of value” on the parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Send value on value change” parameter

Send value cyclically

Function:

This parameter can be used to set the time interval at which the counter value object is sent cyclically. If this is set to “00:00:00,” cyclic sending is deactivated.

Availability:

The "Send value cyclically” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”

More information:

• “Function of channels A + B” parameter

Above limit

Below limit

Function:

With this parameter the monitoring of a limit value can be switched on or off.

Exceeding or, in the case of negative counting, falling below the limit value immediately results in a logical 1 being sent via the communication object "A Above limit” or "A Below limit." The limit value can either be specified via the parameter "Threshold” or changed via the communication object "A Threshold” by telegram. It is also possible to query the limit value via this communication object. If the limit value is undercut again by resetting the counter reading or by changing the limit value, or if it is exceeded again in the case of a negative count, this immediately results in a logical “0” being sent, since the counter reading is again in the permitted range.

Note:

The name of the parameter depends on the setting of previous parameters.

If a signed data type has been set in the parameter "Data type” and additionally a negative value has been set in the parameter "Step", a message indicating "Below limit” is switched on with this parameter.

Availability: "Above limit” parameter

The "Above limit” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Data type” on the parameter card "Pulse counting"
• Setting: any
• Parameter "Step” on the parameter card "Pulse counting"
• Setting: positive value

Availability: "Below limit” parameter

The "Below limit” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Data type” on the parameter card "Pulse counting"
• Setting: “Signed value (...)"
• Parameter "Step” on the parameter card "Pulse counting"
• Setting: negative value

Other parameters:

• “Limit value” parameter
• "Send status on request” parameter
• "Send status on status change” parameter
• "Send status cyclically” parameter

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter
• "Change of counter reading per pulse” parameter
• “Over limit value” communication object
• “Under limit value” communication object
• “Limit value” communication object

Threshold

Function:

This parameter sets the limit value.

The following settings are possible:

The possible settings vary depending on the data type set in the "Data type” parameter:

Availability:

The "Threshold” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Above limit” or "Below limit” on parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Data type“ parameter
• “Over limit value” parameter
• “Under limit value” parameter

Send status on request

Function:

This parameter is used to set whether the status of exceeding or falling below the limit value is sent on request or whether requests for the status value are rejected.

The request is triggered via the communication object “Send status values.”

Availability:

The "Send status on request” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Above limit” or "Below limit” on parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Over limit value” parameter
• “Under limit value” parameter
• “Send status values” communication object

Send status on change of status

Function:

This parameter is used to set whether the status of exceeding or falling below the limit value is sent automatically after each status change.

Availability:

The "Send status on change of status” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Above limit” or "Below limit” on parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Over limit value” parameter
• “Under limit value” parameter

Send status cyclically

Function:

This parameter is used to set the time interval at which the status of exceeding or falling below the limit value is sent cyclically. If this is set to “00:00:00,” cyclic sending is deactivated.

Availability:

The "Send status cyclically” parameter is displayed when the following configurations have been made:

• Parameter "Function channels A + B” on the "device settings” parameter card
• Setting: “Single”
• Parameter "Function channel” on the “functions, objects” parameter card
• Setting: “Pulse counting”
• Parameter "Above limit” or "Below limit” on parameter card "Pulse counting"
• Setting: “enable”

More information:

• “Function of channels A + B” parameter
• “Over limit value” parameter
• “Under limit value” parameter