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4. LINKING TO THE AnACPU (WITH DEDICATED INSTRUCTIONS)
AND THE AJ71 PT32-S3
MELSEC-A
4.3.2
1 / 0 signals
o f
an AJ71 PT32-S3
The following table shows the functions of the control 1/0 signals.
Table 4.2 List
of
Input Signals
Device
No.
Signal
name
I
Device No.
I
Signal
name
X(n+O)
Request-to-read signal
X(n+l9)
Request-to-read signal
X(n+ 1 )
For remote terminal
Sendcompleted signal
X(nel8)
For remote teninal
Send-completed signal
module No.
1
module No.
13
For remote terminal
X(n+3)
Request-to-read
signal
X(n+lB)
Request-to-read
signal
module No.
2
For remote terminal
module No. 14
X(n+4)
X(n+l D)
Request-to-read signal
X(n+5)
X(n+l C)
For remote terminal
Send-completed signal
module No. 3
I
-
Unusable
For remote terminal
module No. 4
X(n+7)
Request-to-read
signal
X(n+l F)
X(n+8)
MINI-S3 link communications
X(n+21)
Request-to-read signal
X(n+9)
Hardware fault
X(n+20)
For remote terminal
Sendcompleted signal
module No. 5
For remote terminal
Unusable
X(n+22)
X(n+B)
Request-to-read
signal
Receiveddata clear completion
X(n+23)
module No.
6
X(n+C)
TEST mode
X(n+25)
Request-to-read signal
X(n+D)
Remote terminal module error detection
X(n+24)
For remote terminal
Send-completed signal
module No. 7
X(n+E)
MINI-S3 link communications error
X(n+27)
Request-to-read signal
X(n+F)
MINI43 link error detection
X(n+26)
Send-completed signal
For remote terminal
module No.
8
X(n+lO)
Request-to-read signal
X ( n + l l )
ROM error
X(n+28)
For remote terminal
Send-completed signal
module No. 9
X(n+29)
For remote terminal
module No. 10
For remote terminal
module No. 11
Unusable
X(n+l5)
Request-to-read
signal
For remote terminal
module No. 12
4 - 12
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