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ICOM Overview - SOHOware v1.1 3
Popular Industrial Networking Protocols
Popular Industrial Networking Protocols
§ Ethernet/IP (Rockwell)
– Common Industrial Protocol (CIP) on top of
UDP/IP and TCP/IP
– Supports Explicit messaging (device to
device) and Implicit messaging (I/O)
§ Modbus/TCP (Modicon/Schneider)
– Implementation of Modbus on top of TCP/IP
– Polled (master/slave) architecture
– Can be implemented over UDP
§ Profinet (Siemens)
– Not Profibus over Ethernet
– Isochronous Real Time (IRT) available for
motion control applications
ICOM Overview - SOHOware v1.1 4
The Shortcomings of Commercial Products
The Shortcomings of Commercial Products
§ Operating environment
– Rated for operation above 104°F (40°C)?
– Will it work reliably around EMI/RFI noise?
– If it has a fan, when will it need to be replaced?
– Will it survive long-term mechanical shock/vibration?
§ Available power input
– What’s the cost of installing an low voltage AC/DC supply?
– Need to install an AC receptacle for a wall-mount transformer?
– How do you permanently fasten a wall-mount transformer?
– What’s to prevent the DC power plug from coming loose?
§ Physical mounting
– How do you mount the product to a DIN-rail, wall, or panel?
– What is the total installed cost of a DIN-rail or panel mount?
– When it is replaced by a new model, will the new model fit?
§ Safety certifications
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