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3 .
Specifications
MfcSEC-A
3 . 3
Sianals h u t to and Outout from the PC
CPU
3.3.1
Table of Input and Output Signals
The signals input to and output from the PC CPU of the A64BTL are as shown below.
(1) The A64BTL uses 32 input points and 32 output points for transmitting data to and from the
PC CPU.
(2) The input and output signals have the following meaning:
(a) Device X: Input signals from the A64BTL to the PC CPU
(b) Device Y: Output signals from the PC CPU to the A64BTL
(3) Table 3.3 shows the signals when the A64BTL has been installed in I/O Slot 0 of the terminal
base unit.
Table 3.3
I/O
signals
Signal Direction: A64BTL
+
CPU
I
Sisnal
Direction: CPU + A64BTL
1
r
tt
kvice No.
Sianal Name
I
Device No
Signal Name
X00
x01
WDT error
flag
YO0
External output 0-3 enabled flag
External output 4-7 enabled flag
External output 8-B enabled flag
External output C-F enabled flag
YOC
Error
flag
YOD
Can't be used
x02
X03
X04
X05
X06
Interlock signals for RFRP and
RTOP instructions when A64BTL is
used for remote
I/O
station
CH. 1 d i m m e d wiling detection flag
1
CH. 2 disccxlrtected wirina detection
Raa
YOF
X07
CH. 3 disconnected wiring detection flag
I
Y10
CH. 4 disconnected wiring detection flag
I
Y11
Forced output mode instruction
CH. 1 external output enabled
CH. 2 external output enabled
X08
x09
X O A
xi c
CH. 3 external owbut enabled
CH. 4 external output enabled
Error reset
Can't be used
ODen
Y16
CH. 1 zero point correction setting
CH. 2 zero point correction setting
CH. 3 zero point correction setting
CH. 4 zero point correction setting
X1 D
X1
F
Interlock signals for RFRP
and
RTOP instructions when A64BTL is
used
for
remote
I/O station
Y1
F
Can't be used
IMPORTANT
YO0
-
YOC and Y1 B
-
Y1 F are used for the system, and are not available to the user.
If they are used (turned ON/OFF) by the sequence program, the function of the A64BTL
cannot be guaranteed.
X00
-
X1 F and YO0
-
Y1 F of the same numbers cannot be used as internal relays.
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