Mitsubishi MELSEC Q Series Handbook

2 SERIAL COMMUNICATION MODULE REPLACEMENT
2 - 31
(a) When using application instruction (FROM/TO)
Writes No. of send data.
Transmission processing
Writes send data.
Performs send request.
Turns OFF the send request
signal upon transmission
completion.
(Flag control at transmission
completion)
Reads No. of receive data.
Reception processing
Transfers the No. of receive
data to the index register.
Reads received amount of data.
Turns ON the read complete
signal of the receive data.
(Flag control at reception
completion)
Send
enable
flag
Send
request
Module
ready
signal
Transmis-
sion com-
plete
Transmis-
sion com-
plete
Send completion
check flag
Receive
data read
Send
data
Send
request
Send
request
Transmission normal
complete flag
Transmission normal
complete flag
No.of receive
data
No.of receive
data
Receive
data
Receive data
read complete
Reception normal
complete flag
Receive completion
check flag
Reception normal
complete flag

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English