Epson RC180, Manual

Page: 84 / 264

Setup & Operation 12. Option Units
72 RC180 Rev.17
12. Option Units
12.1 What are Option Units?
The option units contain option boards for RC180.
Up to two units can be installed on one Controller. Up to four option boards can be
installed.
The types of the option boards are as follows.
12.2 Expansion I/O Board
12.3 Fieldbus I/O Board
12.4 RS-232C Board
12.2 Expansion I/O Board
12.2.1 About Expansion I/O Board
Install an option unit in the Controller when extra inputs or outputs are desired.
Each additional expansion I/O board provides 32 inputs and 32 outputs.
CN1: 16 inputs / 16 outputs
CN2: 16 inputs / 16 outputs
The number of I/Os that can be expanded is maximum 4 boards and 128 inputs and
outputs.
The input and output bit numbers are assigned as follows. (Bit number is assigned from
CN1.)
Input Bit # Output Bit # Applicable Hardware
0 to 23 0 to 15 STANDARD I/O
64 to 95 64 to 95 The 1
st
Expansion I/O board
96 to 127 96 to 127 The 2
nd
Expansion I/O board
128 to 159 128 to 159 The 3
rd
Expansion I/O board
160 to 191 160 to 191 The 4
th
Expansion I/O board
12.2.2 Board Configuration (Expansion I/O)
Board Appearance Switch and Jumper Configuration
CN1
CN2
DSW2
DSW1
CN4
Setup the DSW1 and DSW2. CN4 is all open.
1
st
board 2
nd
board 3
rd
board 4
th
board
SW4
SW3
SW2
SW1
DS
W
2
ON
123
4
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
123
45
67
8
ON
DS
W
1
CN4
1
2
9
10
SW4
SW3
SW2
SW1
DS
W
2
ON
123
4
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
1234567
8
ON
DS
W
1
CN4
1
2
9
10
SW4
SW3
SW2
SW1
DS
W
2
ON
123
4
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
123
45
67
8
ON
DS
W
1
CN4
1
2
9
10
SW4
SW3
SW2
SW1
DS
W
2
ON
123
4
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
1234567
8
ON
DS
W
1
CN4
1
2
9
10