6
PARAMETER SETTINGS
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OVE
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P
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OCEDURES AND
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P
ARAMETER
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CC
IE Control
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ITY
6.3 Network Range Assignment Settings
6.3.1 LB/LW settings
6
- 10
6.3.1
LB/LW settings
Set each station's send range in LB/LW to use it for the cyclic transmission.
(1) Setting "LB/LW settings (1)" and "LB/LW settings (2) separately"
LB/LW settings can be divided into "LB/LW settings (1)" and "LB/LW settings (2)".
Normally, setting only "LB/LW settings (1)" is enough for LB/LW communication.
Set "LB/LW settings (2)" in the following cases:
• When extending each station's send range without changing existing
assignments
• When intentionally dividing each station's send range into two (e.g. within and
outside the link refresh range)
POINT
• If "LB/LW settings (2)" is used, link scan time will be longer compared to
using "LB/LW settings (1)" only.
• The LB/LW points for each station must be set to the maximum link points
or less which are total points of "LB/LW settings (1)" and "LB/LW settings
(2)".
(2) Extending the maximum link points for each station
Select extension mode in network type of parameter setting, the maximum link points
for each station can be extended.
Section 6.1 Parameter Settings (Board Information Settings)
(3) Assuring 32-bit data integrity
If settings are made with the following conditions 1) to 4) satisfied, 32-bit data integrity
will be automatically assured.
1) The start device No. of LB is a multiple of 20H.
2) The points assigned per station in LB is a multiple of 20H.
3) The start device No. of LW is a multiple of 2.
4) The points assigned per station in LW is a multiple of 2.
For details of the 32-bit data assurance, refer to the following manual.
CC-Link IE Controller Network Reference Manual
Network type
Max. link points per station for LB/LW
CC IE Control (Control station)
LB:16K points, LW: 16K points
CC IE Control (Normal station)
CC IE Control Extended mode (Control station)
LB:32K points, LW:128K points
CC IE Control Extended mode (Normal station)