1. Introduction
Interbus-S
4
1. Introduction
The communication module Option F2 (IFM9) allows
COMPAX-M/S to contact the Interbus-S by the company
Phoenix. The Interbus-S protocol is based on a summation-
frame message and is optimised for the cyclical and time
equi-distant transmission of process data. The summation-
frame message contains the information for or from all
participants and is simultaneously sent to or received from
all devices. The integration of parameter information in the
cyclical protocol occurs sequentially, i.e. longer data blocks
are broken down into individual, short information units and
inserted in order into the cyclical protocol.
1.1 Addressing
Addressing individual participants occurs via their physical
position in the ring and via central address lists held in the
Master. This removes the need for manual participant
addressing.
1.2 Bus connection
Each COMPAX-M/S with IFM-9 is a 2-cable remote bus
participant.
Connection to the Interbus-S occurs via the 2-cable remote
bus connection on the network module or on the COMPAX-
S.
Mains power module
The X6 connection (Interbus-S IN = incoming remote bus)
is connected via the pre-assembled ribbon cable with
Option F2 of the 1. COMPAX-M/S which is connected to
the network module. If additional COMPAX-M/S are
connected to the network module, the Interbus-S is set up
via ribbon cables from one device to the next.
The X7 connection (Interbus-S OUT = outgoing remote
bus) is connected with the IFM-9 of the last COMPAX-M
which is connected to the network module, if the ribbon
cable short circuit plug is inserted in this device.
1.2.1 The bus wiring
RS 485
POWER SUPPLY
Ξ6 Ξ7
Ξ8
Ρε αδ ψ Ερρορ
ΡΣ485ΙΝ ΟΥΤ
Χοντρολ
DIGITAL
Status Nu mber
X6
X8 X10
-+Enter
Ready Error
RS232
Inp ut
Output
Test
Contro l
X9 X11
Value
COMPAX-M
NMD COMPAX-M with option F2
SSC13/..
COMPAX-S with option F2
COMPAX-S
Στατυσ Νυµβερ
Ξ6
Ξ8 Ξ10
− +Εντερ
Ρε αδ ψ Ερρορ
ΡΣ23 2
Ινπυτ
Ουτπυτ
Τεστ
Χοντρολ
Ξ9 Ξ11
ςαλυε
Στατυσ Νυµβερ
Ξ6
Ξ8 Ξ10
− +Εντερ
Ρε αδ ψ Ερρορ
ΡΣ23 2
Ινπυτ
Ουτπυτ
Τεστ
Χοντρολ
Ξ9 Ξ11
ςαλυε
Siemens SPS Siemens SPS Siemens SPS Siemens SPS
X1 X2
24 V
GND
ERDE
RS 485
RS 485
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
E12
E13
E14
E15
E16
E17
E18
E19
E20
E21
E22
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
PLC
COMPAX-S with option F2
∆ΙΓΙΤΑΛ
Στατυσ Νυ µβε ρ
Ξ6
Ξ8 Ξ1 0
− +Εντερ
Ρε α δ ψ Ερρορ
ΡΣ232
Ινπυτ
Ουτπυτ
Τεστ
Χοντρολ
Ξ9 Ξ1 1
ςαλυε
COMPAX-M
∆ΙΓΙΤΑΛ
Στατυσ Νυ µβε ρ
Ξ6
Ξ8 Ξ10
−+Εντερ
Ρε α δ ψ Ερρορ
ΡΣ232
Ινπυτ
Ουτπυτ
Τεστ
Χοντρολ
Ξ9 Ξ11
ςαλυε
COMPAX-M
∆ΙΓΙΤΑΛ
Στατυσ Νυµβερ
Ξ6
Ξ8 Ξ1 0
− +Εντερ
Ρε α δ ψ Ερρορ
ΡΣ232
Ινπυτ
Ουτπυτ
Τεστ
Χοντρ ο λ
Ξ9 Ξ11
ςαλυε
COMPAX-M
COM PAX-S
The Interbus-S- signals are transferred along the
existing ribbon cable within a COMPAX-M system
network and a network module.
Cable plan SSK13/ :
9-way Sub-D-pin
plug shell with screwed
connection UNC4-40
1
6
2
7
housing
DI2
1
6
2
7
housing
SSC 13/..
1
5
6
9
9-way Sub-D-socket board
plug shell with screwed
connection UNC4-40
1
5
6
9
33
5 x 0,25mm + shield
2
5
9
DO2
DO2
DI2
DI1
DO1
DO1
DI1