
About the Anybus CompactCom 40 Modbus-TCP
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About the
Anybus CompactCom 40 Modbus-TCP
2.1
General
The Anybus CompactCom 40 Modbus-TCP communication module provides instant Ethernet
and Modbus-TCP connectivity via the patented Anybus CompactCom host interface. Any de-
vice that supports this standard can take advantage of the features provided by the module, al-
lowing seamless network integration regardless of network type.
This network guide covers the Transparent Ethernet version of the product.
Transparent Ethernet has to be enabled during setup, or the device will appear as
an Anybus CompactCom 40 with full IT functionality. The IT functionality is
described in the network guide for the standard Anybus CompactCom 40.
IT functionality is not available when Transparent Ethernet is enabled.
The modular approach of the Anybus CompactCom 40 platform allows the CIP-object imple-
mentation to be extended to fit specific application requirements. Furthermore, the Identity Ob-
ject can be customized, allowing the end product to appear as a vendor-specific
implementation rather than a generic Anybus module.
This product conforms to all aspects of the host interface for Anybus CompactCom 40 modules
defined in the Anybus CompactCom 40 Hardware and Software Design Guides, making it fully
interchangeable with any other device following that specification. Generally, no additional net-
work related software support is needed, however in order to be able to take full advantage of
advanced network specific functionality, a certain degree of dedicated software support may be
necessary.
2.2
Features
•
Transparent Ethernet
•
Two Ethernet ports
•
Ethernet connectors
•
10/100 Mbit, full/half duplex operation
•
Modbus-TCP server/slave (up to 4 simultaneous connections)
•
Max. read process data: 1536 bytes
•
Max. write process data: 1536 bytes
•
Max. process data (read + write, in bytes): 3072 bytes
•
Customizable Identity Information
•
Modular Device functionality
2.3
Transparent Ethernet
Transparent Ethernet offers the possibility for a host application, that includes an IT implemen-
tation (web pages, file system, a proprietary protocol etc.), to let the Anybus CompactCom han-
dle an industrial Ethernet protocol (in this case Modbus-TCP), without the need for extra
Ethernet ports.
Anybus
®
CompactCom
™
40 Modbus-TCP
®
Transparent Ethernet Network Guide
SCM-1202-022 1.1