Toshiba T300MVi - Manual (Page 57)

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15.2 Ethernet/IP
The interface supports the Ethernet/IP protocol (release 1.0), administered by
the Open DeviceNet Vendor Association (ODVA).
•
This product has been self-tested by ICC, Inc. and found to comply with
ODVA Ethernet/IP Conformance Test Software Version A3.7.3.
•
Supports unconnected messages (UCMM), and up to 16 simultaneous
class 1 or class 3 connections.
•
Supports CIP point-to-point transport types in the originator-to-target
direction, and both point-to-point and multicast transport types in the
target-to-originator direction.
•
Supports only CIP “cyclic” transport triggers.
• Connection sizes are adjustable between 0 and 200 bytes (100 points @ 2
bytes per point = 200 bytes). Because point “value” attributes are 16-bit
elements, however, connection sizes cannot be odd (i.e. 1, 3, 5 etc.)
•
When data is consumed via a class 1 connection, if the actual consumed
data size is less than or equal to the connection’s configured consumed
connection size, then all received data will be consumed. If the actual
consumed data size is larger than the connection’s configured consumed
connection size, however, the consumed data will be ignored.
•
If a parameter entry in the consumed assembly member list is empty (i.e.
no parameter has been assigned to that location), then any consumed data
that corresponds to that location will be ignored. Conversely, if a
parameter entry in the produced assembly member list is empty, then any
produced data that corresponds to that location will be a default value of 0.
Refer to section 14.8.3 for further information on the assembly object
member lists.
•
The 32-bit run/idle header is required in the originator-to-target direction.
When using an originator that does not support the run/idle header, then
just send dummy data as the 1
st two words, as the interface ignores the
contents of the run/idle header. The interface does not send a run/idle
header in the target-to-originator direction.
•
Point-to-point class 1 connected messages will be produced targeting the
IP address of the device that instantiated the connection, port 0x08AE (port
2222).
•
If a class 1 connection’s consuming half (O=>T) times out, then the
producing half (T=>O) will also time-out and will stop producing.