CJ1G-CPU4

@P

3

Specifications

Item

Specification

Product name

Loop-control CPU Unit

Model numbers

CJ1G-CPU

@@P

Data exchange

method with

CPU Unit

Words in Auxiliary

Area in CPU Unit

Loop Controller

→ CPU Unit:

Operation status, PV error input ON, MV error input ON, occurrence of execution error, function block

database error, cold start ready for hot start command, flash memory backup in progress, function

blocks changed, etc.

CPU Unit

→ Loop Controller:

Hot/cold start command at power ON

User allocations in

I/O memory

User memory tables used to allocate function block ITEM data for user-specified memory in the CPU

Unit (CIO, Work, HR, DM, or EM Area (bank 0, but also banks 1 to 12 for Ver. 3.0 or later)).

EM Area (bank

number)

allocations (for

SCADA software)

HMI function used allocate function block ITEM data for Control, Operation, External Controller, and

System Common blocks in the specified bank of the EM Area in the CPU Unit.

The real PV in calibration mode can be allocated (Ver. 3.0 or later).

Setting

None

Indicators

Loop-control CPU Units: 2 LEDs (RUN and ready)

Super capacitor backup data

All function block data (including Step Ladder Program commands), stored error log data

Super capacitor backup time

CJ Series (CJ1G-CPU

@@P): 5 min at 25°C (Backed up by the Battery in the CPU Unit.)

Data stored in flash memory

Function block data

Backup from RAM to flash memory

Executed from CX-Process Tool (as required).

Recovery from flash memory to RAM

Automatic at power ON if startup mode is set for a cold start, or executed from CX-Process Tool (as

required).

Influence on CPU Unit cycle time

Loop-control CPU Unit (CJ1G-CPU

@@P): 0.8 ms max. (Depends on function block contents.)

Current consumption (supplied from

Power Supply Unit)

Loop-control CPU Unit: 1.06 A at 5 VDC

Note: Increased by 150 mA when NT-AL001 Link Adapter is used.

Standard accessories

None