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IDENT-I • IVI-KHD2-4HB5, IVI-KHA6-4HB5
Commissioning
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
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6
Commissioning
6.1
Preparation
Due to the complexity of field bus programming with the INTERBUS, it is, unfortuna-
tely, difficult to give a valid general description on how to perform the commissioning.
A very important aspect for the operation of an inductive identification system using
the control interface unit IVI-KHD2-4HB5/IVI-KHA6-4HB5 on the INTERBUS is the re-
sponse time of the total system. The question "How much time is required for data to
be available in my computer once the data carrier is positioned in front of the read/
write head?" can be determined from the design of the INTERBUS protocol, using the
following formula:
On larger projects, or in the event of limited experience in setting up a project with an
INTERBUS system, a test system should first be constructed for the particular appli-
cation, to test the transmission of data to the INTERBUS master.
Before proceeding with the commissioning, ensure that no danger to
the system can arise from the device, e.g. due to uncontrolled proces-
ses.
Check again all connections before proceeding with the
commissioning.
Prepare for the commissioning by familiarising yourself with the com-
munication between the INTERBUS master and the control interface
unit (Section 6 and 7 of this handbook). The commissioning requires a
good knowledge of the INTERBUS and the programming of the master
unit.
t
t
= transmission time
m = number of installed external bus stations
t
Bit
= bit length 3
t
Bit
= 2 µs at 500 kBit/s
t
sw
= software runtime
t
sw
= 200 µs
t
PH
= runtime on the transmission medium
for cupper t
PH
= 0,016 ms * I/km
I - length of the remote bus cable in km
The manufacturer-independent program "CMD" is available for plan-
ning, commissioning and diagnosing INTERBUS networks. For additio-
nal information regarding this program and other relevant INTERBUS
topics, contact :
INTERBUS-Club, Postfach 1108, 32817 Blomberg, GERMANY;
Telephone (+49)5235/342100, Fax (+49)5235/341234
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Bit
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SW
t
PH
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