R7M-DC4G
EM-7803-BB P. 2 / 4
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
X10
X1
NODE ADD.
B.RATE
CNFG.
1 2 3 4 5 6 7 8
0 1 2 3
10 11 12 13
2
3
4
1
15 16 17 18
7
8
9
6
14
5
ERR
RD
RUN
SD
PWR
4
5
6
7
1
2
3
(A)
(F)
(H)
(G)
(B)
(C)
(D)
(E)
■
LEFT SIDE VIEW
TERM
ON
OFF
(I)
(A) Status Indicator LED
(B) Station Address Setting Rotary SW
(C) Baud Rate Setting Rotary SW
(D) Operation Mode Setting DIP SW (SW1)
(E) PC Configurator Jack
(F) Discrete Output Status Indicator LED
(G) Modbus, Power Supply Terminal
(H) Output Terminals
(I) Terminating Resistor SW
■
FRONT VIEW
■
STATUS INDICATOR LED
ID
COLOR FUNCTION
PWR
Red
Turns on when the internal 5V is sup-
plied normally.
RUN
Red
Turns on when the data is received
normally.
ERR
Red
Turns on when the received data is ab-
normal. Blinks when setting is abnormal.
SD
Red
Turns on when the module is transmit-
ting.
RD
Red
Turns on when the module is receiving.
■
DISCRETE OUTPUT STATUS INDICATOR LED
LED red indicators show the signal status.
ON : a contact output (NO)
OFF : b contact output (NC)
■
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.
(Factory setting 0).
5
4
3
2
1
0
9
8
7
6
Baud Rate Setting
0: 38.4 kbps
1: 19.2 kbps
2: 9600 bps
3: 4800 bps
4: 2400 bps
5: 1200 bps
6: 14.4 kbps
7: 28.8 kbps
8: 57.6 kbps
9: 115.2 kbps
■
OPERATING MODE
• Output at the Loss of Communication: SW1-4
SW1-4
OUTPUT AT THE LOSS OF COMMUNICATION
OFF
B contact output
(Discard the last data received normally)
ON
Hold the output (*)
(maintains the last data received normally)
(*) Factory setting
Note: Be sure to set unused SW1-1 through 1-3 and 1-5
through 1-8 to OFF.
■
POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT
4
DA
5
6
7
1
2
3
DG +24V
0V
DB
SLD
FG
(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 Output common 0
11
Y0
Output 0 (NO)
3
COM0 Output common 0
12
Y1
Output 0 (NC)
4
COM0 Output common 1
13
Y2
Output 1 (NO)
5
COM0 Output common 1
14
Y3
Output 1 (NC)
6
COM1 Output common 2
15
Y4
Output 2 (NO)
7
COM1 Output common 2
16
Y5
Output 2 (NC)
8
COM1 Output common 3
17
Y6
Output 3 (NO)
9
COM1 Output common 3
18
Y7
Output 3 (NC)
■
TERMINATING RESISTOR
To use the terminating resistor, turn the switch ON, and
OFF to invalidate.
(Factory setting OFF)
■
EXTENSION MODULE
Combinations with all extension modules are available
056 222 38 18
www.sentronic.com
SENTRONIC
AG
