Program Comparison; I/O Signal - Mitsubishi MELSEC Q Series Handbook

2
SERIAL COMMUNICATION MODULE REPLACEMENT

2.5 Program Comparison

2.5.1 I/O signal

(1) Comparison between A/AnS series and Q series
There is no compatibility in the I/O signal assignments between the A/AnS series and the Q series.
Make a new sequence program.
A series
Input signal
AJ71UC24
Xn0 Transmission complete
Xn1 Receive data read request
Xn2
Xn3 On-demand in execution
Xn4
Computer link module
Xn5
Transmission sequence status
Xn6
Xn7 Computer link module ready
Xn8
Xn9 Mode switching complete
XnA
XnB
XnC
XnD
XnE
to
X(n+1)F
A series
Output signal
AJ71UC24
Yn0
to
YnF
Y(n+1)0
Y(n+1)1 Receive data read complete
Y(n+1)2
to
Y(n+1)8
Y(n+1)9 Mode switching request
Y(n+1)A
Y(n+1)B
Y(n+1)C
Y(n+1)D
Y(n+1)E
Y(n+1)F
2
- 20
Signal name
AnS series Compat-
ibility
A1SJ71UC24-R2
A1SJ71UC24-R4
Global signal
Use prohibited
Use prohibited
Use prohibited
Watchdog timer
Use prohibited
Signal name
AnS series Compat-
ibility
A1SJ71UC24-R2
A1SJ71UC24-R4
Use prohibited
Send request
Use prohibited
Use prohibited
Use prohibited
Use prohibited
:Compatible,
Precautions for replacement
On the Q series, Xn0, Xn1, Xn7, and Xn8 are used as the transmission
complete signals.
On the Q series, Xn3, Xn4, XnA, and XnB are used as the read request,
receive data, and read request signals.
On the Q series, X(n+1)A and X(n+1)B are used as global signals.
Transmission complete of on-demand data is confirmed by the complete
device of the ONDEMAND instruction.
The status is confirmed by the transmission sequence state storage area
(addresses: 597(256 ), 613(265 )) in buffer memory.
H H
On the Q series, X(n+1)E is used as the ready signal.
On the Q series, Xn8 is used as the abnormal completion of transmission
signal.
On the Q series, Xn6 is used as the mode switching complete signal.
On the Q series, XnA and XnB are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
On the Q series, X(n+1)F is used as the watchdog timer signal.
On the Q series, XnE to X(n+1)F are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
Precautions for replacement
On the Q series, Yn0 to YnF are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
On the Q series, Yn0 and Yn7 are used as the send request signals.
On the Q series, Yn1 and Yn8 are used as the receive data read complete
signals.
On the Q series, Y(n+1)2 to Y(n+1)8 are used as signals for various
applications. (Refer to Section 2.5.1 (2).)
On the Q series, Yn2 and Yn9 are used as the mode switching request signals.
On the Q series, Y(n+1)C is used as the system setting default request signal.
:Partial change required, ×:Incompatible