Expansion I/O Board - Optional; Expansion I/O Board - Epson RC420 Manual

Setup & Operation 7.1 Expansion I/O Board (Expansion I/O Board - Optional)

7. Expansion I/O Board - Optional

7.1 Expansion I/O Board

Install an expansion I/O board in an ISA slot in the Controller when extra inputs or
outputs are desired.
Each additional expansion I/O board provides 32 inputs and 32 outputs. The number of
I/Os that can be expanded is subject to the number of ISA slots available in the type of
Controller used.
The input and output bit #s are assigned as follows.
The types of the optional expansion I/O board are listed below.
Protected Expansion
I/O board
Protected Expansion
I/O board
Expansion I/O
board
■ Use the PNP-type of protected Expansion I/O Board for CE conformance.
■ Be sure to wire the output circuit properly. Especially the expansion I/O board
has no protection circuitry for short-circuit and reverse-connection. Improper
wiring may cause malfunction of the parts on the board and then improper
CAUTION
function of the robot system.
RC420 Rev.9
Input Bit #
0 to 15
48 to 79
80 to 111
. .
.
Input/Output
Board Name
Output Bit #
0 to 15
48 to 79
80 to 111
. .
.
Output Circuit
Type
NPN Hybrid IC SEP007
PNP Hybrid IC SEP008
Transistor array and photo
NPN
coupler
Applicable Hardware
Controller Standard I/O
The 1st Expansion I/O board
The 2nd Expansion I/O board
. .
.
Overcurrent
Protection
Available
Available
Not Available
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