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3.4.8 Message Transmission
This transmission system transmits data among specified stations at irregular time. This system is applicable to
transmission of a lot of data, such as trace-back data if a fault occurs. This transmission system is optional
system specifications.
3.4.9 Transmission Error Detection
Table 3.4.23 shows the transmission error items.
Table 3.4.23 Transmission Error Items
Detection method in transmission board
Item Purpose
Content
Detection method by the side of CTR board
•
Watch dog of transmission board CPU
TL_F1
Own station
error
CPU error etc. the
failures used as
the standard of
transmission
board
replacement.
If an error occurs in drive
equipment station (own
station) during transmission
in the online mode, own
station detects TL_F1 to
inform that the transmission
enters the off-line mode.
•
CN2 signal / SIP1
TL_F2
Initialize
error
Connection
between
transmission
board and CTR
board is checked.
If the mode is not changed
to the on-line mode even
after the power is initialized,
drive equipment detects
TL_F2 to inform that the
transmission is in the
off-line mode.
•
The error in initialization processing
•
Operation status of self-station
•
Transmission way power supply fall
(PROFIBUS)
•
The on-line state of the station on network
•
The updating state of data of scan
memory
•
The error in network power supply
(DeviceNet)
TL_F3
Transmission
error
Transmission way
connection of
self-station and
master-station,
the error in
transmission way
power supply, etc.
are checked.
(The error of +5V
power supply are
detected as CTR
board error)
If the transmission is in the
off-line mode, drive
equipment detects TL_F3 to
inform that the transmission
enters the off-line mode.
•
Station status / on-line mode
•
On-line map / master station on-line signal
•
Scan healthy map / healthy signal of
received scan data
•
Received heartbeat of scan transmission
(ISBus)
•
The on-line state of the station on network
•
The updating state of data of scan
memory
TL_F4
Transmission
error
between
drives
Transmission way
connection of
other station in
transmission
between drives is
checked.
If the station specified by
TL_OP1_ST to
TL_OP4_ST is in the
off-line mode, drive
equipment detects TL_F4 to
inform that the transmission
between drives enters the
off-line mode.
•
On-line map / on-line signal of other
station in transmission between drives
•
Scan healthy map / healthy signal of
received scan data
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