94
CS1W-SRM21 Master Unit for CS-series PLCs
Section 4-2
I/O Allocations when Pin 1 is ON
When pin 1 is ON and node addresses IN0 to IN15 and OUT0 to OUT15 (up
to 128 inputs/128 outputs) are used, words are allocated to the Slaves for
each node number as shown in the following diagram.
Slave I/O and Corresponding Areas
Slave with 8 Inputs or 8 Outputs
The Slave is treated as one node number for output or input.
Slave with 16 Inputs or 16 Outputs
The Slave is treated as two node numbers for output or input, and allocated in
the same words as follows:
• When an odd node number has been set:
Uses node number setting
–
1 and node number setting
• When an even node number has been set:
Uses node number setting and node number s 1.
Output Slave 0
Output Slave 2
Output Slave 4
Output Slave 6
Output Slave 8
Output Slave 10
Output Slave 12
Output Slave 14
Input Slave 0
Input Slave 2
Input Slave 4
Input Slave 6
Input Slave 8
Input Slave 10
Input Slave 12
Input Slave 14
Active Output Slave Flags
Active Input Slave Flags
Active Output Slave Flags
Active Input Slave Flags
Output Slave 1
Output Slave 3
Output Slave 5
Output Slave 7
Output Slave 9
Output Slave 11
Output Slave 13
Output Slave 15
Input Slave 1
Input Slave 3
Input Slave 5
Input Slave 7
Input Slave 9
Input Slave 11
Input Slave 13
Input Slave 15
Output Slave Error Flags
Input Slave Error Flags
Output Slave Error Flags
Input Slave Error Flags
CIO 2000
CIO 2010
CIO 2020
CIO 2030
CIO 2040
CIO 2050
CIO 2060
CIO 2070
CIO 2080
CIO 2100
CIO 2110
CIO 2120
CIO 2130
CIO 2140
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
CIO 2090
Unit #0
Unit #2
Unit #4
Unit #6
Unit #8
Unit #1
Unit #3
Unit #5
Unit #7
Unit #10
Unit #12
Unit #14
Unit #11
Unit #13
First word
Unit #9
Slave allocations in Special I/O Unit Area
First word
First word + 1
First word + 2
First word + 3
First word + 4
First word + 5
First word + 6
First word + 7
First word + 8
First word + 9
First word + 10
First word + 11
First word + 12
First word + 13
First word + 14
First word + 15
First word + 16
First word + 17
First word + 18
First word + 19
Bits
Out-
puts
Inputs
Status
#7
#0
#7
#0
#7
#0
#7
#0
#15
#8
#15
#8
#15
#8
#15
#8
Unit #90
Unit #92
Unit #94
Unit #91
Unit #93
CIO 2900
CIO 2910
CIO 2920
CIO 2930
CIO 2940
Can not use
Unit #95
Special I/O Unit Area in Master PLC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
0
0
Bits
First word + 2
Bits 7
Output Slave 4
Bits 7
Output Slave 5
Set to Node No. 5
8-point Output Slave
8 outputs