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5.3
System bus
Master
Parameter
Max. repetitions
(max. no. of re-
tries)
Continuation after
system bus error
(run after s. bus
err.)
Ignore system
start
NOTE!
The settings configured under "Master" influence the transfer of data via the system bus. Sub-optimal
settings here will disrupt or even interrupt the communication within the system. For this reason, these
parameters are only permitted to be modified by a service engineer from the device manufacturer (or by
someone acting on their instructions).
Modules
The process of configuring the modules (controller, relay, analog IO units, digital IO units) is described
in the operating manual for the respective module.
chapter 1.8 "Available technical documentation", Page 18
If used together with a type JUMO variTRON CPU, the description of the NV connecting list provided in
the manual does not apply. In this case, all external connections (connections running via the system
bus) must be realized in the PLC application.
Selection/data input
5 to 10
Inactive
Active
Inactive
Active
5 Configuration
Description
Maximum number of times a faulty frame is repeat-
ed before the system bus switches to the status
"Stop".
The device can continue automatically as soon as
a system bus error that previously occurred is no
longer present.
No continuation
The device or the system bus must be manually
switched back to the status "Run".
For example, the system bus can be separately
switched to the status "Stop" (Safe-Operational) or
"Run" (Operational) in the web application using
the function "Service > System bus".
Continuation
The device automatically switches back to the sta-
tus "Run".
The system bus status can be independent of the
current system status (device status).
This may be required if a CODESYS application
first needs to perform extensive initialization be-
fore the system bus is permitted to switch to the
status "Run".
The system bus status follows the system status.
When the system starts, the system bus remains in
the status "Stop", regardless of the system status.
The system bus must be separately switched to
the status "Run". This can be done in the CODE-
SYS application (CmpSystembus), or performed
manually in the web application (Service > System
bus).
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