R1M-GH
P. / 4
EM-5657 Rev.7
MODBUS WIRING CONNECTION
R1M
T1
T2
T3
T4
R1M
T1
T2
T3
T4
T1
T2
T3
T4
R1M
CONNECTOR
RS-232C
RS-485
*
1
*
1
*
1. Internal terminating resistor is used when the device is at the end of a transmission line.
*
2. Install shielded cables to all sections and ground them at single point.
*
2
FG
RS-485
TERMINAL CONNECTIONS
Connect the module referring to the connection diagram.
Attach the CJC sensor together with input wiring to the input screw terminals. The sensor is calibrated for each particular
module and not interchangeable with another. Check the serial numbers of the module and sensor.
RS-232C
T3
T4
T2
T1
T7
T6
T5
Term.
Resist.
Output
Circuit
When the device is located at the end of a transmission line via twisted-pair cable,
(when there is no cross-wiring), close across the terminal T2 – T3 with the attached
jumper pin (or with a leadwire).
When the device is not at the end, remove the jumper pin.
Remark 1: This device is not designed to cancel noise included in the input signals.
Be careful to eliminate such noise by using shielded cables.
Remark 2: Be sure to maintain the same potential at all the common negative
terminals for DC input.
*
9
8
7
6
5
4
3
2
1
10
12
11
13
15
14
16
17
18
20
19
21
22
23
24
25
27
26
28
29
30
31
32
33
35
34
36
TRIGGER INPUT
T/C INPUT
–
+
DC INPUT
INPUT 1
+
–
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
INPUT 10
INPUT 11
INPUT 12
INPUT 13
INPUT 14
INPUT 15
INPUT 16
CJC
Sensor
+
ext. wire
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
Power
Circuit
Input
Circuit
+
–
Shielded Twisted-pair Cable
To Other
I/O Modules
Jumper
*
FG
U (+)
V (–)
POWER
D-SUB CONNECTOR
ABBR.
PIN NO. EXPLANATION OF FUNCTION
BA (SD)
2
Transmitted Data
BB (RD)
3
Received Data
AB (SG)
5
Signal Common
CB (CS)
7
Clear to Send
CA (RS)
8
Request to Send
1
Not Used.
4
DO NOT connect. Connecting may
6
cause malfunctions.
9
1
5
6
9
■
RS-232C INTERFACE
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
