CS1D-DPL02D Omron, CS1D-DPL02D Datasheet - Page 54

• Manufacturer Part Number: CS1D-DPL02D
• Description: CS1D Dual IO Exp
• Manufacturer: Omron

Specifications of CS1D-DPL02D

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

Specifications
Duplex CS1D
CPU Units
(Supported
only in Duplex
CPU Sys-
tems)
Item
Duplex Mode
Operation of the two
CS1D CPU Units in
Duplex Mode
Operation switching
errors
Duplex errors
Automatic recovery
to duplex operation
Hardware condi-
tions for the two
CS1D CPU Units in
Duplex Mode
Software conditions
for the two CS1D
CPU Units in Duplex
Mode
CS1D CPU Unit
online replacement
A Duplex CPU System can be operated in either of the fol-
lowing two modes:
Duplex Mode (DPL)
The system operates with CS1D CPU Units and CS1D
Power Supply Units in duplex status.
Simplex Mode (SPL)
The system operates with just a single CS1D CPU Unit.
Hot standby method: One of the two CS1D CPU Units
actually controls operations, and the other is on standby
as a backup. The two CS1D CPU Units have the same I/O
memory, and parameters (PLC Setup, I/O tables, etc.),
and both run the same user’s program.
Their operation differ in the following points:
The active CPU Unit executes I/O refreshing and all event
servicing.
The standby CPU Unit handles file accessing (read only)
and FINS command execution event servicing (read only).
Power interruptions
(CPU operation set-
ting switch: NO
USE), CPU errors,
memory errors, pro-
gram errors, cycle
time overrun errors,
FALS executions,
fatal Inner Board
errors
Duplex bus errors
Duplex verification
errors
After operation has been switched from Duplex Mode to
Simplex Mode as a result of any of the operation switching
errors listed above, operation is automatically returned to
Duplex Mode when it is determined that the cause of the
error has been cleared. Automatic recovery to duplex
operation must first be enabled in the PLC Setup. (The
recovery can be repeated up to ten times.)
Identical models must be used for the two CS1D CPU
Units.
The same user program areas must be used.
The same parameter areas (PLC Setup, etc.) must be
used.
The same Inner Board data must be used (Process-con-
trol CPU Units only).
Only the functions that can be executed by both CPU
Units can be used (when the unit versions of the CPU
Units are not the same).
The CS1D CPU Unit where the error occurred can be
replaced online by turning OFF the power to only that Unit
(i.e., setting the CPU operation switch to NO USE).
Specifications
If any of the errors listed on the left
occur in the active CPU Unit, stop-
ping operation, the standby CPU
Unit automatically switches to active
status and takes over control. At the
same time, the mode is switched to
Simplex Mode. The CPU Unit where
the error occurred can be replaced
without stopping system operation.
Note A fatal Inner Board error
If either of the errors listed on the
left occurs in Duplex Mode, the
active CPU Unit remains the same
and operation is switched to Sim-
plex Mode.
applies only to Process-con-
trol CPU Units.
1-2-1 CS1D Duplex
Systems
3-1-1 Duplex CPU Sys-
tems
3-1-2 Errors Causing
Operation to Switch to
the Standby CPU Unit
3-1-3 Duplex Errors
3-1-4 Automatic Recov-
ery to Duplex Opera-
tion by Self-diagnosis
3-1-1 Duplex CPU Sys-
tems
3-1-1 Duplex CPU Sys-
tems
3-1-6 Duplex CPU
Units with Different Unit
Versions
11-3 Replacing a CPU
Unit
Reference
Section 2-1
19