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Overview
Hardware Manual • Doc.-No.: C.2930.21 / Rev. 1.5
DN-DP
Page 8 of 21
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1. Overview
Fig. 1: Block circuit diagram
The DN-DP module can link any PROFIBUS
®
DP master to a DeviceNet
TM
network. The DN-DP
gateway operates as a PROFIBUS DP slave-I/O component.
At the DeviceNet network the DN-DP gateway can operate as a scanner to control several DeviceNet
slave devices or as a single slave device to be connected to one DeviceNet scanner.
The DN-DP module is always configured via a PROFIBUS DP master.
As a DeviceNet scanner, several DeviceNet slave devices can be addressed. The maximum number is
between 20 and 40. This number depends on the configured PROFIBUS DP slave I/O type of each
DeviceNet slave device. Up to a total of 312 user data bytes can be configured for each DeviceNet slave
device. For each direction up to 240 user data bytes can be set up.
At the configuration of the DN-DP Gateway as DeviceNet Slave the DN-DP gateway can be configured
as exactly one single DeviceNet slave. With this configuration, it can be connected to exactly one
DeviceNet scanner.
With the DN-DP gateway you can couple DeviceNet modules to e.g. a SIMATIC-S7.
The DN-DP module is equipped with a PowerPC 405 EP, which buffers the CAN- and PROFIBUS
data into a local SDRAM. The firmware is stored in the Flash. Internal, fixed parameters are stored
in a serial EEPROM.
The DN-DP supports all DeviceNet compatible bit rates. The PROFIBUS DP Slave interface
