Card-Sized I/O Connector Pin Assignment; Precautions For Wiring Card-Sized I/O - Mitsubishi Electric MELDAS 600 Series Connection Manual

5.3.3 Card-sized I/O Connector Pin Assignment

A
1
GND
2
I/O
TXRX∗
3
I
SEL1
4
I
SEL3
5
I
+24V
6
GND
7
O
YF
8
O
YE
9
O
YD
10
O
YC
11
O
YB
12
O
YA
13
O
Y9
14
O
Y8
15
GND
16
I
XF
17
I
XE
18
I
XD
19
I
XC
20
I
XB
21
I
XA
22
I
X9
23
I
X8
24
GND
25
I
+5V

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∗
NC control unit
(CF10,CF11)
(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∗
CHAPTER 5 CONNECTION OF I/O INTERFACE
5.3 Connection of Card-sized I/O
CF30
B
1
GND
2
I/O TXRX
3
I SEL2
4
I +24V
5
I +24V
6
GND
7
O Y7
8
O Y6
9
O Y5
10
O
Y4
11
O Y3
12
O Y2
13
O Y1
14
O Y0
15
GND
16
I X7
17
I X6
18
I X5
19
I X4
20
I X3
21
I X2
22
I X1
23
I X0
24
GND
25
I +5V
B2
A2
Connector (CF30)
on card-sized I/O connector PCB
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
100Ω
RN14C2E101F (Koa Denko)
59