Manual

2-15

2 Connecting to CC-Link

Memory allocation example

This example shows how to make the following settings.

 Memory allocation

This example assumes the CC-Link master station has the following memory allocation

settings.

 Operation

This example performs the following measurements and control inputs.

• Measurement acquisition from OUT1 to OUT4

• Control inputs for OUT1 to OUT4

• Program change

• The data memory allocated in the PLC must be set larger area than the CC-Link communication

size.

• For example, to communicate X bytes from the PLC to the LK-CC100, and Y bytes from the LK-

CC100 to the PLC, allocate X bytes or more PLC data memory for output, and Y bytes or more for

input. Otherwise, an error will occur if not enough memory is allocated.

KEYENCE PLC Mitsubishi Electric

PLC

Device units

RX (remote input) refresh device R32000 X1000 Bits

RWw (remote register) refresh

device

DM10700 D1000 Words (16

bits)

RX (remote output) refresh device R33000 Y1000 Bits

RWr (remote register) refresh device DM10500 D2000 Words (16

bits)

Reference