DEUTSCHMANN AUTOMATION ROTARNOCK 100, Instruction Manual

Page: 48 / 58

Technical details Deutschmann Automation GmbH & Co. KG
48 Instruction manual ROTARNOCK 100 V. 3.6 4.12.20
8.9 DICNET
®
DICNET
®
( D EUTSCHMANN I ndustrial C ontroller Net ) is a multi-master-field bus whose physical
layer complies with the ISO-OSI Layer Model of DIN 19245, Part 1, i. e. a connection is estab-
lished between all users in the network with one RS485 two-wire line.
The physical arrangement is thus a bus system on which the users can be connected and dis-
connected as required.
Logically, the system comprises a Token Ring, i. e. only the user granted bus access authoriza-
tion (Token) may send on the bus. If this user has no data for another user, it forwards the token
to its neighbor which was determined in a configuration phase.
This principle achieves a deterministic bus cycle time, i. e. the time (worst-case) until a data
packet can be sent can be computed precisely.
Automatic reconfiguration occurs when a user is connected or disconnected.
The transmission baud rate is 312.5 kbaud with a length of 11 bits/byte. A maximum of 127 users
may be operated on one bus, whereby data packets of maximum 14 bytes per cycle can be sent.
An automatic check of the received information is conducted and an error message is issued
should a transmission error occur twice.
The maximum extent of the network may not exceed 500 m.
In order to avoid transmission errors, it must be ensured that both ends of the bus are terminated
correctly.
8.10 Communication interface
DEUTSCHMANN AUTOMATION encourages the use of cam controls with remote control and
display unit in order to meet market requirements.
Since different combinations of cam control and terminal have been required repeatedly, specific
to the particular application, it has been necessary to define a standard interface (communication
profile) supported by all terminals and cam controls from the DEUTSCHMANN AUTOMATION
range.
This makes it possible for each user to select the most suitable combination for his application.
By making the communication profile an open profile, this means that the user also has the
option of communicating with DEUTSCHMANN cam controls and thus using existing information
(encoder position, speed, ....) for his own applications or operating the cam control via his own
terminal.
Furthermore it is also possible to make the ROTARNOCK capable for fieldbuses with
Deutschmann UNIGATES (PROFIBUS, Interbus, CANopen, Ethernet, ...).
On request, we are able to supply information on this interface in the form of Manual "Communi-
cation profile for DEUTSCHMANN AUTOMATION cam controls".