App
- 52
Appendix 4 Comparison between CC-Link IE controller network and MELSECNET/H
Appendix 4.3 Link special relays (SB) and link special registers (SW)
APPENDICES
Appendix 4.3 Link special relays (SB) and link special registers (SW)
This section compares link special relays (SB) and link special registers (SW) between
CC-Link IE controller network and MELSECNET/H.
Some link special relays (SB) and link special registers (SW) have been changed for the
CC-Link IE controller network.
Verify the link special relays (SB) and link special registers (SW).
Appendix 4.5 Precautions for program replacement
(1) Comparison of link special relay (SB)
Change the link special relay (SB) in a sequence program referring to the following
chart.
In addition, the link special relay (SB) shown below is a list for a case when an
assignment range is SB0000 to SB01FF.
(a) Comparison with the MELSECNET/H module
: compatible,
: partially changed, — : incompatible
Table App.24 Comparison of link special relay (SB)
MELSECNET/H
CC-Link IE controller network
Compatibility
Precautions for replacement
No.
Name
No.
Name
SB0000
Link startup (host)
SB0000
Link startup (own station)
None
SB0001
Link stop (host)
SB0001
Link stop (own station)
SB0002
System link startup
SB0002
System link startup
SB0003
System link stop
SB0003
System link stop
SB0005
Clear retry count
—
—
—
Delete the sequence program
for the corresponding part.
SB0006
Clear communication error
count
SB0006
Clear communication error
count
(Content
changed)
The area for clear target is
different in the CC-Link IE
controller network module.
SB0007
Clear forward loop
transmission errors
SB0007
Clear IN-side transmission
error count
SB0008
Clear reverse loop
transmission errors
SB0008
Clear OUT-side transmission
error count
SB0009
Clear loop switch count
SB0009
Clear loop switch count
SB000A
Clear transient transmission
errors
SB000A
Clear transient transmission
errors
SB000B
Transient transmission error
area setting
—
—
—
Delete the sequence program
for the corresponding part.
SB0011
Data link operation designation
—
—
SB000F
Minor error clear
—
—
SB0014
Remote sub-master station
switching command
—
—
SB0018
System switching monitoring
time setting valid flag
—
—
SB0020
Module status
SB0020
Module status
None
SB0040
Network type (host)
SB0040
Network type (own station)
SB0041
Host station's redundant
function support information
SB0041
Host station's redundant
function support information
None
SB0042
Power supply status of host
SB0042
Power supply status of host
None
SB0043
Online switch (host)
SB0043
Online switch (own station)
None
SB0044
Station setting (host)
SB0044
Station setting (own station)
Summary of Contents for QJ71GP21-SX
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