Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 463

APPENDICES
No. Name
2
SW004B Host CPU status
(75)
2
Data linking start status
SW004D
(host)
(77)
2
Data linking stop status
SW004F
(host)
(79)
2
Data linking start status
SW0051
(entire system)
(81)
2
Data linking stop status
SW0053
(entire system)
(83)
SW0054
Parameter information
(84)
SW0055
Parameter setting status
(85)
2: Valid only when the SB0047 is off. When it turns on (error), the last data are retained.
App - 24
Table 4 Link special register (SW) list (continued)
Description
Indicates the CPU status of the host.
0 : Normal
Other than 0 : Abnormal (For the error codes, refer to
Section 8.3 or the "Error Code" chapter of
QCPU User's Manual (Hardware Design,
Maintenance and Inspection).)
Stores the result of starting cyclic transmission with Link startup
(host) (SB0000).
0 : Normal
Other than 0 : Abnormal (Refer to the error codes in Section
8.3)
Stores the result of stopping cyclic transmission with Link stop
(host) (SB0001).
0 : Normal
Other than 0 : Abnormal (Refer to the error codes in Section
8.3)
Stores the result of starting cyclic transmission with System link
startup (SB0002).
0 : Normal
Other than 0 : Abnormal (Refer to the error codes in Section
8.3)
Stores the result of stopping cyclic transmission with System link
stop (SB0003).
0 : Normal
Other than 0 : Abnormal (Refer to the error codes in Section
8.3)
At the PLC to PLC network.
Stores the parameter information.
(When the SB0054 and SB0055 are off.)
b15 b14 to b2 b1 b0
0 to 0
MELSECNET/H
0: Not designated
1: Designated
(When the SB0055 is on.)
b15 b4 b3
0 to 0 0 1
When remote I/O net
Stores the parameter information.
(When the SB0054 and SB0055 are off.)
to
b15
0 to
At the PLC to PLC network.
Stores the status of the parameters.
0 : Normal parameter
1 or more : Abnormal parameter (Refer to the error codes
in Section 8.3)
Type
00: Use only common parameters
01: Common parameters + station
specific parameters
10: Use only default parameters
11: Default parameters + station
specific parameters
b2 b1 b0
= 0F : Parameter error
1 1 1
H
Check the error code in the SW055.
b3 b2 b1 b0
0
0 0
Intelligent function
module parameter
0: No
1: Yes
[Availability column] Loop: optical loop, Bus: coaxial/twisted bus
MELSEC-Q
Use permitted/prohibited
Remote
Control Normal
master
station station
station
Loop Bus Loop Bus Loop
: Available,
Remote I/O
station
Bus Loop Bus
: Not available
App - 24