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-
O
ut
A-
O
ut
B-
O
ut
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.