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Bosch Rexroth AG
Notes on commissioning and application
7.4.4
MLD performance comparison
Fig. 7-42:
Value with Little Endian (up to MPx08)
When the exemplary program is ported to the "IndraDrive Cs" range, a differ‐
ent value is obtained via the pointer due to the "Big Endian" conversion; this
makes the IF query inconsistent. In this example, the IF query would have to
be adjusted.
Fig. 7-43:
Value with Big Endian (as of MPx17)
If function blocks are used to write list parameters, e.g.,
"MB_WriteListParameter", the field with the values to be written
should always have the same data length as the list parameter.
Otherwise, the problems described above will occur.
A performance comparison measurement should be made with regard to
MLD.
The "MX_IECTaskGetLoad" function block of the "MX_Base" library should
be
used
for
"MX_IECTaskGetLoad" function block is used to activate the extended run‐
time measurement. It displays information on the task load.
The task load is the percentage ratio of the calculating time (t
the PLC program to the maximum available calculating time in a task cycle
(t
):
cycle
Task load = (t
used
It is recommended to determine the task load of the user programs. If the
load is rather high (more than 85%), it might be necessary to adjust the task
cycle time or to use an "IndraDrive" controller with Advanced performance.
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
DOK-INDRV*-MLD3-**VRS*-AP02-EN-P
Rexroth IndraDrive Rexroth IndraMotion MLD (2G) as of MPx-18
the
performance
comparison
/t
) [%]
cycle
measurement.
The
) used for
used
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