CS1D-II102D Omron, CS1D-II102D Datasheet - Page 156

• Manufacturer Part Number: CS1D-II102D
• Description: CS1D Dual IO Interface Unit
• Manufacturer: Omron

Specifications of CS1D-II102D

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

3-1-5
Duplex Initialization
Processing
Duplex CPU Units
Duplex Initialization
In Duplex Mode, duplex initialization is executed automatically at certain times
in order to synchronize the data in the active and standby CPU Units. The
duplex initialization is executed at times such as when the power is turned
ON, when operation is started, when transferring user programs or PLC Setup
data, etc.
By means of this duplex initialization, data is transferred from the active CPU
Unit to the standby CPU Unit and verified.
Duplex initialization is executed automatically at the following times.
During duplex initialization, the cycle time becomes longer than normal, as fol-
lows:
Active CPU Unit
When power is turned
ON
When the Initial Switch is
pressed
At the start of operation
When data is transferred
• During duplex initialization, the DPL STATUS indicator on the Duplex Unit
• During duplex initialization, the cycle time is temporarily extended.
• During duplex initialization, the mode is temporarily switched to Simplex
reason the standby CPU Unit previously failed (i.e., the reason for switch-
ing to Simplex Operation) or the time the switch was made, use A019 (rea-
sons for switching) and A020 to A022 (time of switching).
flashes green.
Mode. If an operation switching error occurs during this interval, operation
will not be continued.
Data
transfer
and
verification
Standby CPU Unit
When the power is turned ON while the Mode Setting
Switch is set to DPL.
When the Initial Switch is pressed while the Mode Setting
Switch is set to DPL.
When operation is started while the Mode Setting Switch
is set to DPL (i.e., moving from PROGRAM Mode to RUN
or MONITOR Mode).
When a user program is transferred to the active CPU
Unit.
When PLC Setup data is transferred to the active CPU
Unit.
When I/O tables are created at the active CPU Unit.
When CPU Bus Unit system settings are written to the
active CPU Unit.
When online editing is executed at the active CPU Unit.
When Timer/Counter set values are changed at the active
CPU Unit.
Section 3-1
121