74
Mounting- and Operating Instruction CEAG DualGuard-S 40071860347 January 2020 www.ceag.de
35 3-PM-IO-INV Module
Bus connection 3-PM-IO, 3-PM-IO-INV and
TLS module
An RS485 bus is wired for data communication with exter-
nal bus modules.
The wires of the RS 485 bus line must be connected to
the ACU DG terminal strip at the terminal points RS485 A,
RS485 B, +24V OUT and -24V OUT.
NOTE!
A parallel connection of data lines is not permitted and
does not extend the permissible line length.
Wires within a shield can be connected in parallel to supply
voltage to the modules.
ATTENTION!
Bus topology: linear, double terminated (no stub lines per-
mitted). Cable type (minimum requirement): IY(ST)Y 4 x 2
x 0.8 mm (twisted pair, shielded) - the cable shield must
be connected to the SE terminals of each module and
must only be earthed in the DualGuard-S control cabinet.
The cable cross-section required for the 24 V bus voltage
depends on the cable length and the number of bus modu-
les (Umin = 19 V DC). Only one pair of wires may be used
as data cable within the shield - it is not permitted to bundle
several data cables within one shielded cable! The 120
Ohm terminating resistor is integrated in the modules and
can be activated by a bridge at terminals B1/B2.
L1
N1
L2
N2
L3
N3
L4
N4
N6
L7
N7
+24V-1
+24V-2
+24V-3
-24V-1
-24V-2
-24V-3
SE-IN
A-IN
B-IN
SE-Out
A-Out
B-Out
B2
B1
L5
N5
L6
L8
N8
PE1
PE2
Adresse
3-PM-IO
H
L
Sh1
+24.1
-24.1
A
B
Sh2
+24.2
-24.2
IN1.1
IN1.2
IN2.1
IN2.2
IN3.1
IN3.2
IN4.1
IN4.2
IN5.1
IN5.2
IN6.1
IN6.2
K1.COM
K1.NO
K1.NC
K2.COM
K2.NO
K2.NC
K3.COM
K3.NO
K3.NC
K4.COM
K4.NO
K4.NC
HMI
ETN
+24.3
-24.3
IN7.1
IN7.2
IN8.1
IN8.2
K5.COM
K5.NO
K6.COM
K6.NO
ACU
H
L
A
B
L3
L2
N
PE
L1
9
© 2017 Eaton. All Rights Reserved..
I/O Module
Vertraulich. Nur zum internen Gebrauch.
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