Table of Contents
Advertisement
8. COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
(5)
Command
Used to specify the operation required, e.g. read, write, etc. Com-
mands must be in 2-digit ASCII.
(
(6)
Message wait time
This is a time delay required for some computers t o switch from send
to receive states. The message wait time determines the minimum
waiting time before the AJ71C24 sends data after receiving
it
from the
computer. Set this time in accordance with the computer specifica-
tions.
The message wait time may be set between 0 and 150 msec in units of
10 msec. The time is set from O H t o FH (0 to 15) in
I
-digit hexadecimal,
where 1 corresponds to 10 msec,
I
Example: Setting the message wait time
Message wait time
Waiting time
r
(1
00
msec)
not required.
b
Computer
I
I " A " I
Transmission starts 100 msec later.
Advertisement
Table of Contents
