Doc.Id. SCM-1200-093
Anybus Communicator for Modbus Plus
Doc.Rev. 3.01
Chapter 15
15. Advanced Fieldbus Configuration
15.1 General
The fieldbus interface of the gateway consists of an embedded Anybus-S communication interface. Nor-
mally, the Anybus-S configuration settings are set up automatically by the gateway. However, advanced
users can configure the Anybus-S card for specific features. This chapter assumes that the reader is fa-
miliar with the Anybus-S and it’s application interface. For more information about the Anybus-S plat-
form, consult the Anybus-S Parallel Design Guide.
The standard initialization parameters are determined by the subnetwork configuration. Information
about the amount of input and output data used for subnetwork communication is used by Anybus Con-
figuration Manager to create the configuration message that sets the sizes of the input and output data
areas in the Dual Port RAM of the embedded Anybus-S interface. It is possible to add fieldbus specific
mailbox messages to customize the initialization. This is done in the Mailbox Editor, see below.
(A mailbox message is a HMS specific command structure used for low-level communication with an
Anybus-S interface. Consult the Anybus-S Parallel Design Guide and the fieldbus appendix for the de-
sired fieldbus for further information.)
15.2 Mailbox Editor
To add a mailbox message to the configuration, right-click on
‘EndInit’ and select ‘Insert New Mailbox’.
A mailbox message consists of a Header sec-
tion and a data section where the Header con-
sists of 16 words (32 bytes) and the data
section consists of up to 128 words (256
bytes). All fields are editable except the Mes-
sage information field that is fixed to 0x4002,
which means that only fieldbus specific mail-
box messages can be entered here.
The mailbox message is presented as two col-
umns; one contains header information (A),
the other one contains the message data (B).
To add message data, simply change the Data
size parameter in the header column (A), and
the corresponding number of bytes will ap-
pear in the message data column (B).
For more information about fieldbus specific mailbox messages, consult the separate Anybus-S Fieldbus
Appendix for the fieldbus you are using. For general information about the Anybus-S platform, consult
the Anybus-S Design Guide.
A
B
Summary of Contents for Communicator Modbus plus
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