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MELSEC-Q
APPENDICES
Table 3 Link special register (SW) list (Continued)
No. Name Description
Availability
Control
station
Normal
station
Remote
master
station
Remote I/O
station
Optical Coaxial Optical Coaxial Optical Coaxial Optical Coaxial
SW0044
(68)
Station setting
On PLC to PLC network: Stores the condition setting switch
status of the host.
0: Off
1: On
SW0044
00 0 0
b0b1b2tob6b7b8b9b10
b11
b12b13b15b14
0to0000
Network type
(0: PLC to PLC network)
Station type
(0: Normal station, 1: Control station)
Control station operation
(0: Switch to designated control station,
1: Keep current control station)
Operation mode
(0: Online mode, 1: Debug mode)
Host station network type
(0: MELSECNET/H mode, MELSECNET/10 mode,
1: MELSECNET/H Extended mode)
On remote I/O network: Stores the condition setting switch status
of the host.
0: Off
1: On
0001
SW0044
b15 b8 b7 b6 b2 b1 b0
0
b9
0
b10to
to
to
to
Network type
(1: Remote I/O network)
Station type
(0: Multiplexed remote sub-master
station, remote I/O station
1: Multiplexed remote master station)
Return mode
(0: Master station returns as master operating station
(control station).
1: Master station returns as sub-master operating station
(standby station).)
Parameter status
(0: Without parameters for remote sub-master station
1: With parameters for master station and sub-master station)
SW0046
(70)
Module type
Stores the network module type of the host.
00SW0046
b15 b14 b13 to b2 b1 b0
to
0: Duplex 1: Single
01: Optical 10: Coaxial 11: Twisted
0: Loop 1: Bus
SW0047
(71)
Baton pass status (host)
Stores the baton pass status of the host.
00
H: Executing data linking
01
H: Data linking stopped (instructed by other station)
02
H: Data linking stopped (instructed by host)
03
H: Executing baton pass (parameter received (no
transmission area in the host))
04
H: Executing baton pass (parameter error)
05
H: Executing baton pass (parameter not received)
06
H: Being disconnected (no baton pass)
07
H: Being disconnected (line error)
11
H: Loop test
12
H: Setup confirmation test
13
H: Station order check test
14
H: Communication test
1F
H: Offline test
SW0048
(72)
Cause of baton pass
interruption
Stores the cause of baton pass interruption of the host.
0 : Normal communication
1 : Offline
2 : Offline test
3 or more : Cause of interruption (refer to the error codes
in Section 8.3)
SW0049
(73)
Cause of data link stop
Stores the cause of data linking stop of the host.
0: Normal
1: Stop instructed
2: No common parameters
3: Common parameter error
4: Host CPU error
6: Communication aborted