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9
9 Communication 9.6.2 CANlink Network
2) DIP switch
DIP switches of H3U-3232MT/R and H3U-0808PMRTA models differ from that of the H3U-1616MT/R-XP
model in design and usage.
a) H3U-3232MT/R and H3U-0808PMRTA models
H3U-3232MT/R and H3U-0808PMRTA models have 8-digit DIP switches. The following describes the
denition of an 8-bit DIP switch.
CAN DIP switch (
H3U
-3232MT/R and
H3U
-0808PMRTA models)
Denition of CAN DIP switch (
H3U
-3232MT/R and
H3U
-0808PMRTA models)
No. Signal Description
1
Baud rate
combination bit
1
bit 1 and bit 0
00 - 500 Kbps
01 - 100 Kbps
2
Baud rate
combination bit
0
10 - 1 Mbps
11 - 50 Kbps
3 Address pin A5 The digits of the 6-bit DIP switch form a binary numeral in descending order, which indicates the
station number (for the main PLC module, the station number can be set through D elements). ON
indicates 1, and OFF indicates 0. A5 is the most signicant bit, and A0 is the least signicant bit:
A5A4A3A2A1A0. For example, if A0 is ON and the others are OFF, the address is 000001 in binary
format, K01 in decimal format, and h01 in hexadecimal format. If A3 and A4 are ON, and the others
are OFF, the address is 011000 in binary format, K24 in decimal format, and h18 in hexadecimal
format.
4 Address pin A4
5 Address pin A3
6 Address pin A2
7 Address pin A1
8 Address pin A0
Note: If the DIP switch is changed, the baud rate and address will not take effect immediately. You need to
power off then on the device or switch it from STOP to RUN.
H3U
-3232MT/R and
H3U
-0808PMRTA models have CAN build-out resistors. The following gure shows
DIP switches.
CANㄟ᧕⭥䱫/RS485ㄟ᧕⭥䱫
༴Ҿ㖁㔌ᵛㄟᰦ䴰㾱㖞ON
H -0808PMRTA
ETH
1
RUN
STOP
COM0
0
Baud Station
12345678
ON
3U
When the resistor connected
to the CAN port/RS485
interface resides at the
network end, set it to ON.
b) H3U-1616MT/R-XP model
The CAN address of the
H3U
-1616MT/R-XP model overlaps the fourth segment of the Ethernet IP address.
The following describes how to use a DIP switch.
Baud
Station
C R
10987654321
ON
CAN DIP switch (
H3U
-1616MT/R-XP model)