CPM2C datasheet(2/20 Pages) OMRON

2 / 20 page

System Configuration

Configuration

The individual Units of the CPM2C system are plugged in to one

another and secured using 2 locking sliders. The system must be

mounted on DIN rail.

Communication interfaces

The CPM2C has one peripheral and one RS−232C interface on a

miniature peripheral socket. They can both be accessed via the

CPM2C−CN111 adapter cable.

For other adapter cables, see page 61.

Both ports can be used simultaneously.

Miniature peripheral

and RS−232C port

24−pin I/O female

connector

DeviceNet

connection

CompoBus/S

connection

I/O terminal block

Expansion of the CPM2C

Up to five Expansion Units can be connected to CPM2C CPU Units,

and up to three Expansion Units to CPM2C−S100C/S110C Units. Only

a total of four of the CPM2C−MAD11 and CPM2C−TS_ Expansion Units

can be connected.

Interrupt input

Two or four of the normal transistor inputs can also be configured as

interrupt inputs. Various interrupt modes are available.

Pulse outputs

Only CPM2C CPU Units with transistor outputs provide a pulse output

function. These pulse outputs are to be subtracted from the number of

available standard outputs.

CPU

DIN rail

Expansion Units

High–speed counter inputs

If the high−speed counter function is required, three of the normal

transistor inputs are occupied. The high−speed counter input can be

used to connect an encoder with phases A, B and Z, for example.

– Differential phase mode

The maximum input frequency is 5 kHz.

Each upward and each downward edge is counted, i.e. at 5 kHz,

20,000 pulses per second are counted.

The Z phase can be used as a reset signal.

Phase A

Phase B

12345 6 7 81

Counting pulse

Incrementing

Decrementing

– Pulse/direction mode

The maximum counting frequency is 20 kHz.

Phase A

(direction)

Phase B

(pulse)

Counting pulse

Incrementing

Decrementing

– Up/down count mode

The maximum counting frequency is 20 kHz.

Phase A

(count down)

Phase B

(count up)

123

Counting pulse

Incrementing

Decrementing

Compact PLC Series CPM2C

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