271
Cycle Time/High-speed Processing Section 6-1
The following table shows the corresponding settings when using a Program-
ming Console.
Improving Refresh Response for CPU Bus Unit Data
This function is supported only by CS1-H, CJ1-H, CJ1M, or CS1D CPU Units.
Normally, data links and other special data for CPU Bus Units are refreshed
along with the CIO and DM Area words allocated to the Units during the I/O
refresh period following program execution.
The following table lists some example of special data for CPU Bus Units.
The following functions can be used to improve the refresh response for spe-
cial CPU Bus Unit data
• Reducing the cycle time by using parallel processing mode or high-speed
instructions (Parallel processing mode is not supported by CS1D CPU
Units for Duplex-CPU Systems.)
• Executing DLNK(226) to refresh specific CPU Bus Units by specifying
their unit numbers (DLNK(226) can be used more than once in the pro-
gram.)
Note The CS1G/H-CPU@@ (-V1) and CJ1@-CPU@@ CPU Units do not support
this function.
Programming
Console
address
Name Setting Default
+226 to 231,
bits 0 to 15
Cyclic Refreshing Disable Bit
for Special I/O Unit 0
0: Enabled
1: Disabled
0 (Enabled)
:::
Cyclic Refreshing Disable Bit
for Special I/O Unit 95
0: Enabled
1: Disabled
0 (Enabled)
Units Special data
Controller Link Units and
SYSMAC LINK Units
Controller Link and SYSMAC LINK data links (includ-
ing automatically and user-set links)
CS/CJ-series DeviceNet
Units
DeviceNet remote I/O communications (including
fixed allocations and user-set allocations)
To Next Page
Loading...
