Possible Errors When Packaging Digital Information; Figure 39: Output Process Data In The Frame Ioc  Iod; Figure 40: Input Process Data In The Profinet Io Frame Iod  Ioc - WAGO 750-370 Manual

84 Function Description
The digital submodule at slot 6 allocates an additional output data area of 1 byte.
The area of slot 2 is closed and remains unused. The free bits do not reach the
peripherals.
The figures below show the packaged user data in the real-time PROFINET IO
telegram each in the output and input direction.
Figure 39: Output Process Data in the Frame IOC  IOD
Figure 40: Input Process Data in the PROFINET IO Frame IOD  IOC
7.6.1.3

Possible Errors when Packaging Digital Information

When connecting, the fieldbus coupler checks the configuration of the node
(expected configuration) against the physical connected I/O modules (actual
configuration). Identified violations of the configuration rules are reported to you
in the form of module differences.
Process image optimization of digital information leads to module differences in
the following cases:
• Configuration of incorrect submodule types, i.e. one or more submodule
types does not match the I/O modules physically inserted. The module
status of the affected module slots is listed as "substitute", the submodule
status as "wrong".
• In one or more sections, the data volume provided by the configured
allocating submodule types is inadequate to meet the requirement for
process data of the following non-allocating submodule types. For these
modules, the module status "proper module" and submodule status "wrong"
are entered.
Example of module differences:
A section consists of 6 modules.
The first submodule allocates 16 bits and of that occupies 2 bits. 14 bits are
still available.
The subsequent 5 submodules do not allocate and each requires 4 bits.
WAGO-I/O-System 750
750-370 PROFINET IO Fieldbus Coupler
Manual
Version 2.0.0