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COMPONENT IDENTIFICATION
(A)
(B)
(C)
1
X10
X1
PWR
ERR
RD
RUN
SD
NODE ADD.
B.RATE
4
5
6
7
10 11 12 13
1
2
3
1
2
(F)
(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 I/O Status Indicator LED
(F) Modbus, Power Supply Terminals
(G) Output Terminals
■ STATUS INDICATOR LED
ID
COLOR
Turns on when the internal 5V is supplied
PWR
Red
normally.
Turns on when the data is received nor-
RUN
Red
mally.
Turns on when the received data is abnor-
ERR
Red
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.
■ BAUD RATE
Baud Rate is selected with the rotary switch.
0 : 38.4 kbps (factory setting)
1 : 19.2 kbps
2 : 9600 bps
3 : 4800 bps
■ EXTENSION MODULE
Combinations with all extension modules are selectable.
(D)
(E)
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
14
15 16 17 18
3
4
5
6
7
8
9
(G)
FUNCTION
Factory setting : 00
Node Address Setting (x1)
Node Address Setting (x10)
Baud Rate Setting
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
■ OPERATING MODE
(*) Factory setting
• Extension (SW1-1, 1-2)
F
SW1-1
SW1-2 EXTENSION
OFF
OFF
ON
OFF
OFF
ON
• Output at the Loss of Communication (SW1-4)
SW1-4 OUTPUT AT THE LOSS OF COMMUNICATION
OFF
Reset the output (turned off)
Hold the output (*)(maintains the last data received
ON
normally)
Note : Be sure to set unused SW1-3 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
NO.
1
2
3
4
5
6
+24V
7
■ OUTPUT TERMINAL ASSIGNMENT
10
11
+24V
Y1
1
2
0V
Y0
NO.
ID
FUNCTION
1
0V
0V
2
Y0
Output 0
3
Y2
Output 2
4
Y4
Output 4
5
Y6
Output 6
6
Y8
Output 8
7
YA
Output 10
8
YC
Output 12
9
YE
Output 14
No extension (*)
Discrete input, 8 or 16 points
Discrete output, 8 or 16 points
4
5
6
7
DA
DG
+24V
0V
1
2
3
DB
SLD
FG
ID
FUNCTION, NOTES
DB
SLD
Shield
FG
DA
DG
Power input (24V DC)
0V
Power input (0V)
12
13
14
15
16
Y3
Y5
Y7
Y9
YB
3
4
5
6
7
8
Y2
Y4
Y6
Y8
YA
NO.
ID
10
+24V
11
Y1
12
Y3
13
Y5
14
Y7
15
Y9
16
YB
17
YD
18
YF
EM-7803-H Rev.5
R7M-DC16B
----
FG
----
----
17
18
YD
YF
9
YC
YE
FUNCTION
24V DC (common)
Output 1
Output 3
Output 5
Output 7
Output 9
Output 11
Output 13
Output 15
P. 2 / 7
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