-
-
7
4.
WIRING
(1)
Table 1 shows the functions of the terminals for the SI-P1 card PROFIBUS-DP bus connection.
Table 1 Functions of Terminals for SI-P1 Card PROFIBUS-DP Bus Connection
Terminal
No.
Name
Contents
1
+5V BUS
Not used.
2
GND BUS
Not used.
3
A-Line
Minus RxD/TxD according to RS-485 specifications
4
B-Line
Plus RxD/TxD according to RS-485 specifications
5
Shield
Bus cable shield connection terminal
6
RTS
Not used.
(2)
Wire the host PROFIBUS-DP master and SI-P1 card on the terminal block as follows;
1)
The applicable cable sizes of the terminal block JP3 are shown below.
〔
Terminal: MINI COMBICON series, made by Phoenix Contact Co., Ltd.
〕
I
VAC
[mm]
AWG
[A]
[V]
Twisted Cable
0.14
-
1.5
28
-
16
8
160
Single Cable
0.14
-
1.5
28
-
16
8
160
UL
−
30
-
14
8
300
CSA
−
28
-
16
8
300
2)
Refer to Fig. 4 for an illustration of how the end of the connecting cable on the SI-P1 card's side should
be prepared.
3)
Use a thin screwdriver, less than 2.5mm wide and less than 0.4mm thick, to loosen the terminal screw.
4)
Connect the SI-P1 card's terminal block No. 3 with the PROFIBUS-DP master's
No. 8 pin and connect the SI-P1 card terminal block No. 4 with the
PROFIBUS-DP master's D-SUB No. 3 pin. (See Fig. 3.)
5)
Insert the cable from the bottom of the terminal block.
6)
Tighten the terminal screw so that the cable cannot be removed.
(Tightening torque: 0.22 to 0.25 [N
x
m])
1 2 3 4 5 6
Strip Length
Approx. 5.5 mm
Cable
Fig. 4 Connection Cable Termination
at Bus Connection Terminal SI-P1
Terminal
block (JP3)
Termination resistor
Selector Switch
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