77
Appendix E
System Configuration Chart
A K-type PC can be configured with a CPU Unit and one or more of the following Units: Expansion I/O Units,
Analog Timer Units, or an I/O Link Unit. All of these Units are connected in series with the CPU Unit at one
end. An I/O Link Unit, if included, must be on the other end (meaning only one I/O Link Unit can be used) and
an Analog Timer Unit cannot be used. The rest of the Units can be in any order desired.
There is a restriction in the number of Units which can be included. To compute the number of Units for this
restriction, add up all of the Units counting the C40K CPU Unit, C60K CPU Unit, C40K Expansion I/O Unit and
C60K Expansion I/O Unit as two Units each and any other Units as one Unit each. This total must be no more
than five.
The following table shows some of the combinations that can be used to achieve specific numbers of I/O
points. The numbers in the table indicate the number of Units of that size to be used as either the CPU or Ex-
pansion I/O Unit; any one of the Units can be the CPU Unit. This table does not include the C4P or C16P Ex-
pansion I/O Units, the Analog Timer Unit, or the I/O Link Unit, which can be used for greater system versatility
or special applications. Refer to the remaining tables in this section for other combinations.
I/O points
Count as 2
each
Count as 1
each
Total
In
Out
C60
_
(32/28)
C40
_
(24/16)
C28
_
(16/12)
C20
_
(12/8)
20
12
8
–––
–––
–––
1
28
16
12
–––
–––
1
–––
40
24
16
–––
–––
–––
2
–––
1
–––
–––
48
28
20
–––
–––
1
1
56
32
24
–––
–––
2
–––
60
32
28
1
–––
–––
–––
36
24
–––
–––
–––
3
–––
1
–––
1
68
40
28
–––
–––
1
2
–––
1
1
–––
76
44
32
–––
–––
2
1
80
48
32
–––
–––
–––
4
–––
1
–––
2
–––
2
–––
–––
1
–––
–––
2
84
48
36
–––
–––
3
–––
88
48
40
1
–––
1
–––
52
36
–––
–––
1
3
–––
1
1
1
96
56
40
–––
–––
2
2
–––
1
2
–––
100
56
44
1
–––
–––
2
1
1
–––
–––
I/O points
Count as 2
each
Count as 1
each
Total
In
Out
C60
_
(32/28)
C40
_
(24/16)
C28
_
(16/12)
C20
_
(12/8)
100
60
40
–––
–––
–––
5
–––
1
–––
3
–––
2
–––
1
104
60
44
–––
–––
3
1
108
60
48
1
–––
1
1
64
44
–––
–––
1
4
–––
1
1
2
–––
2
1
–––
112
64
48
–––
–––
4
–––
116
64
52
1
–––
2
–––
68
48
–––
–––
2
3
–––
1
2
1
120
64
56
2
–––
–––
–––
68
52
1
–––
–––
3
1
1
–––
1
124
72
52
–––
–––
3
2
–––
1
3
–––
128
72
56
1
–––
1
2
1
1
1
–––
132
76
56
–––
–––
4
1
136
76
60
1
–––
2
1
140
76
64
2
–––
–––
1
80
60
–––
–––
5
–––
144
80
64
1
–––
3
–––
148
80
68
2
–––
1
–––
Summary of Contents for SYSMAC C20K
Page 1: ...Cat No W147 E1 02B ...
Page 2: ...K type Programmable Controllers Installation Guide Revised August 1993 C20P C60K C60K C20P ...
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Page 8: ...x ...
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