Working with XtraDrive-DP
C
HAPTER
3
Last printed: 6/1/03 4:21 PM
Ch3WorkingWith.doc
Last saved: 6/1/03 4:16 PM
39
3
Workin
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ith
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Workin
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Reading Variables
You define the variables you want to read by choosing at least one
of the following modules during configuration (see
Setting Up
XtraDrive-DP
, page 25). The variables are read in a predefined,
fixed order. You can choose one or more of these modules and
define the order of the modules, but not the order of the variables
within the modules.
Timeline refers to the lapse time for the transfer of a message
between the PROFIBUS I/O map and the XtraDrive-DP.
Module
Offset Size
Description
Timeline
(
µµµµ
s)
0
4
Status_word 125
4 4
Clock
2000
8 1
Mode_of_operation
2000
XtraDrive Status
9 1
Command_mode
2000
0
4
Profile_velocity 2000
4 4
Profile_acceleration
2000
8 4
Jerk_smoothing_time
2000
12 4
Max_profile_velocity
2000
16 4
Max_profile_acceleration
2000
20 2
CW_Torque_limit
2000
22 2
CCW_Torque_limit
2000
24 2
Application_gain
2000
26 1
Motion_end_window
2000
System Profile (optional)
27 1
Exact_mode
2000
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Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20
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