Omron CPM1A Manual page 16

Functions
J CONFIGURATION
The CPM1A CPUs feature a compact, one-piece construction
that includes 10, 20, 30 or 40 built-in I/O terminals. Three output
models are available: Relay outputs, sinking (NPN) transistor
output and sourcing (PNP) transistor output.
Expansion
Up to three Expansion I/O Modules can be connected to a
30-point or 40-point CPU to add an extra 8 or 20 I/O points for
each, for a maximum of up to 100 I/O points.
Dedicated I/O Modules
Up to 3 Analog I/O Modules or Temperature Sensor Input
Modules can be used with 30-point and 40-point CPUs. Each
analog I/O module provides 2 analog inputs and 1 analog output,
so a maximum of 6 analog inputs and 3 analog outputs can be
achieved by connecting 3 Analog I/O Modules. Each
Temperature Sensor Module provides two temperature sensor
inputs from either thermocouples or platinum resistance
thermometers. Up to 6 inputs can be connected.
J INTERRUPT INPUTS
There are two input interrupts in the CPM1A 10-point I/O CPU
and four in the 20-, 30-, and 40-point I/O CPUs. Input interrupts
are available in two modes. In addition to normal interrupt inputs,
the CPM1A has a counter mode that counts high-speed input
signals and triggers interrupts at fixed count multiples.
10 point I/O CPU
IR00003
IR00004
CPM1A-10CDj-j-V1
(10 I/O terminals)
CPM1A-30CDj-j-V1
(30 I/O terminals)
20, 30, and 40 point I/O CPU
IR00003
IR00004
IR00005
IR00006
Micro Programmable Controller
CPM1A-20CDj-j-V1
(20 I/O terminals)
CPM1A-40CDj-j-V1
(40 I/O terminals)
Application Example:
Cutting Metal Sheets to Specified Lengths
The proximity sensor detects the edge of a
metal plate to operate the cutter. Metal sheets
can be cut continuously to the specified
lengths at a high speed.
Cutter
Conveyor
Proximity
sensor
Input
interrupt CPM1A
CPM1A
Metal
sheets
Cutter
operation
signal
A--37