Manual

A. Technical appendix
A−17
Festo P.BE−SFC−DC−PB−S7−EN en 0604NH
Record composition
A positioning task in Record Select mode is written with one
record of nominal values. Each nominal value is addressed by
its own PNU. A record consists of the nominal values with the
same subindex.
Causes of faults in application:
 referencing has not been carried out
 the target position and/or the preselect position cannot
be reached
 invalid record number
 record not initialized.
Overview of parameters involved (see appendix B.1.2)
Parameters involved Description PNU
Record control byte 1 401
Nominal value 404
Speed 406
Acceleration move towards 407
Deceleration braking 408
Start SFC_DC_CONTROL  Start_Positioning_Task = positive edge: Start
 Jogging and referencing have priority.
Reply message SFC_DC_CONTROL  MC = 0: Motion Complete
SFC_DC_CONTROL  Ack_Start = positive edge: Quit Start
SFC_DC_CONTROL  Drive_is_moving = 1: Drive moves
Prerequisites Device control via PLC/field bus (Drive_Control_FCT_HMI = 0)
Controller in status Drive enabled" (Drive_enabled = 1)
Record number must be valid (Record_No = 0 ... 31)
Tab.A/9: Parameters involved Record Select