Operation On The Interbus; General Information On Interbus; Outline Of The Commands And Data On The Interbus; General Command Information - Pepperl+Fuchs IDENT-I system P IPT FP Series Manual

IPT*-FP WITH U-P6-B5-V

Operation on the INTERBUS

7

Operation on the INTERBUS

7.1

General information on INTERBUS

The INTERBUS is a standardized field bus, which enables data exchange between PLCs, PCs,
operating and observation devices and also sensors and actuators.
For detailed information, reference should be made to the INTERBUS standard DIN 19258 and
to the current literature on the subject.
Note!
The INTERBUS Club publishes informational brochures and an INTERBUS product catalog.
7.2

Outline of the commands and data on the INTERBUS

The lower section assigns 5 words to each 16 bits (10 bytes) in the framework protocol of the
INTERBUS in both communication directions. It is restricted in this to the cyclic transfer of the
process data channel. This means:
• Even the instructions for the adjustment of the device are updated on every cycle.
• The parameter channel of the INTERBUS is not used.
• The control interface unit is designed as a remote bus station. The ID code is 03.
7.3

General command information

7.3.1

Software information

A command consists of the command code, a specified number of parameters, the toggle flag
and the data relating to the command. The command is entered in the output data field of the
master.
A response is read from the input data field of the master and consists of the echo of the
command code, a parameter, the toggle flag, the status, an execution counter and the read
data.
A number of commands do not use all the parameter and data fields. These unused data fields
are then ignored by the device. The input and output fields are constructed as follows:
Output data field:
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
...
Byte N
(defined by module selection)
Command code
Parameter/Toggle flag
Parameter
Parameter
Write data
...
Write data
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