CPU

Model

CPU286-2Q DC/DC/DC

Physical characteristic

Dimensions(W x H x D)(mm)

196×80×62

Power consume

12W

Memory

Program memory size

Data memory

10K

Back up (by Flash, no need battery)

keep over 10 years

I/O

Local digital inputs

14 inputs

Local digital outputs

10 outputs

Digital I/O image size

256(128 inputs/128 outputs)

Analog I/O image size

64(32 inputs/32 outputs)

expansion modules allowed (Max)

7 modules

High-speed counters

6 counters total

Single phase

6 at 200KHz

Two phase

4 at 100KHz

Pulse outputs

4 axis ×200KHz

General

Timer

Total number：256（1ms:4；10ms:16；100ms:236）

Counters

256

Internal memory bits stored on power down

256

Time interrupts

2 with1ms resolution

Edge interrupts

4 up and/or 4 down

Analog adjustment

2 with 8 bit resolution

Boolean execution speed

0.08µs per instruction

Real Time Clock

Built-in

Ports

3 RS-485 ports (within1 PPI/Free port,1 free port)

PPI Baud Rates

9.6，19.2 and 187.5 Kbaud

Freeport Baud Rates

1.2kbaud to 115.2Kbaud

Max. cable length per segment

With isolated repeater：1000 m up to 187.5kbaud, 1200 m up to 38.4kbaud

Without isolated repeater: 50 m

Max. number of stations

32 per segment, 126 per network

Max. number of masters

32

Peer to peer（PPI Master Mode）

Yes

Power

Input voltage

20.4 to 28.8 VDC

Input current

110mA while CPU only at 24 VDC

700mA while Max. load at 24 VDC

Inrush current

12A at 28.8 VDC

Isolation(field to logic)

Not isolated

Hold up time（loss of power）

10ms at 24 VDC

Sensor voltage

L+ minus 5 V

Current limit

1.5A peak，thermal limit non-destructive

Ripple noise (sensor to logic)

Derived from input power

Isolation (sensor to logic)

Not isolated

CPU Digital Input Specifications

Built-in digital input

24

Input type

PNP/NPN

Rated voltage

24 VDC at 4mA

Max. continuous  permissible voltage

30 VDC

Surge voltage

35 VDC for 0.5s

Logic “1”  voltage range

15 to 30 VDC

Logic “0”  voltage range

0 to 5 VDC

Input delay

Selectable (0.2 to12.8ms)

Connection of 2-wire proximity sensor (Bero)

Premissible leakage current (Max.)

1mA

Isolation (field to logic)

Yes

Optical galvanic

500 VAC for 1minute

Isolation groups

Refer to Wiring diagram

Cable length Max.

Shielded

500m normal inputs, 50m HSC inputs

unshielded

300m normal inputs

CPU Digital Output Specifications

Built-in outputs

16 

Output type

Solid State-MOSFET(Sourcing)

Rated voltage

24 VDC

Voltage range

5.0 to 28.8 VDC

Surge current (Max.)

8A for 100ms

Logic “1”  (Min)

0.5V

Logic “0”  (Max)

VCC less 0.5V

Rated current per point（Max.）

0.5A

Rated current per common（Max）

4A

Lamp load (Max)

3.5W

Pulse frequency (Max.)

4 axis：200KHz (Q0.0 ~ Q0.7),1KHz（other）

Lifetime mechanical cycles

-

Lifetime contacts

-

Order number

UN 286-2AM23-0XB0