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COMPONENT IDENTIFICATION
SIDE VIEW
Terminating Resistor SW
■ STATUS INDICATOR LED
ID
COLOR
Turns on when the internal 5V is sup-
PWR
Green
plied normally.
Turns on when the refresh data is re-
RUN
Green
ceived normally.
■ DISCRETE OUTPUT STATUS INDICATOR LED
LED indicators shows the signal status.
ON : LED ON (red)
OFF : LED OFF
■ STATION ADDRESS
The left switch determines the sixteenths place digit, while
the right switch does the ones place digit of the address.
(Range: 01H to 3FH)
■ OPERATING MODE
(*) Factory setting
• Output at the loss of communication (SW1-7)
SW1-7
OUTPUT AT THE LOSS OF COMMUNICATION
Hold the output (*)
OFF
(maintains the last data received normally)
ON
Reset the output (turned off)
• Transfer rate (SW1-8)
SW1-8
OFF
ON
Note: Be sure to set unused SW1-1 through 1-6 to OFF.
FRONT VIEW
Station Address Setting Rotary SW
Status Indicator LED
PWR
FUNCTION
Station Address Setting (x1)
Station Address Setting (x16)
TRANSFER RATE
12 Mbps (*)
6 Mbps
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
1
2
3
X10
X1
RUN
STATION ADD.
4
5
6
7
10 11 12 13
1
2
3
1
2
Network, Power Supply
Terminals
■ TERMINATING RESISTOR
To use the terminating resistor, turn the switch ON, and
OFF to invalidate. (Factory setting OFF)
■ NETWORK, POWER SUPPLY TERMINAL ASSIGNMENT
• Full-duplex communication
NO.
ID
1
TXD+
2
TXD–
3
FG
4
RXD+
5
RXD–
6
+24V
7
0V
• Half-duplex communication
NO.
ID
1
NC
2
NC
3
FG
4
TR+
5
TR–
6
+24V
7
0V
R7HL-DC16B
Operating Mode Setting DIP SW (SW1)
Discrete Output
Status Indicator LED
ON
4
5
6
7
8
0
1
2
3
4
5
6
7
8
9
A
B
C
14
15 16 17 18
3
4
5
6
7
8
9
Output Terminals
4
5
6
7
RXD+
RXD– +24V 0V
1
2
3
TXD+ TXD– FG
FUNCTION, NOTES
Network (slave, transmission +)
Network (slave, transmission –)
FG
Network (master, transmission +)
Network (master, transmission –)
Power input (24V DC)
Power input (0V)
4
5
6
7
+
– +
TR
TR
24V
0V
1
2
3
NC
NC
FG
FUNCTION, NOTES
No connection
No connection
FG
Network
Network
Power input (24V DC)
Power input (0V)
EM-7812-H Rev.4 P. 2 / 5
D
E
F
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