M-system R1MS-GH3 Instruction Manual page 3

■ CONNECTION DIAGRAM
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
TRIGGER INPUT
ALARM OUTPUT
*1. 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.
*2. Separate sets of terminals for DC and TC are assigned to each channel, however, DO NOT
connect to both sets of terminals at once. Duplicate connection may affect measuring accuracies.
DC and TC can be mixed among eight channels.
Note 1: Be careful to eliminate noise as much as possible by e.g. using shielded cables.
Note 2: Be sure to earth the FG terminal and the cable shielding to a most stable earth point in the
Note 3: Resistor modules (model: REM3-250) can be used to convert current inputs into voltage.
Caution: FG terminal is NOT a protective conductor terminal.
■ RS-232-C INTERFACE
1 5
6 9
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
+ +
ext. wire 19
*2 T/C
– –
+
20
DC
–
+ +
ext. wire
21
T/C
– –
+
22
DC
–
+ +
ext. wire 23
T/C
– –
+
24
DC
–
+ +
ext. wire 25
T/C
– –
+
26
DC
–
+ +
ext. wire
27
T/C
–
–
+
28
DC
–
+ +
ext. wire 29
T/C
– –
+
30
DC
–
+ +
ext. wire
31
T/C
– –
+
32
DC
–
+ +
ext. wire 33
T/C
– –
+
34
DC
–
+
35
–
36
environment.
However, use of REM3 is not recommended when TC inputs are mixed because the heat developed
on and around the REM3 affects the cold junction compensation performance.
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
Isolated Control
1
Analog Circuit
Input 1
2
Isolated
3
Analog
Input 2
4
Isolated
T1
5
Analog
T2
Input 3
6
T3
Term.
T4
Isolated
Resist.
7
Analog
Input 4
JACK
8
Isolated Power
T5
9
Analog Circuit
T6
Input 5
10
T7
Isolated
11
Analog
Input 6
12
Isolated
13
Analog
Input 7
14
Isolated
15
Analog
Input 8
16
Isolated
17
Alarm
Output
18
Isolated Trigger Input
R1MS-GH3
RS-232-C
Shielded Twisted-pair Cable
+
To Other
I/O Modules
–
Jumper *
1
CONFIGURATOR
U (+)
POWER
V (–)
FG
EM-5671 Rev.6 P. 3 / 8