Ethernet Communication (ISO on TCP) between SIMATIC S5 and
SIMATIC S7-1500 Controllers
Entry-ID: 109482475, V1.2, 07/2019
© Siemens AG
2019 All rights reserved
2.1.1 Installing the hardware for the S7-1500 station
For setting up the hardware, please proceed according to the following table:
• Connect the PC/PG to the SCALANCE switch via a
standard Ethernet cable (RJ 45).
Install the S7-1500
power supply
• Connect the power module to the power grid (220 /
230 V AC).
• The SIMATIC S7 PM module supplies all modules
required for the S7-1500 station.
• Expand the S7-1500 CPU 1516 with the PM module
via backplane bus connectors.
• Connect the Ethernet port X1 (RJ 45) to a port of the
SCALANCE switch.
• Connect the CP1543-1 to the CPU 1516-3PN via a
backplane bus connector.
• Connect the Ethernet port X1 (RJ 45) of the CP to
the SCALANCE switch via a standard Ethernet
cable (RJ 45).
• Connect the I/O modules to the CP1543-1 via
backplane bus connectors.
• Use an external 24V DC power supply to supply the
I/O modules with power.
2.1.2 Installing the hardware for the SIMATIC S5 station
For setting up the hardware, please proceed according to the following table:
Table 2-3
• Connect the PC/PG with STEP 5 being
installed to the SIMATIC S5 (CPU 944
and/or CP1430TCP) via the serial interface
and the PG-AG cable.
• Plug the power supply PS 7A/15A into the
backplane bus UR 1 of the SIMATIC S5
and connect it to the power grid (220 / 230
V AC).
• Plug RAM modules into the CPU 944 and
the CPU into the S5 backplane bus UR1 at
the CPU slot.
• Plug the CP1430 TCP into the S5
backplane bus UR 1 via an adaptation
capsule. Plug a RAM module into the
CP1430 TCP.
• Connect the 15-pin Ethernet connection of
the CP1430 TCP to the SCALANCE switch
via a TP cord cable (15-pin/RJ45).