2 SERIAL COMMUNICATION MODULE REPLACEMENT
2 - 20
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.
:Compatible, :Partial change required, ×:Incompatible
2.5 Program Comparison
Input signal
Signal name
Compat-
ibility
Precautions for replacement
A series AnS series
AJ71UC24
A1SJ71UC24-R2
A1SJ71UC24-R4
Xn0 Transmission complete
On the Q series, Xn0, Xn1, Xn7, and Xn8 are used as the transmission
complete signals.
Xn1 Receive data read request
On the Q series, Xn3, Xn4, XnA, and XnB are used as the read request,
receive data, and read request signals.
Xn2 Global signal On the Q series, X(n+1)A and X(n+1)B are used as global signals.
Xn3 On-demand in execution
Transmission complete of on-demand data is confirmed by the complete
device of the ONDEMAND instruction.
Xn4
Computer link module
Transmission sequence status
The status is confirmed by the transmission sequence state storage area
(addresses: 597(256
H
), 613(265
H
)) in buffer memory.
Xn5
Xn6
Xn7 Computer link module ready On the Q series, X(n+1)E is used as the ready signal.
Xn8 Use prohibited
On the Q series, Xn8 is used as the abnormal completion of transmission
signal.
Xn9 Mode switching complete On the Q series, Xn6 is used as the mode switching complete signal.
XnA
Use prohibited
On the Q series, XnA and XnB are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
XnB
XnC Use prohibited
XnD Watchdog timer On the Q series, X(n+1)F is used as the watchdog timer signal.
XnE
to
X(n+1)F
Use prohibited
On the Q series, XnE to X(n+1)F are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
Output signal
Signal name
Compat-
ibility
Precautions for replacement
A series AnS series
AJ71UC24
A1SJ71UC24-R2
A1SJ71UC24-R4
Yn0
to
YnF
Use prohibited
On the Q series, Yn0 to YnF are used as signals for various applications.
(Refer to Section 2.5.1 (2).)
Y(n+1)0 Send request On the Q series, Yn0 and Yn7 are used as the send request signals.
Y(n+1)1 Receive data read complete
On the Q series, Yn1 and Yn8 are used as the receive data read complete
signals.
Y(n+1)2
to
Y(n+1)8
Use prohibited
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).)
Y(n+1)9 Mode switching request On the Q series, Yn2 and Yn9 are used as the mode switching request signals.
Y(n+1)A
Use prohibited
Y(n+1)B
Y(n+1)C Use prohibited On the Q series, Y(n+1)C is used as the system setting default request signal.
Y(n+1)D
Use prohibited
Y(n+1)E
Y(n+1)F
To Next Page
Loading...
Need help?
General
