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P a n e l P C .
·LAN A / LAN B· Ethernet.
The PPC-21W has 4 RJ45 LAN ports, two at the lower end (LAN A / LAN B) and two at the
upper end (LAN C / LAN D). All ports comply with the IEEE 802.3u 10 / 100Base-T CSMA/CD
standard and are compliant with the IEEE 802.3ab 1000Base-T specification.
A
B
·COM3 / COM4· RS-422/485 serial line.
2 COM ports for RS-422/485 serial lines, 50 ~ 115.2 kbps.
1 ... 5
6 ... 9
The PPC-21W automatically detects the RS-422 or RS-485 signal. In RS-485 mode, the
PPC-21W automatically detects the direction of the incoming data and, therefore, it can
change the direction of transmission accordingly; no link signal is required (for example,
RTS). This allows an RS-485 network to be created with only two cables. Additionally,
prewritten software for half-duplex RS-232 environments can be maintained without the
need to be edited.
24 V DC electric power supply input.
1
LED.
Meaning.
A (green)
Connection LED. The LED turns on when the PPC-
21W is connected to the data network.
B (yellow)
Activity LED. The LED blinks when data is being
received/transferred.
Plug-in part 9-pin female SUB-D HD connector.
Pin.
RS-422 signal.
1
TX-
2
TX+
3
RX+
4
RX-
5
11
6
NC
7
NC
8
NC
9
NC
Plug-in part 3-pole Phoenix-type connector (5.08 mm pitch).
Rated current; 16 A.
Pin
Signal.
Function.
1
- - -.
2
11
0 V reference signal.
3
+24 V
Power supply.
Connector data.
Number of poles.
Pitch.
Connection technique.
Minimum/maximum section.
Rated current In.
Cable data.
Length to be stripped.
See
"3.5 Voltage supply for the module."
RS-485 signal.
Data-
Data+
NC
NC
11
NC
NC
NC
NC
3.
5.08 mm.
Screw connection.
0.2 / 4 mm².
16 A.
7 mm.
on page 53.
3.
CNC 8065
(R
: 1801)
EF
·57·
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