37
Wiring I/O Diagrams
RTD 2-Wire
In a 2-wire RTD configuration, connect the excite wire to A1-, the return wire to A1+, and jumper the
sense wire from A1s with a insulated wire going to A1+.
RTD 3-Wire
In a 3-wire RTD configuration, connect the return wire to A1+, the excite wire to A1-, and the sense
wire to A1s.
RTD 4-Wire
In a 4-wire RTD configuration, connect the return wire to A1+, the excite wire to A1-, the sense wire
to A1s, and leave the fourth wire disconnected.
Relay Output
Normally Open Contact
To connect Relay channel R1 for a circuit that is normally inactive, connect one wire to the COM
(common) connector and one wire to the NO (normally open) connector.
A1+
A1-
A1s
A2s
A2+
A2-
A3
+
A3
-
A3
s
A4
s
A4
+
A4
-
retu
rn
excite
sense
A1
+
A1
-
A1
s
A2
s
A2
+
A2
-
A3
+
A3
-
A3
s
A4
s
A4
+
A4
-
retur
n
excite
sense
A1
+
A1
-
A1
s
A2
s
A2
+
A2
-
A3+
A3-
A3s
A4s
A4+
A4-
retu
rn
excite
sense
COM
NC
NO
NO
COM
NC
R1
R2
Summary of Contents for IOAN DS1
Page 1: ...IOLAN DS Family DS1 TS2 User s Guide Version 1 8 Part 5500162 18 November 2006...
Page 18: ...Table of Contents 18 IOLAN Device Server User s Guide Version 1 8...
Page 50: ...EIA 232 Cabling Diagrams 50 IOLAN Device Server User s Guide Version 1 8...
Page 194: ...I O Commands 194 IOLAN Device Server User s Guide Version 1 8...
Page 202: ...API I O Access Over TruePort 202 IOLAN Device Server User s Guide Version 1 8...
Page 210: ...Glossary 210 IOLAN Device Server User s Guide Version 1 8...
Page 214: ...Index 214 IOLAN Device Server User s Guide Version 1 8...