Redundant Fieldbus Control - ABB ACS800 Firmware Manual

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Redundant fieldbus control

It is possible to connect two fieldbuses to the drive with the following adapter
configuration:
• Type Rxxx fieldbus adapter module (not RMBA-01) is installed in drive slot 1.
• RMBA-01 Modbus Adapter module is installed in drive slot 2.
The control (that is, the Main Reference data set, see section
interface
LINK to FIELDBUS or STD MODBUS.
In case there is a communication problem with one fieldbus, the control can be
switched to the other fieldbus. Switching between the buses can be controlled, for
example, with Adaptive Programming. Parameters and signals can be read by both
fieldbuses, but simultaneous cyclical writing to the same parameter is forbidden.
Fieldbus control
ACS800
RMIO board
RPBA-01 adapter
PROFIBUS-DP link
RMBA-01 adapter
std. Modbus link
on page 241) is activated by setting parameter
Eg PROFIBUS
Slot 1
Slot 2
Modbus
The fieldbus control
98.02 COMM MODULE