
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and With Data Structure Type A
26
(translation of the original operating instructions) 2114575-06-02/21
13.2. Connections on the bus module
The bus module includes the PROFINET connections (X3 and X4) and the power supply connections (X1 and X2). Depending
on version, connection is made via push-pull plugs according to IEC 61076-3-117, variant 14, or 7/8" plugs according to
ANSI/B93.55M-1981 and M12 plugs (d-coded) according to IEC 61076-3-101.
The bus module includes a PROFINET RT switch for Ethernet connection.
13.2.1. Terminal assignment for version with push-pull plugs
X1
X2 X3
(PN2)
X4
(PN1)
1 2 3 4 5
1
8 1
8 1
2345
1L+ 2L+
1L+ 2L+
RJ45
Pin
Description
X3.1 Receive Data RD+
X3.2 Receive Data RD-
X3.3 Transmit Data TD+
X3.4 n.c.
X3.5 n.c.
X3.6 Transmit Data TD-
X3.7 n.c.
X3.8 n.c.
Pin
Description
X4.1 Receive Data RD+
X4.2 Receive Data RD-
X4.3 Transmit Data TD+
X4.4 n.c.
X4.5 n.c.
X4.6 Transmit Data TD-
X4.7 n.c.
X4.8 n.c.
Pin
Description
X1.1 L1 operating voltage DC 24 V
X1.2 N1 operating voltage 0 V
X1.3 L2 auxiliary voltage* DC 24 V
X1.4 N2 auxiliary voltage* 0 V
X1.5 Functional earth
* The auxiliary voltage is not required for the MGB
system
Pin
Description
X2.1 L1 operating voltage DC 24 V
X2.2 N1 operating voltage 0 V
X2.3 L2 auxiliary voltage* DC 24 V
X2.4 N2 auxiliary voltage* 0 V
X2.5 Functional earth
13.2.2. Terminal assignment for version with 7/8" and M12 plugs, d-coded
1
4
1
2
3
d-kodierung
(female)
(Buchse)
3
X1
(Stift / male)
X2
(Buchse / female)
X3
(PN2)
d-kodierung
2
3
4
5 5
4
3
1
2
1
4
X4
(PN1)
(Buchse)
(female)
2
M12
7/8"
M12
7/8"
Pin
Description
X1.1 N2 auxiliary voltage *0 V
X1.2 N1 operating voltage 0 V
X1.3 Functional earth
X1.4 L1 operating voltage DC 24 V
X1.5 L2 auxiliary voltage* DC 24 V
* The auxiliary voltage is not required for the MGB
system
Pin
Description
X2.1 N2 auxiliary voltage *0 V
X2.2 N1 operating voltage 0 V
X2.3 Functional earth
X2.4 L1 operating voltage DC 24 V
X2.5 L2 auxiliary voltage* DC 24 V
Pin
Description
X3.1 Transmit Data +TD
X3.2 Receive Data +RD
X3.3 Transmit Data -TD_N
X3.4 Receive Data -RD_N
Functional earth on plug housing
Pin
Description
X4.1 Transmit Data +TD
X4.2 Receive Data +RD
X4.3 Transmit Data -TD_N
X4.4 Receive Data -RD_N
Functional earth on plug housing