
MLD(-M) behavior
When a program is modified or downloaded, the local axis is switched to
"AH" or "AB" when using MLD-M, as long as the PLC has control. Remote
axes are also switched to "AH" or "AB" when in control (via MLD-M system
mode). In addition, a message box is displayed on the screen before the
download dialog if an axis is under MLD control. This message indicates that
the axis (axes) is (are) stopped during the following download (not Online
Change).
Messages when logging in
If a program was modified, a dialog displays during login, providing you with
several options:
Fig. 4-22:
Messages when logging in
4.6.2
General (for MLD-S and MLD-M)
General information
This section describes all general functions regarding how MLD-S and MLD-
M react to errors. MLD-S and MLD-M specifically are described in separate
sections.
Brief description and overview
An overview of all possible errors in PLC blocks is provided in the
section "Error reference lists" in the Library Description of
MLD-2G.
Functional features
MLD has been integrated in the error handling of the drive firmware. Fatal
system errors are handled by the drive firmware. In this case, the drive imple‐
ments a defined handling method. Other system errors caused by PLC pro‐
gramming are handled in the PLC.
Errors handled in the drive
●
The drive reacts to fatal exception errors, such as incorrect address ac‐
cess or floating point exception. There are defined reactions to these er‐
rors (see Reference Book for diagnostic messages, chapter "Behavior in
the case of fatal system errors").
●
Drive errors and drive warnings can be recognized at any time via the
diagnostic drive message (cf. S-0-0390, S-0-0095, etc.).
●
A warning or an error is generated from a PLC program that can be trig‐
gered using simple function calls:
DOK-INDRV*-MLD3-**VRS*-AP02-EN-P
Bosch Rexroth AG
71/267
Rexroth IndraDrive Rexroth IndraMotion MLD (2G) as of MPx-18
Basic functions of Rexroth IndraMotion MLD
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01