06.03
7.3 SIMATIC S7 project
7-240
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
After synchronization to the equidistant DP cycle has been activated for all DP
slaves, the timer requirement of the cyclic portion of DP communication must be
calculated.
Calculation is performed by the DP master on activation of the equidistant bus
cycle.
Tab: General
Group: Node
Button: “PROFIBUS...”
Dialog: Properties – PROFIBUS Interface SIMODRIVE ...
Tab: Parameters
Button: “Properties...”
Dialog: Properties PROFIBUS
Tab: Network settings
Button: “Options...”
Dialog: Options
1st Optional field: Enable equidistant bus cycle
2nd Optional field: Enable equidistant bus cycle
When calculating the cyclic portion of the PROFIBUS communication, the time
for the equidistant DP cycle is automatically changed to the time required as the
minimum. This change must be undone by reentering the time intended for the
equidistant DP cycle.
Group: Equidistant time in msec
Equidistant DP cycle: Equidistant time
OK
OK
OK
Cancel
Help
OK
Cables
Node
Isosynchronism
Activate equidistant bus cycle / recalculate equidistant time
Number of PGs/OPs/TDs on the PROFIBUS
0
0
Configured:
Total:
Equidistant time in msec
Equidistant DP cycle
2.000
( 1.451 minimum)
Details ...
Options
Fig. 7-10 Dialog: Options
Equidistant master
cyclic portion
T
DX
Dialog:
cont’d.
Equidistant DP
cycle T
DP
Dialog:
cont’d.
7 PROFIBUS DP Communication
Содержание SINUMERIK 840Di
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