Profibus - Eaton Power Xpert C445 User Manual

The following output assemblies have been added as
extensions to the existing output Assemblies 104, 105 and
106. The Digital Output (DQ) data and Analog Output (AQ)
referenced below is what has been added to the existing
Output assembly it corresponds to. Output Assemblies
130 and 131 are new assemblies containing only digital
and analog output data. The data layout for each output
assembly can be found in the Ethernet/IP section of
Appendix C in this manual.
Output
1. Extensions of Output Assembly 104:
a. 123: 2 bytes DQ and 4 bytes AQ
b. 124: 4 bytes DQ and 12 bytes AQ
2. Extensions of Output Assembly 105:
a. 125: 4 bytes DQ and 8 bytes AQ
b. 126: 8 bytes DQ and 16 bytes DQ
3. Extension of Output Assembly 106:
a. 127: 2 bytes DQ and 4 bytes AQ
b. 128: 4 bytes DQ and 8 bytes AQ
c. 129: 8 bytes DQ and 16 bytes AQ
4. New Output Assemblies:
a. 130: 4 bytes DQ and 32 bytes AQ
b. 131: 8 bytes DQ and 64 bytes AQ
Note that all available registers are mapped in the Modbus
register map for each analog I/O module used. This is not the
case for Ethernet/IP and PROFIBUS. In order to keep the
amount of data to a minimum for these networks,
configuration of each module must be done using the Logic
Engine Programming software tool. A minimum amount of
data is provided for monitoring analog inputs and controlling
analog outputs.
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com
Chapter 9—C445 Logic Engine and Expansion I/O

PROFIBUS

For PROFIBUS, additional selections have been added for
the expansion I/O so the I/O modules can be monitored and
controlled by a PROFIBUS master controller along with C445
motor parameters. Per the following there have also been
two additional "Cyclic Modules" added to accommodate the
additional I/O data. If Expansion I/O is not used, these larger
"Cyclic Modules" shown below can be used to monitor
additional motor data as well.
1. Cyclic Module 16: a 32 byte input and 16 byte output
module
2. Cyclic Module 17: a 64 byte input and 32 byte output
module.
Note: "Cyclic Modules" are what the selectable I/O data
blocks in the GSD file are called. Motor and I/O data
are mapped to input and/or output addresses
assigned to these cyclic modules. Only two cyclic
modules can be used per C445 PROFIBUS module
with the following restrictions:
1. If 2 Cyclic Modules are assigned, only one may contain
output words.
2. The Motor Control bits shown cannot be assigned if the
Fieldbus Motor Control word is assigned. Below is an
example of the Motor Control bits unassigned and the
Fieldbus Motor Control word assigned to Cyclic Module
16, word 0.
3. If the Motor Control bits are assigned, they can only be
assigned to Cyclic Modules 4, 5, 6 and 8.
4. If the Motor Control bits are assigned, then the Fieldbus
Motor Control word should not be assigned as shown
below. The example below is using Cyclic Module 8. In
addition, when the Motor Control bits are assigned the
first output word to the C445 is a control word based on
the bit assignments. Subsequent word assignments
such as assigning the System Services or digital or
analog output words actually begin with the second
output word sent to the C445.
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