Contents

Table 6.22 Alarm Detection
Display Meaning Probable causes Corrective Actions
CE
MEMOBUS Com Err
(flashing)
MEMOBUS Communications Alarm
Detected when control data was not
received correctly for two seconds and
H5-04 = 3 and
H5-05 = 1.
Connection is broken and/or the master
has stopped the communication.
Check the connections and all
user-side software configurations.
BUS
Option Com Err
(flashing)
Option Communications Alarm
After initial communication was
established, the connection was lost.
Connection is broken and/or the master
has stopped the communication.
Check the connections and all
user-side software configurations.
Ext Run Active
Cannot Reset
Detected when a RESET command is
input while the RUN command is still
active
The RUN command has not been
removed and a RESET command is
input by digital input or by the
RESET button on the digital operator.
Remove the RUN signal first and
reset the error.
CALL
ComCall
(flashing)
Communications on Standby
Communication has not yet been
established.
Connection was not made properly or
user software was not configured to
the proper baud rate or configuration
(e.g. Parity).
Check the connections and all
user-side software configurations.
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