Siemens SIMATIC Manual page 42

Step Action
5
Make the following tests. Validate the control values via Variable > Enable control va-
lues.
"Jogging" mode
Customize as follows:
MODE_IN = 1:
Select "Jogging" mode
DRV_EN = 1:
Drive enable
SPEED:
Speed, 0 = Creep, 1 = Rapid
Drive start:
DIR_P = 1: Jogging into Plus direction
DIR_M = 1: Jogging into Minus direction
Note: Positioning mode is impossible if you
enable the two variables DIR_P and DIR_M.
Operating mode "Relative incremental ap-
proach"
Make these settings:
MODE_IN = 4:
Select "Relative incremental approach"
DRV_EN = 1:
Drive enable
TARGET:
Distance in pulses
SPEED:
Speed, 0 = Creep, 1 = Rapid
Drive start:
DIR_P = 1: Relative incremental approach into
Plus direction
DIR_M = 1: Relative incremental approach into
Minus direction
Diagnostics/Fault elimination
Errors can occur as a result of operator faults, incorrect wiring or configuration con-
flicts.
How to diagnose such errors and messages is described in the manual, Chapter
Error handling and interrupts".
"
Sample :
The "ZEn26_03_TF_____31xC_Pos" project contains more samples you can use
for orientation. You can customize all samples according to your personal applica-
tions.
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Bereich Automatisierungs und Antriebstechnik
Geschaeftsgebiet Industrie Automatisierungssysteme
Postfach 4848, D 90327 Nuernberg
8
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Result
In the "Status value" column, you can
monitor the following signal states:
ST_ENBL = 1:
Start enabled
MOD_OUT = 1:
Current operating mode: "Jogging"
WORKING = 1:
Running
ACT_POS:
Actual position value
In the "Status value" column, you can
monitor the following signal states:
ST_ENBL = 1:
Start enabled
MOD_OUT = 4:
Current operating mode: "Relative incre-
mental approach"
WORKING = 1:
Running
ACT_POS:
Actual position value
POS_RCD = 1:
In position
E Siemens AG 2001
Automation System S7-300, Getting Started – Digital
We reserve the right of modifications
A5E00105533 01
Printed in the Fed. Rep. of Germany
A5E00105533-01