6.3
MC_SHELL Fieldbus Monitor
The fieldbus monitor function can be used with the PC user interface MC_SHELL, version 2.40 or
higher (Fig. 31). This function provides a user-friendly method of commissioning and diagnosis for
the use of the inverter in conjunction with the fieldbus. The two operating modes
Monitor and Control
provide a choice between a purely diagnostic mode in which the process data channels can only be
viewed, and a control mode in which modifications can also be carried out via the PC.
6.3.1
Diagnosis Using the Fieldbus Monitor
In
Monitor mode, the MC_SHELL fieldbus monitor allows the setpoints and actual values exchanged
between the higher-level control unit and the MOVITRAC
®
31.. inverter to be continuously and clearly
viewed and analyzed.
You will see all the information from the three process data channels, such as the description of the
process input data PI1-PI3 (actual values) and process output data PO1-PO3 (setpoints), and their
actual values as transmitted over the bus system.
6.3.2
Control Using the Fieldbus Monitor
In
Control mode, the fieldbus monitor can be used for manual control of the inverter via the PC. In
this case, the inverter displays the same drive characteristics as it does when it is controlled via the
fieldbus interface. Amongst other things, this operating method can provide easy training in the
concept of control of the MOVITRAC
®
31.. frequency inverter via a fieldbus.
Since MC_SHELL communicates with the inverter via the serial interface, familiarity with the
functionality of the inverter fieldbus can also be acquired without the fieldbus master, by entering all
setpoints manually via the fieldbus monitor (
Control mode). Fig. 32 shows which components you
can use for training in the concept of inverter control using a fieldbus.
00338AEN
Fig. 31: MC_SHELL fieldbus monitor for diagnosis and control in the fieldbus mode
6
MO
VITR
AC
®
RUN
BUS
FAULT
MC_SHELL
RS-232
MOVITRAC 31..
®
+ USS 11A + FFI 31.. or FFP 31..
or MOVITRAC 31.. size 0/DP
®
00339AEN
Fig. 32: Control via the MC_SHELL fieldbus monitor as a configuration aid
Commissioning and
Diagnosis
MOVITRAC
®
31.. Fieldbus Unit Profile
55
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
