APPENDIX

MELSEC-Q

Appendix 9.8 When performing initial setting

The following program example performs initial setting using the REMTO instruction. Execute this program when changing the default values of the Q series C24 buffer memory.

Refer to Chapter 8 when changing the default values of the Q series C24 buffer memory using GX Configurator-SC.

(1) Program conditions

The following program performs initial setting on the CH1 side when the initial setting command (X1027) turns ON.

(a) Devices used:

• Initial setting command...........................................................

X1027

Initial setting command pulse signal ......................................

M10

• Initial setting command 2........................................................

M11

• Initial setting command 3........................................................

M12

• Completion device for REMTO instruction.............................

M100 to105

• Normal/abnormal completion flag for REMTO instruction.....

M200 to 203

• Word/byte units designation ...................................................

D0

• Buffer memory head address designation for on-demand

 

 

 

transmission............................................................................

D1

• Buffer memory length designation for on-demand

 

 

 

transmission............................................................................

D2

• Transmission buffer memory head address designation ......

D3

• Transmission buffer memory length designation...................

D4

• Receive buffer memory head address designation...............

D5

• Receive buffer memory length designation ...........................

D6

(b) Buffer memory settings used in this example

 

 

 

 

 

 

Address Decimal (Hexadecimal)

Name

 

Setting

CH1

 

 

value

 

 

 

150 (96H)

 

Word/byte units designation

 

Byte units

160 (A0H)

 

Buffer memory head address designation for on-demand function

 

0400H

 

designation

 

 

 

 

 

161 (A1H)

 

Data length designation for on-demand function designation

 

0000H

162 (B2H)

 

Transmission buffer memory head address designation

 

0C00H

163 (A3H)

 

Transmission buffer memory length designation

 

0400H

166 (A6H)

 

Receive buffer memory head address designation

 

0600H

167 (A7H)

 

Receive buffer memory length designation

 

0200H

App. - 46

App. - 46