Overview
1. Overview
Figure 1:
Block circuit diagram
The module CAN-PN can link any PROFINET
®
IO-controller to a CAN network. The CAN-PN
gateway itself operates as a PROFINET IO-device with a maximum of 256 bytes input data and
256 bytes output data on the PROFINET IO bus.
The CAN-PN connects CAN modules with CANopen
®
(CiA
®
DS 301) or layer-2 (ISO 11898-1)
applications to e.g. a SIMATIC-S7.
The number of CAN participants is not limited by the gateway.
The CAN-PN module operates internally with an ARM
®
processor ERTEC200 type, which buffers
the CAN and PROFINET IO data in a local SDRAM. The firmware and configuration data are kept
in the Flash. Parameters are stored by means of a serial EEPROM.
The CAN high speed (ISO 11898-2) compatible CAN-interface allows a maximum data-transfer
rate of 1 Mbit/s.
The 100BASE-TX PROFINET-IO interface is compatible to IEEE802.3 and runs with 100 Mbit/s.
The PROFINET-IO as well as the CAN interface are electrically isolated.
According to standard, the PROFINET-IO interface is equipped with two RJ-45-sockets. An
Ethernet switch is integrated in the ERTEC200.
CAN is connected via a 5-pin COMBICON spring force plug.
The module can be configured via PROFINET IO configuration tool, e.g. the PLC SIMATIC
Manager or the TIA Portal. No additional configuration tools are required!
CAN-PN
Hardware Manual • Doc. No.: C.2920.21 / Rev. 1.4
Page 9 of 38
ERTEC200
Physical
CAN
Layer
ISO11898-2
EEPROM
Power Supply
24 V=
+5V=
+5V=
DC/DC
Converter
5-pole
Open style
Connector
Combicon 5.08
Power Supply
4 MB
Flash
32 MB
SDRAM
CAN Controller
SJA1000
PORT 1
RJ45
100BASE-TX
PORT 2
RJ45
100BASE-TX
LEDs
USB
Logic
P
R
O
F
IN
E
T
IO
Electrical Isolation
In-Rail-Bus
Connector
C
A
N
DIAG
USB-A
