Specifications

CHAPTER 5 CONNECTION OF I/O INTERFACE
5.3 Connection of Card-sized I/O
59
5.3.3 Card-sized I/O Connector Pin Assignment
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
A
GND
TXRX∗
SEL1
SEL3
+24V
GND
YF
YE
YD
YC
YB
YA
Y9
Y8
GND
XF
XE
XD
XC
XB
XA
X9
X8
GND
+5V
I/O
I
I
I
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
B
GND
TXRX
SEL2
+24V
+24V
GND
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
GND
X7
X6
X5
X4
X3
X2
X1
X0
GND
+5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
I/O
I
I
I
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
CF30
5.3.4 Precautions for Wiring Card-sized I/O
(1) Connection of terminator
A terminator is required between the communication signal cables (TXRX, TXRX*) of the
card-sized I/O. Connect a terminator to the card-sized I/O connector PCB signal lines as shown
below.
(Example) When four connectors are installed on card-sized I/O connector PCB.
TXRX
TXRX∗
Connector (CF30)
on card-sized I/O connector PCB
NC control unit
(CF10,CF11)
100Ω
B2
A2
(2) Shield treatment of communication signal cable
The card-sized I/O's communication signal cables (TXRX, TXRX∗) communicate at a high speed,
so they must be wired separately from other signal cables. Shield each end of the signal with a
GND pattern as shown below, and ground at several places.
TXRX
TXRX∗
The signal assignment (X, Y) differs
according to the base I/O unit's station No.
Refer to the "PLC Interface Manual" for
details.
Recommended resistance
100Ω 1/4W
RN14C2E101F (Koa Denko)