Appendix 5 List Of Link Special Register (Sw) Areas - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 5
The link special register (SW) stores the information during data link. Error locations and causes can be checked by using and
monitoring the link special register (SW) in programs.
Application of the link special register (SW)
By using the link special register (SW), the status of CC-Link system can be checked from HMI (Human Machine Interfaces)
as well as the engineering tool.
Refresh of the link special register (SW)
To use the link special register (SW), set them in "Link Refresh Settings" under "Basic Settings" so that they are refreshed to
the devices or labels of the CPU module. ( Page 62 Link Refresh Settings)
Range where data are stored by users and range where data are stored by the system
The following ranges correspond to when the link special register (SW) areas are assigned from SW0000 to SW01FF.
• Stored by users: SW0000 to SW001F
• Stored by the system: SW0020 to SW01FF
List of link special register (SW) areas
The following table lists the link special register (SW) when they are assigned from SW0000 to SW01FF.
When a standby master station is used, refer to the respective columns under "Availability" in the table as explained below.
• When a standby master station is operating as a master station: "Master station" column
• When a standby master station is operating as a standby master station: "Local station" column
Do not write any data to an area whose number is not on the following list or ranges where data are stored by
the system. Doing so may cause malfunction of the programmable controller system.
No. Name
SW0003 Multiple
temporary error
invalid station
specification
SW0004 Temporary error
to invalid station
SW0007 specification
SW0008 Line test station
setting
APPX
158

Appendix 5 List of Link Special Register (SW) Areas

List of Link Special Register (SW) Areas
Description
Selects whether to specify multiple temporary error invalid stations.
00: Multiple stations set in SW0004 to SW0007 specified
01 to 64:A single station specified from 1 to 64
(The number represents the station number to be set as a temporary error invalid
station.)
Specifies a temporary error invalid station.
0: Temporary error invalid station not specified
1: Temporary error invalid station specified
b15 b14 b13
SW0004 16 15 14
SW0005 32 31 30
SW0006 48 47 46
SW0007 64 63 62
The stations need not be set by the number of occupied stations.
Error invalid stations, reserved stations, station with the end station number, and
stations later than that are excepted.
Sets a station number where the line test is executed.
0: Entire system (executed to all stations)
01 to 64:Specified station
Default: 0
b12 to b3 b2 b1
13 to 4 3 2
29 to 20 19 18
45 to 36 35 34
61 to 52 51 50
1 to 64 in the table indicate station numbers.
Availability (: Available, : Not
available)
Online
Master Local
station station
 
 
b0
1
17
33
49
 
Offline


