Mitsubishi Electric Q26UD(E)HCPU User Manual page 590

Melsecq series
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Number
Name
Meaning
Diagnostic
Diagnostic
SD1742
information
information
status flag
status flag
Number of
SD1743
occupied
stations
SD1744
Group No.
IP address
SD1745
(lower digits)
IP address
SD1746
(upper digits)
Diagnostic
information 1
Accumulated
SD1753
number of
timeouts
Accumulated
number of
SD1754
disconnection
detections
588
Explanation
• 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).
b15
...
b8
b7
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.
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.
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.
• 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.
b15 ... b8 b7 ... b0
SD1745
3
SD1746
1
1 to 4: First to fourth bytes
• 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.)
• 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.)
Set by
(When Set)
S (Status
change)
...
b0
4
S (Status
2
change)
Corresponding
Corresponding
ACPU
CPU
D9
*1
QnUDV
New
*2
LCPU
*1
QnUDV
New
*2
LCPU

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