Option Units; What Are Option Units; Expansion I/O Board; About Expansion I/O Board - Epson RC180 Manual

Setup & Operation 12. Option Units

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.)

12.2.2 Board Configuration (Expansion I/O)

Board Appearance
CN1
CN4
CN2
72
Input Bit #
0 to 23
64 to 95
96 to 127
128 to 159
160 to 191
Switch and Jumper Configuration
Setup the DSW1 and DSW2.
st
1 board
SW4
SW3
SW2
SW1
DSW2
DSW1
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
Output Bit #
0 to 15 STANDARD I/O
64 to 95 The 1
96 to 127 The 2
128 to 159 The 3
160 to 191 The 4
CN4 is all open.
nd
2 board 3
SW4 SW4
SW3 SW3
SW2 SW2
SW1
SW1
SW8 SW8
SW7
SW7
SW6
SW6
SW5
SW5
SW4
SW4
SW3
SW3
SW2
SW2
SW1
SW1
Applicable Hardware
st
Expansion I/O board
nd
Expansion I/O board
rd
Expansion I/O board
th
Expansion I/O board
rd th
board 4 board
SW4
SW3
SW2
SW1
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
RC180 Rev.17