beautypg.com

Record composition – Festo Контроллер двигателя SFC-ST User Manual

Page 101

background image

A. Technical appendix

A−17

Festo P.BE−SFC−DC−PB−S7−E N 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:

ć

referencing has not been carried out

ć

the target position and/or the preselect position cannot
be reached

ć

invalid record number

ć

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 ć Start_Positioning_Task = positive edge: Start
Ĉ Jogging and referencing have priority.

Reply message

SFC_DC_CONTROL ć MC = 0: Motion Complete
SFC_DC_CONTROL ć Ack_Start = positive edge: Quit Start
SFC_DC_CONTROL ć 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