
Appendix D: Cable Connection Diagrams
Siemens Energy & Automation, Inc. 69
Koyo 405 (PLC Direct)
Mitsubishi FX
1
9
2
10
3
11 13
46
12 14 15
578
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
DTU 3005B
Koyo 405
2 TXD
3 RXD
7 Ground
2 TXD
3 RXD
4 Ground
13
14
15
DB-25 Male
DB-15 Male
Cable Type: 4 Conductor Round
2-Wire RS422 or RS485 Communications: No
1
1
14
14
2
2
15
15
3
3
16
16
4
4
17
17
5
5
18
18
6
6
19
19
7
7
20
20
8
8
21
21
9
9
22
22
10
10
23
23
11
11
24
24
12
12
25
25
13
13
DTU 3005B
Mitsubishi
FX
18 RTS-
19 RTS+
21 TX-
22 RX-
23 TX+
24 RX+
2 RX+
3 TX+
4 CTS+
15 RX-
16 TX-
17 CTS-
DB-25 Male
DB-25 Male
Cable Type: 6 Conductor Round
2-Wire RS422 or RS485 Communications: No
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