R7M-DC8C
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-7803-U Rev.4 P. 2 / 7
COMPONENT IDENTIFICATION
5
4
3
2 1 0 9
8
7
6
5
4
3
2 1 0 9
8
7
6
5
4
3
2 1 0 9
8
7
6
ERR
RD
RUN
SD
PWR
X10
X1
NODE ADD.
B.RATE
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
4
5
6
7
1
2
3
10 11 12 13
2
3
4
1
15 16 17 18
7
8
9
6
14
5
(A) Status Indicator LED
(B) Node Address Setting Rotary SW
(C) Baud Rate Setting Rotary SW
(D) Operating Mode Setting DIP SW (SW1)
(E) Discrete Output Status Indicator LED
(F) Modbus, Power Supply Terminals
(G) Output Terminals
(F)
(G)
(B)
(A)
(C)
(D)
(E)
■
STATUS INDICATOR LED
ID
COLOR FUNCTION
PWR
Red
Turns on when the internal 5V is supplied
normally.
RUN
Red
Turns on when the data is received nor-
mally.
ERR
Red
Turns on when the received data is abnor-
mal. Blinks when setting is abnormal.
SD
Red
Turns on when the module is transmitting.
RD
Red
Turns on when the module is receiving.
■
NODE ADDRESS
Node Address is selected between 1 and 99 in decimal. The
left switch determines the tenth place digit, while the right
switch does the ones place digit of the address.
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
Node Address Setting (x1)
Factory setting : 00
Node Address Setting (x10)
■
BAUD RATE
Baud Rate is selected with the rotary switch.
5
4
3
2
1
0
9
8
7
6
Baud Rate Setting
0 : 38.4 kbps (factory setting)
1 : 19.2 kbps
2 : 9600 bps
3 : 4800 bps
■
OPERATING MODE
(*) Factory setting
•
Output at the Loss of Communication (SW1-4)
SW1-4
OUTPUT AT THE LOSS OF COMMUNICATION
OFF
Reset the output (turned off)
ON
Hold the output (*)(maintains the last data received
normally)
Note : Be sure to set unused SW1-1 through 1-3 and 1-5 through
1-8 to OFF.
■
DISCRETE OUTPUT STATUS INDICATOR LED
LED indicators show the signal status.
ON : LED ON
OFF : LED OFF
■
POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT
4
DA
5
DG
6
+24V
1
DB
2
SLD
3
FG
7
0V
NO.
ID
FUNCTION, NOTES
1
DB
----
2
SLD
Shield
3
FG
FG
4
DA
----
5
DG
----
6
+24V
Power input (24V DC)
7
0V
Power input (0V)
■
OUTPUT TERMINAL ASSIGNMENT
10
+24V
11
Y0
12
Y1
1
0V
2
COM0
3
COM0
13
Y2
4
COM0
14
Y3
5
COM0
15
Y4
6
COM1
16
Y5
7
COM1
17
Y6
8
COM1
9
COM1
18
Y7
NO.
ID
FUNCTION
NO.
ID
FUNCTION
1
0V
0V
10 +24V 24V DC
2
COM0 Common 0
11
Y0
Output 0
3
COM0 Common 0
12
Y1
Output 1
4
COM0 Common 0
13
Y2
Output 2
5
COM0 Common 0
14
Y3
Output 3
6
COM1 Common 1
15
Y4
Output 4
7
COM1 Common 1
16
Y5
Output 5
8
COM1 Common 1
17
Y6
Output 6
9
COM1 Common 1
18
Y7
Output 7
