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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) Input Terminals
■ STATUS INDICATOR LED
ID
COLOR FUNCTION
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
CNFG.
14
15 16 17 18
3
4
5
6
7
8
9
(G)
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)
SW1-1
SW1-2 EXTENSION
OFF
OFF
F
ON
OFF
OFF
ON
Note : Be sure to set unused SW1-3 through 1-8 to OFF.
■ DISCRETE INPUT 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
■ INPUT TERMINAL ASSIGNMENT
10
11
COM
X1
1
2
COM
X0
NO.
ID
FUNCTION
1
COM Common
2
X0
Input 0
3
X2
Input 2
4
X4
Input 4
5
X6
Input 6
6
X8
Input 8
7
XA
Input 10
8
XC
Input 12
9
XE
Input 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
X3
X5
X7
X9
XB
3
4
5
6
7
8
X2
X4
X6
X8
XA
NO.
ID
10
COM Common
11
X1
12
X3
13
X5
14
X7
15
X9
16
XB
17
XD
18
XF
EM-7803-F Rev.5
R7M-DA16
----
FG
----
----
17
18
XD
XF
9
XC
XE
FUNCTION
Input 1
Input 3
Input 5
Input 7
Input 9
Input 11
Input 13
Input 15
P. 2 / 7
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