CS1D-BC042D Omron, CS1D-BC042D Datasheet - Page 380

• Manufacturer Part Number: CS1D-BC042D
• Description: CS1D Dual CPU Exp
• Manufacturer: Omron

Specifications of CS1D-BC042D

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Computing the Cycle Time
4: I/O Refreshing
5: Peripheral Servicing
Basic I/O Units
Special I/O
Units
CPU Bus Units
Inner Boards
(Single CPU
Systems or Pro-
cess-control
CPU Units only)
Services events for Special I/O Units.
Note Peripheral servicing does not
Services events for CPU Bus Units.
Note Peripheral servicing does not
Services events for peripheral ports.
Services RS-232C ports.
include I/O refreshing.
include I/O refreshing.
Details
Basic I/O Units are refreshed. Out-
puts from the CPU Unit to the I/O
Unit are refreshed first for each
Unit, and then inputs.
Words allocated in CIO Area
Words allocated in CIO and DM
Areas
Unit-specific
data
Words allocated in Inner Board
Area
Unit-specific data
Details
Data links for Con-
troller Link and
SYSMAC LINK
Units, DeviceNet
remote I/O for CS-
series DeviceNet
Units, send/receive
data for protocol
macros, and
socket services for
specific control bits
for Ethernet Units
If a uniform peripheral servicing time
hasn’t been set in the PLC Setup for this
servicing, 4% of the previous cycle’s
cycle time (calculated in step (3)) will be
allowed for peripheral servicing.
If a uniform peripheral servicing time has
been set in the PLC Setup, servicing will
be performed for the set time. At least
0.1 ms, however, will be serviced whether
the peripheral servicing time is set or not.
If no Units are mounted, the servicing
time is 0 ms.
If a uniform peripheral servicing time
hasn’t been set in the PLC Setup for this
servicing, 4% of the previous cycle’s
cycle time (calculated in step (3)) will be
allowed for peripheral servicing.
If a uniform peripheral servicing time has
been set in the PLC Setup, servicing will
be performed for the set time. At least
0.1 ms, however, will be serviced whether
the peripheral servicing time is set or not.
If the ports are not connected, the servic-
ing time is 0 ms.
Processing time and fluctuation cause
I/O refresh time for each Unit
multiplied by the number of
Units used
I/O refresh time for each Unit
multiplied by the number of
Units used
I/O refresh time for each Unit
multiplied by the number of
Units used
Inner Board I/O refresh time
Processing time and
fluctuation cause
Section 9-4
345