MODEL: R1M-A1
MODBUS WIRING CONNECTION
R1M
T1
T2
T3
T4
R1M
T1
T2
T3
T4
T1
T2
T3
T4
R1M
CONNECTO
R
RS-232-C
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
CONNECTION DIAGRAM
Note: In order to improve EMC performance, bond the FG terminal to ground.
Caution: FG terminal is NOT a protective conductor terminal.
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.
*
Power
Circuit
+
–
Shielded Twisted-pair Cable
To Other
PC Recorders
Jumper*
FG
U (+)
V (–)
POWER
D-SUB CONNECTOR
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
ch.1
ch.2
ch.3
ch.4
ch.5
ch.6
ch.7
ch.8
COM (–)
ch.9
ch.10
ch.11
ch.12
ch.13
ch.14
ch.15
ch.16
COM (–)
ch.17
ch.18
ch.19
ch.20
ch.21
ch.22
ch.23
ch.24
COM (–)
ch.25
ch.26
ch.27
ch.28
ch.29
ch.30
ch.31
Count Reset Input ch.32
COM (–)
Input Circuit
Input Circuit
A9
A8
A7
A6
A5
A4
A3
A2
A1
A10
A12
A11
A13
A15
A14
A16
B1
:
B16
ch.1
ch.2
ch.3
ch.4
ch.5
ch.6
ch.7
ch.8
ch.9
ch.10
ch.11
ch.12
ch.13
ch.14
ch.15
ch.16
COM (–)
A9
A8
A7
A6
A5
A4
A3
A2
A1
A10
A12
A11
A13
A15
A14
A16
ch.17
CN1
ch.18
ch.19
ch.20
ch.21
ch.22
ch.23
ch.24
ch.25
ch.26
ch.27
ch.28
ch.29
ch.30
ch.31
Count Reset Input ch.32
■
FCN TYPE CONNECTOR
■
M3 SCREW TERMINALS
CN2
B1
:
B16
COM (–)
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
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