Mitsubishi Electric L26CPU-BT User Manual page 308

(1) Master station program
Local station status confirmation
Control program
Control program of station number 1
Control program of station number 5
(2) Local station program
(a) Ver.1 compatible local station (station number 1) program
Confirmation of data link status
Control program
306
Station number 1 is faulty
Station number 5 is faulty
Control program using
data received from local
station of station No. 1
Program to generate
transmission data to local
station of station No. 1
Control program using data
received from local station
of station No. 5
Program to generate
transmission data to local
station of station No. 5
Local station is performing
data link
Control program using data
received from a master station
Program to generate send
data to the master station