Parameter Management; Fb_Xxxpa; Description - Siemens SIMATIC PCS 7 Function Manual

Parameter management

6.1

FB_XXXPA

6.1.1

Description

Object properties
The following table shows the object properties of FB_XXXPA:
FB_XXXPA
Area of application
The block is used to request and provide parameter set data in the AS.
Startup characteristics
The "FB_XXXPA" block is called from the startup OB upon CPU startup. This call is configured
during CFC configuration by the CFC editor. Internal data and outputs are reset upon startup.
Program execution starts once the "RUNUPCYC" cycles have elapsed.
During startup, the output "QRUN_UP" = 1.
Time characteristics
The block must be called from a cyclic interrupt OB. The CFC editor enters the sampling time
of the block in the "SAMPLE_T" parameter.
Communication
Data exchange with the "FB_UA_RM" communication block on the AS level is performed via
the "UDT_UA_R_REQ_ST" (request) and "UDT_UA_R_ST" (feedback) structures.
Corresponding scripts for the function block and its functionalities on the AS level are available
for handling on the OS level.
The "ALARM_8P" structure is used to implement data communication with the OS message
system.
Advanced Process Functions (APF)
Function Manual, 07/2016, A5E38719883-AA
Name
Assigning block numbers with
the engineering tool.
Number Family
APF
6
Module
Parameter management
145