Mitsubishi QJ71LP21 Reference Manual page 152

6 PROGRAMMING
No. Name
SB0020
Module status
(32)
SB0044 Station setting
(68) (host)
SB0047 Baton pass status
(71) (host)
Control station
status
1
(host)
SB0048
(72)
Remote master
station status (host)
6
SB0049 Host data link
(73) status
1
Baton pass status
SB0070
of each station
(112)
1 Cyclic transmission
SB0074 status of each
(116) station
1
SW0070
(112)/
SW0071
Baton pass status
(113)/
of each station
SW0072
(114)/
SW0073
(115)
1: Valid only when SB0047 is off. When it turns on (error), the last data are retained.
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List of Interlock Devices
Description
Indicates the network module status.
Off: Normal
On: Abnormal
When PLC to PLC network
Indicates the station type set with the parameter of the host's
network module.
Off: Normal station
On: Control station
When remote I/O network
Indicates the station type set with the parameter of the host's
network module.
Off: Remote I/O station or multiplexed remote sub-master
station
On: Remote master station or multiplexed remote master
station
Indicates the host's baton pass status (transient transmission
enabled).
Off: Normal
On: Abnormal
When PLC to PLC network
Indicates the host's status.
Off: Normal station
On: Control station (SB0044 is on)
Sub-control station (SB0044 is off)
When remote I/O network
Indicate the host status
Off: Remote I/O station
On: Remote master station
Indicates the host's data link operation status.
Off: Normal
On: Abnormal (Set after refreshing completes.)
Indicates the baton pass status of each station. (Not applicable to
reserved stations and the station with the maximum station number
or higher)
Off: All stations normal
On: Faulty station exists
Turns off when the SW0070 to SW0073 are all "0."
Indicates the cyclic transmission status of each station. (Not
applicable to reserved stations and the station with the maximum
station number or higher)
Off: All stations are executing data linking
On: Stations that are not executing data linking exist
Turns off when the SW0074 to SW0077 are all "0."
Stores the baton pass status of each station (Including the host).
<Online>
0: Normal (including the stations with the maximum station
number and smaller numbers as well as reserved stations)
1: Abnormal
<Offline test>
0: Normal
1: Abnormal (including the stations with the maximum station
number and smaller numbers as well as reserved stations)
b15 b14 b13 b12 to
SW0070 16 15 14 13 to
32 31 30 29 to
SW0071
to
SW0072 48 47 46 45
SW0073 64 63 62 61 to
Control
station
Optical Coaxial Optical Coaxial Optical Coaxial Optical Coaxial
b4 b3 b2 b1 b0
5 4 3 2 1
21 20 19 18 17
34
37 36 35 33
53 52 51 50 49
Numbers 1 to 64 in the above table
indicate the station numbers.
[Availability column] Optical: optical loop, Coaxial: coaxial bus
MELSEC-Q
Use permitted/prohibited
Remote
Normal Remote I/O
master
station station
station
: Available, : Not available
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