Manual

A. Technical appendix
A−20
Festo P.BE−SFC−DC−PB−S7−EN en 0604NH
Overview of parameters involved (see appendix B.1.2)
Parameters involved Description PNU
Position specifications Max. permitted speed
1)
502
Acceleration in acceleration unit (inc/s
2
) 541
Deceleration in deceleration unit (inc/s
2
) 542
Start CPOS.B1 = positive edge: Start
(CDIR.B0 = nominal position absolute/relative)
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)
Valid nominal position is set (Set_Value_Position)
Valid nominal speed is set (Set_Value_Velocity)
1)
In the control bytes the master transfers a percent value which is multiplied by the maximum
permitted speed, in order to achieve the final nominal speed.
Tab.A/10: Parameters involved in Direct mode