Datasheet

CJ1 series CPU Units 167
Programmable
Controllers
Various Forms of Protection Provide Better Security
Conceal Intellectual Property Contained in Programs (Unit Ver. 2.0 or Later)
Password Read Protection for Tasks
(CX-Programmer Ver. 4.0 or Higher)
Specific tasks (programs) can be set to prohibit reading unless the cor-
rect password is input.
This function enables concealment of intellectual property contained in
programs. The overwrite prohibit function also protects programs con-
cealing intellectual property from being carelessly overwritten.
Prevent Leakage of Intellectual Property (Unit Ver. 2.0 or Later)
Prohibit/Allow File Memory Program File Creation
(CX-Programmer Ver. 4.0 or Higher)
In addition to UM read protection and task read protection, user pro-
grams can also be protected from being illegally transferred to a Mem-
ory Card. This function enables complete read protection of programs
in the PLC and prevents leakage of intellectual property.
Write Protection from Specific Nodes through Networks (Unit Ver. 2.0 or Later)
CPU Unit FINS Write/Protection through Networks (CX-
Programmer Ver. 4.0 or Higher)
Specific nodes can be prohibited from writing to other nodes on the
network. Data transmissions through the network are monitored, pre-
venting data being carelessly written to the PLC, and preventing prob-
lems in the system.
Increased Security
Task 1
Task 2
Task 3
Task 2 cannot be read without a password.
Intellectual property
is protected from
unauthorized access.
CX-Programmer
×
Read protection
Write protection
Read protection
Data transfer not permitted.
CX-Programme
r
Memor
y
Card
Can be
read
Can be
read
Can be
written
Cannot
be written
POWER
PA205R
DC24V
AC240V
OUTPUT
RUN
INPUT
AC100-240V
L2/N
L1
CONTROLLER
CJ1G-CPU44
SYSMAC
PROGRAMMABLE
ERR/ALM
RUN
COMM
INH
PRPHL
OPEN
PERIPHERAL
BUSY
MCPWR
PORT
Y201-EN2-03.book Seite 167 Donnerstag, 30. März 2006 1:52 13