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Components and Switch Settings
Section 2-1
18
Note
The Machine Number determines which words in the CPU Unit’s Special I/O Unit
Area (CIO 2000 to CIO 2959 and DM 20000 to DM 29599) are allocated to the
Counter Unit. The CJ1W-CTL41-E Unit occupies 4 Special I/O Unit Areas, i.e.
the next Special I/O Unit Machine Number must at least be set to this Unit’s
Machine Number plus 4. The Machine Number can only be set between 00 and
92. The Machine Numbers 93, 94 and 95 can not be set.
Note
1. If two or more Special I/O Units are assigned the same Machine Number, a fatal
error “Unit No. Duplication Error” (in the PLC-CPU) will be generated (A40113
will turn ON) and the PLC will not operate.
2. The Counter Unit is allocated the words for 4 Units. If you use Special I/O Units
that are allocated more than 100 DM-words and 10 CIO-words, like the CJ1W-
CTL41-E Counter Unit, you should make sure that no memory overlapping
occurs. If the Machine Number for the Counter Unit is set to ‘n’ the Machine
Numbers 'n+1' through 'n+3' cannot be used on other units. In case two or more
Special I/O Units have set Machine Numbers causing an overlap of allocated
memory, a fatal error “Unit No. Duplication Error” (in the PLC-CPU) will be gen-
erated (A40113 will turn ON) and the PLC will not operate.
3. Besides the memory that is allocated to the Counter Unit in the Special I/O Unit
DM Area, for every Counter additional memory can be allocated in DM/EM.
This extra allocated amount of memory is used to make the Counter Specific
Settings related to Range or Comparison Mode. Memory is allocated by spec-
ifying an Indirect Address for every Counter in the Special I/O Unit DM Area.
For details about Indirect Addressing refer to section 4-2-2
.
Switch
Setting
Machine
Number
I/O Refresh Data Area
Addresses
Special I/O Unit DM Area
Addresses
0
#0
CIO 2000 to CIO 2039
D20000 to D20399
1
#1
CIO 2010 to CIO 2049
D20100 to D20499
2
#2
CIO 2020 to CIO 2059
D20200 to D20599
3
#3
CIO 2030 to CIO 2069
D20300 to D20699
4
#4
CIO 2040 to CIO 2079
D20400 to D20799
5
#5
CIO 2050 to CIO 2089
D20500 to D20899
6
#6
CIO 2060 to CIO 2099
D20600 to D20999
7
#7
CIO 2070 to CIO 2109
D20700 to D21009
8
#8
CIO 2080 to CIO 2119
D20800 to D21199
9
#9
CIO 2090 to CIO 2129
D20900 to D21299
10
#10
CIO 2100 to CIO 2139
D21000 to D21399
…
…
…
…
n
#n
CIO 2000 + (n * 10) to
CIO 2000 + (n * 10) + 39
D 20000 + (n * 100) to
D 20000 + (n * 100) + 399
…
…
…
…
92
#92
CIO 2920 to CIO 2959
D29200 to D 29599
93
Cannot be set
Not Applicable
Not Applicable
94
95