Schneider Electric SR2MAN01 user manual Cycle type, Duration of pulse

LD Language Elements

Configuration The block's parameter settings can be accessed either when entering the command from Front Panel line or from the PARAMETERS menu if the block has not been padlocked.

The parameters to enter are the following:

zCycle type,

zDuration of pulse,

zPreset value,

zType of counting,

zParameter lock,

zLatching.

Cycle type:

This parameter determines the behavior of the fast counter when it reaches the

preset value (when it is in TO mode), or when it reaches the value zero (when it is in FROM mode):

The cycle type may be:

zSingle: Reaching the preset value (TO mode) or the zero value (FROM mode) does not affect the current value of the counter.

The current counter value changes on an on-going basis. The output is activated when the current value is greater than the preset value (TO mode) or when the current value is less than the preset value (FROM mode).

zRepetitive: In the TO mode, the current value is reinitialized when it reaches the preset value and in FROM mode, it is reset to the preset value when it reaches zero.

The output is enabled following this reinitialization and remains active for a time that may be configured with the parameter: Duration of pulse (from 1 to 32,767 times 100 ms).

Duration of pulse:

Symbol of the Duration of pulse parameter:

I

This parameter is only displayed if the cycle is repetitive. It determines the duration during which the fast counter remains active when the current value reaches the

preset value (when it is in TO mode), or when it reaches the value zero (when it is in FROM mode).

This value must be between 1 and 32,767 (x 100 ms).

Preset value:

Symbol of the Preset value parameter:

P

This value is between 0 and 32,767, and represents:

zThe value to reach in the counting mode to the preset value (TO mode),

zthe initial value in the down-count mode from the preset value (FROM mode).

SR2MAN01 11/2007 121