Mitsubishi Electric Q13UDVCPU - Page 590

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SD1742
Diagnostic
information
status flag
Diagnostic
information
status flag
• After the END instruction in the scan where SM1741 turns
on is executed, the status (valid or invalid) of diagnostic
information (Diagnostic information 1, Diagnostic
information 2) of the slave station specified in SD1741 is
stored.
• If the station number of the slave station specified in
SD1741 is the start station number of the occupied
stations, 1 is stored in Diagnostic information 1 (b0 to b7)
and Diagnostic information 2 (b8 to b15). (If the station is a
reserved station, 0 is stored in Diagnostic information 2 (b8
to b15).)
• If parameters have not been set to the slave station
specified in SD1741 or the station number of the slave
station specified in SD1741 is not the start station number
of the occupied stations, 0 is stored in Diagnostic
information 0 (b0 to b7) and Diagnostic information 2 (b8 to
b15).
b0 to b7: Diagnostic information 1 (0: Invalid, 1: Valid)
b8 to b15: Diagnostic information 2 (0: Invalid, 1: Valid)
• When b0 to b7 are 1 (valid), the number of occupied
stations, group number, IP address, the accumulated
number of timeouts, and the accumulated number of
disconnection detections are stored in SD1743 to SD1754.
• When b0 to b7 are 0 (invalid), 0 is stored in SD1743 to
SD1754.
• When b8 to b15 are 1 (valid), the manufacturer code,
model code, device version, module information, error
code, and detailed module information are stored in
SD1758 to SD1767.
• When b8 to b15 are 0 (invalid), 0 is stored in SD1758 to
SD1767.
S (Status
change)
New
QnUDV
*1
LCPU
*2
SD1743
Diagnostic
information 1
Number of
occupied
stations
After the END instruction in the scan where SM1741 turns on
is executed, the number of occupied stations of the slave
station specified in SD1741 is stored.
S (Status
change)
New
QnUDV
*1
LCPU
*2
SD1744 Group No.
After the END instruction in the scan where SM1741 turns on
is executed, the group number of the slave station specified
in SD1741 is stored.
SD1745
IP address
(lower digits)
• After the END instruction in the scan where SM1741 turns
on is executed, the IP address of the slave station
specified in SD1741 is stored.
• When the IP address has not been set in parameter, 0 is
stored.
1 to 4: First to fourth bytes
SD1746
IP address
(upper digits)
SD1753
Accumulated
number of
timeouts
• After the END instruction in the scan where SM1741 turns
on is executed, the accumulated number of timeouts
occurred in the slave station specified in SD1741 is stored.
0: No timeouts
1 to 65535: Number of timeouts (When the count exceeds
65535, counting is continued from 1 again.)
SD1754
Accumulated
number of
disconnection
detections
• After the END instruction in the scan where SM1741 turns
on is executed, the accumulated number of disconnections
detected in the slave station specified in SD1741 is stored.
0: No disconnections
1 to 65535: Number of disconnection detections (When the
count exceeds 65535, counting is continued from 1 again.)
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
b15 b7 b0b8……
3
1
4
2
b15 ... b8 b7 ... b0
SD1745
SD1746