User`s manual

253

CHAPTER 11 DATA COMMUNICATIONS USING USER FRAMES

11.1 Overview of Data Communication Procedure

The following is an overview of the procedure when performing data communication between the opposite device and

programmable controller CPU using a user frame.

*1  User's Manual (Basic),  Page 220, CHAPTER 9

*2 Page 267, Section 11.2.4

*3 Page 254, Section 11.2.1, Page 262, Section 11.2.2

*4 Page 286, Section 11.4

Start

Switch setting by GX Developer.

Initial setting by GX Configurator-SC

• Register to the Q series C24 Flash ROM.

• Register to the Q series C24 buffer memory.

(When only default registration frame used)

(When registering user frames)

Set user frame No., etc. to receive user frame

designation area

(addresses ADH to B5H, 14DH to 155H, 2020H

to 2027H, 2120H to 2127H) of the Q series

C24 buffer memory

Must be set by GX Configurator-SC

after debugging is completed.

(When receiving data)

Start data communications

(Reception)(Transmission)

Read receive data

Designate user frame No. to

transmission user frame designation

area (address B7H to 11DH,157H to 1BDH)

of the Q series C24 buffer memory.

Designate transmission data

(arbitrary data area in transmit message)

to transmit area of the Q series C24

buffer memory.

Data transmission

……