R1MS-GH3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-5671 Rev.6 P. 3 / 8
■
CONNECTION DIAGRAM
RS-232-C
T3
T4
T2
T1
T7
T6
T5
Term.
Resist.
Control
Circuit
*
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
environment.
Note 3: Resistor modules (model: REM3-250) can be used to convert current inputs into voltage.
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.
+
–
+
–
ext. wire
ext. wire
ext. wire
ext. wire
ext. wire
ext. wire
ext. wire
ext. wire
Power
Circuit
+
–
Shielded Twisted-pair Cable
To Other
I/O Modules
Jumper
*
1
FG
U (+)
V (–)
POWER
D-SUB CONNECTOR
JACK
CONFIGURATOR
Isolated
Analog
Input 1
Isolated
Analog
Input 2
Isolated
Analog
Input 3
Isolated
Analog
Input 4
Isolated
Analog
Input 5
Isolated
Analog
Input 6
Isolated
Analog
Input 7
Isolated
Analog
Input 8
Isolated
Alarm
Output
Isolated Trigger Input
*
2
+
–
T/C
INPUT 1
DC
20
19
22
21
24
23
26
25
28
27
30
29
32
31
34
33
36
35
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
+
–
+
–
+
–
T/C
INPUT 2
DC
+
–
+
–
+
–
T/C
INPUT 3
DC
+
–
+
–
+
–
T/C
INPUT 4
DC
+
–
+
–
+
–
T/C
INPUT 5
DC
+
–
+
–
+
–
T/C
INPUT 6
DC
+
–
+
–
+
–
T/C
INPUT 7
DC
+
–
+
–
+
–
+
–
T/C
INPUT 8
DC
ALARM OUTPUT
TRIGGER INPUT
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)
BB (RD)
AB (SG)
2
3
5
Transmitted Data
Received Data
Signal Common
CB (CS)
CA (RS)
7
8
Clear to Send
Request to Send
1
4
6
9
Not Used.
DO NOT connect. Connecting may
cause malfunctions.
