CS1D-IC102D Omron, CS1D-IC102D Datasheet - Page 389

• Manufacturer Part Number: CS1D-IC102D
• Description: CS1D Dual IO Control Unit
• Manufacturer: Omron

Specifications of CS1D-IC102D

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

Computing the Cycle Time
9-4-5
9-4-6
354
Online Editing Cycle Time Extension
(Duplex CPU Systems Only)
Affects of Duplex and Simplex Operation on the Cycle Time
Note
When online editing is executed from a Programming Device (such as Pro-
gramming Console or CX-Programmer) while the CPU Unit is operating in
MONITOR mode to change the program, the CPU Unit will momentarily sus-
pend operation while the program is being changed. The period of time that
the cycle time is extended is determined by the following conditions.
The time increase for online editing is affected very little by the size of the
largest program in the tasks.
If the maximum program size for each task is 64 Ksteps, the online editing
cycle time extension will be as follows (See note.):
When editing online, the cycle time will be extended by the time that operation
is stopped.
1. When there is one task, online editing is processed all in the cycle time fol-
2. The above cycle time extensions assume that a lot of instructions requiring
If operation switches from Duplex Mode to Simplex Mode, processing to syn-
chronize the active and standby CPU Units will no longer be performed,
resulting in a shorter cycle time. The more instructions requiring synchroniza-
tion (such as IORF, DLNK, IORD, IOWR, PID, RXD, FREAD, and FWRIT) are
used, the greater the difference between Duplex Mode and Simplex Mode
operation will be (with Duplex Mode having the longer cycle time). Confirm
that the system will operate correctly and safely even for the cycle time in both
Simplex and Duplex Modes.
Cycle time
CS1D-CPU6@H CPU Units
for Duplex CPU Systems
CS1D-CPU6@S CPU Units
for Single CPU Systems
CS1D-CPU4@S CPU Units
for Single CPU Systems
• Number of steps changed
• Editing operations (insert/delete/overwrite)
• Types of instructions used
Process name
lowing the cycle in which online editing is executed (written). When there
are multiple tasks (cyclic tasks), online editing is separated, so that for n
tasks, processing is executed over n to n 2 cycles max.
time are being used in the program. The cycle time extension would be as
follows for most programs:
CS1D CPU Units: 12 ms max.
CPU Unit
(1) + (2) + (3) + (4) + (5)
Calculation
Maximum: 55 ms, Normal: 8 ms
Maximum: 55 ms, Normal: 8 ms
Maximum: 75 ms, Normal: 11 ms
Increase in cycle time for online editing
2.52 ms
Programming
Device
With
Processing time
2.42 ms
Programming
Section 9-4
Without
Device