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16-15
16 Other Functions
CP2E CPU Unit Software User’s Manual(W614)
16-4 Secu
rity Fu
nction
s
16
16-4-2 Protect
ing Prog
ra
m Ex
ec
ution Using
the Lot Numb
er
z
Auxiliary Area Bits Related to Password Protection
z
Overview
The lot number is stored in words A
3
10 and A
3
11 of the CP2E CPU Unit
’
s Auxiliary Area. These
words generate a fatal error to prevent a user program from running on a PLC with a different pro-
duction lot number. In addition, by setting passwords, you can prohibit loading of programs, and
thereby prohibit copying of user programs. The lot number cannot be changed by the user.
•
The upper digits of the lot number are stored in A
3
11 and the lower digits are stored in A
3
10, as
shown below.
•
X, Y, and Z in the lot number are converted to 10, 11, and 12, respectively, in A
3
10 and A
3
11.
z
Programming Example
(1) The following instructions will create a fatal error to prevent the program from being
executed when the lot number is not 23905.
Name
Bit
address
Description
Status after
mode
change
Startup
hold
settings
UM Read Protection
Status
A99.00
Indicates whether or not the whole ladder pro-
grams are read-protected.
OFF: UM read protection is not set.
ON: UM read protection is set.
Hold
Hold
16-4-2 Protecting Program Execution Using the Lot Number
y
y
m
d
m
d
d d m y y
Lot number (5 digits)
A
3
11
A
3
10
ANDL(610)
A
3
10
#00FFFFFF
D0
FALS(007)
1
D100
A200.11 (First Cycle Flag)
<> L(
3
06)
D0
#05092
3
Summary of Contents for SYSMAC CP Series
Page 3: ......
Page 32: ...1 Overview 1 4 CP2E CPU Unit Software User s Manual W614 ...
Page 44: ...3 CPU Unit Operation 3 8 CP2E CPU Unit Software User s Manual W614 ...
Page 116: ...6 I O Allocation 6 8 CP2E CPU Unit Software User s Manual W614 ...
Page 144: ...7 PLC Setup 7 28 CP2E CPU Unit Software User s Manual W614 ...
Page 170: ...10 Interrupts 10 14 CP2E CPU Unit Software User s Manual W614 ...
Page 200: ...11 High speed Counters 11 30 CP2E CPU Unit Software User s Manual W614 ...
Page 272: ...12 Pulse Outputs 12 72 CP2E CPU Unit Software User s Manual W614 ...
Page 278: ...13 PWM Outputs 13 6 CP2E CPU Unit Software User s Manual W614 ...
Page 460: ...18 Programming Device Operations 18 28 CP2E CPU Unit Software User s Manual W614 ...
Page 576: ...Revision 2 CP2E CPU Unit Software User s Manual W614 ...
Page 577: ......