Mitsubishi Electric F920GOT-BBD-K-E, Hardware Manual

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GOT-F900 SERIES (CONNECTION) Connection of MELSEC-QnA Series PLC 10
10-10
10.3.2 Setting Examples
5) RS-422 connection
a) When the AJ71QC24(N)(-R4) is connected
Important Point
Set the mode selector switch for the unused channel to any value other than "0 (interlocking
operation)".
b) When the A1SJ71QC24(N) is connected
Mode selector switches
(for CH1/CH2)
Transmission
specifications setting
switches
(for CH1/CH2)
A
J71QC24-R4
RUN
CPUR/W
NEU
ACK
NAK
C/N
P/S
PRO
SIO
SD.WAIT
SD
RD
CH1.ERR.
CH2.ERR.
NEU
ACK
NAK
C/N
P/S
PRO
SIO
SD.WAIT
SD
RD
CH.1 CH.2
•~1
CH1 CH2
STATION
No.
MODE
SW
01
02
03
04
05
06
07
08
09
10
11
12
RDA
RDB
SG
SDA
SDB
NC
FG
CH1
RS-232C
CH2
RS422
RS485
8
7
6
5
4
3
2
1 0 F
E
D
C
B
A
9 8
7
6
5
4
3
2
1 0 F
E
D
C
B
A
9
5
4
3
2
1 0
9
8
7
6 5
4
3
2
1 0
9
8
7
6
•~10
ON
02
03
04
05
06
07
08
01
SW
09
10
11
12
2
1
0
9
8
7
6
5
4
3
×
10
2
1
0
9
8
7
6
5
4
3
1
Station number
setting switches
CH1 CH2
8
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9 8
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
When the transmission
speed is set to "19,200
bps"
→
×
A
1SJ71QC24
CH1 CH2
ERROR
RD
SW.E
NEU
ACK
NAK
SD.W.
SD
STS ERR.
DISPLAY
5
4
3
2
1
0
9
8
7
6 5
4
3
2
1
0
9
8
7
6
1
8
2
3
4
5
6
7
9
10
11
12
SW
CH1/
8 7
6
5
4
3 2
1 0 F
E
D
C
B
A
9
CH1 CH2
X10 X1
STATION NO.
MODE
A1SJ71QC24
RUN
RD
C.R/W
NEU
ACK
NAK
SD.W.
SD
ERR.
C/N
P/S
PRO
SIO
2
ERR.
C/N
P/S
PRO
SIO
AB
CH2 RS-422/RS-485
CH1 RS-232-C
SG
FG
NC
RDA
RDB
8 7
6
5
4
3 2 1 0 F E
D
C
B
A 9
ON
Mode selector switches
(for CH2)
Transmission
specifications setting
switches
(for CH2)
8
7
6
5
4
3
2
1 0
F
E
D
C
B
A
9
CH2
SDA
SDB
→
When the
transmission
speed is set to
"19,200 bps"
→