Mitsubishi Electric SW0DNC-MNETH-B User Manual page 134

11 PROGRAMMING
11
Device Name
SB20 Module status
Baton pass status of
SB47
host
Data link status of
SB49
host
Baton pass status of
SB70
each station
Data link status of
SB74
each station
SW70 Baton pass status of
to each station
73 (per station number)
SW74 Data link status of
to each station
77 (per station number)
11 - 2
Assignment of link special relays (SB) and link special registers (SW) when multiple
boards are installed
Description
Indicates the communication status between
MELSECNET/H board and personal computer.
Indicates the baton pass status of the host.
It is in a status that the cyclic transmission and
transient transmission can be performed when it is
normal.
Indicates the data link status (cyclic transmission
status) of the host.
Indicates the baton pass status of each station
(including the host).
Reserved stations and stations having numbers
higher than the maximum station number are not
included.
This device turns off when SW70 to 73 are all "0".
Indicates the data link (cyclic transmission) status of
each station (including the host).
Reserved stations and stations having numbers
higher than the maximum stations number are not
included.
This device turns off when SW74 to 77 are all "0".
Stores the baton pass status of each station
(including the host).
b15 b14 b13 b12 to
to
SW70 16 15 14 13
SW71 32 31 30 29 to
SW72 48 47 46 45 to
SW73 64 63 62 61 to
Numbers 1 to 64 in the table denote station numbers.
Stores the data link (cyclic transmission) status of
each station. (Including the host)
b15 b14 b13 b12 to
to
16 15 14 13
SW74
to
32 31 30 29
SW75
48 47 46 45 to
SW76
64 63 62 61 to
SW77
Numbers 1 to 64 in the table denote station numbers.
Off (0)
Normal
Normal
(Data link enabled)
Data link being executed
(Executing cyclic
transmission)
All stations normal
All stations executing
data link
(All stations executing
cyclic transmission)
Baton pass normal
(including reserved
b4 b3 b2 b1 b0
stations during online
5 4 3 2 1
and stations having
21 20 19 18 17
numbers higher than the
37 36 35 34 33
maximum station
53 52 51 50 49
number)
Executing data link
(including reserved
b4 b3 b2 b1 b0
5 4 3 2 1 stations and stations
21 20 19 18 17 having numbers higher
37 36 35 34 33
than the maximum
53 52 51 50 49
station number)
MELSEC
Device status
On (1)
Abnormal
Abnormal
(Host disconnected)
Data link being stopped
(Set after refresh
completion)
One or more stations are
abnormal
One or more stations are
not executing data link
Baton pass abnormal
(including reserved
stations during offline
test and stations having
numbers higher than the
maximum station
number)
Station not executing
data link
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