Program Examples - Mitsubishi MELSEC Q Series Handbook

3
ETHERNET INTERFACE MODULE REPLACEMENT

3.9 Program Examples

The following shows a program example at transition from the A/AnS series to the Q series.
When applying the program example introduced in this section to an actual program,
sufficiently study if there will be any problem in control on the target system.
(1) System configuration
The following shows the system configuration used in the program example in this section.
(a) A/AnS series
A3UCPU For connection No.1 fixed buffer transmission
(b) Q series
For connection No.1 fixed buffer transmission
Q25HCPU
*1 The Ethernet interface module is mounted on slot 0 of the base module.
The I/O signals of the Ethernet interface module shall be X/Y0 to X/YF.
3
- 25
*1
Ethernet interface module
*1
Ethernet interface module
External device
Transmission request
signal (Y0)
External device
BUFSND instruction