Yaskawa JAPMC-MC2303-E User Manual

Page 77

5.3 FL-net Data Communication

5.3.1 Cyclic Transmission

5-10

( 5 ) Assignment of I/O Register and Common Memory

The FL-net common memory function reads data from or writes it in each node area assigned for the CPU module I/O
registers (IW register, OW register). The 262IF-01 Module uses the engineering tool MPE720 for I/O register assign-
ment and defines the following four items.

• Node number
• Leading address and size of I/O registers
• Address and size of FL-net common memory area 1
• Address and size of FL-net common memory area 2

The following figure shows an assignment example of the FL-net common memory and I/O registers.
The local node areas 1 and 2 serve as the output register (OW) dedicated to sending, and other node areas 1 and 2 as the
input register (IW) dedicated to receiving.

The I/O registers (IW register, OW register) are defined as a continuous area consisting of areas 1 and 2, and are filled
starting with area 1. In link assignment definition, it is allowed to define only area 1 or area 2.

Set by Transmission Parameters
Tab Page

0000

0004

00100012

051

IW1000OW1004 IW100A

IW100C

IW1200

OW123C

IW1246

IW1264

IW31FF

6 words

0000

0060

0100

0070

8191

Area 1

Area 2

10 words

㧦Local node (OW register)

㧦Other node (IW register)

FL-net common memory
(Set by Link Assignment
Tab Page)

Node number 1 (input)

Node number 2 (output)

Node number 4 (input)

Node number 1 (input)

Node number 2 (output)

Node number 4 (input)

Node number 1 (input)

Node number 2 (output)

Node number 4 (input)

Common memory area 1 size

(variable in a range from

0 to 200H)

Common memory area 2 size (variable in a range from 0 to 2200H)

(I/O ending register number

− common memory area 1 size)

CPU Module I/O register