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MELSEC-Q
7 PROGRAMMING
7.3 Extended Service Mode (MODE E) Using FROM/TO Instruction
The following shows the program example used when the I/O data is read/written
using the FROM/TO instruction in the Extended service mode (MODE E).
Initial setting
Slave error
information
cancel area
setting
Trouble no
information
time setting
Communication
trouble area
type (fixed type)
Read of input
start address
Transmission of
input start address
to Z0
Read of output
start address
Transmission of
output start
address to Z1
Initial output data
write
Communication
start
Normal
communication
Input area read
Not required if the initial setting is not changed.