Siemens SIMATIC NET PROFIBUS Manual de Serviço descarregar pdf (Página 46)

Overview of the DP Base Interface

DP Base Programming Interface for CP 5613/CP 5614

C79000-G8976-C108-01

Overview of the Sequence of Events

Software EventsHardware Events

Activate hardware event

Event on input data

change *)

Event on diagnostics

Event on cycle start

Fast logic on

Initialize required semaphore (during program startup)

Send aknowledged call

DP_ds_read/write

DP_get_actual_cfg

DP_alarm_ack

or notify ready to receive with

DP_enable_event:

for alarms/diagnostics

for status changes

Wait at semaphore (optional for software events)

Fetch event in process

image

Fetch event with

DP_get_result

Release semaphore (at end of program)

*) Also possible if data changes in the slave module of the CP 5614.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 237 238

Sem comentários

Siemens SIMATIC NET PROFIBUS Manual de Serviço Página 46