FANUC Robotics America GFK-1541B - Manual (Page 163)

5-14 TCP/IP Ethernet Communications for the Series 90™ PLC User's Manual – May 2002 GFK-1541B
5
Consumed Data Exchange Definition
The information to be received by the consumer and the exchange details are defined in the
Consumed Exchanges tab of the Ethernet Global Data dialog box.
The consumed data exchange definition contains the following information:
Field Details
Local Producer ID A value in the form of a dotted-decimal IP address that uniquely
identifies the Ethernet Global Data device across the network. For Series
90-70 PLCs, the default is the same as the IP address of the Ethernet
Interface closest to the CPU in the main rack. For Series 90-30 PLCs,
the default is the same as the IP address of the CPU364 or CPU374
Embedded Ethernet Interface. The default value can be changed.
Adapter Name Identifies the adapter name of the Ethernet Interface within the
consuming device. For the CPU374, this field is not editable and displays
the rack and slot of the CPU.
Exchange ID A numerical value assigned by the user to identify a specific data
exchange to be received by the consuming device. It must match the
Exchange ID specified in the produced exchange.
Remote Producer ID Identifies the Producer ID of the PLC producing the exchange.
Group ID Used only if the same data is consumed by more than one consuming
device (the same group ID must also be assigned in the produced data
exchange definition).
Consumer Period (For the CPU374, this field is not editable as there is no consumer
period.) A value with a possible range of 10–3,600,000 milliseconds (10
milliseconds to 1 hour) that specifies how often the consuming device
should scan the local Ethernet Interface for new data and/or status
updates. The actual scan time may be affected by the logic sweep time.
Scanning the data will not interrupt normal logic sweep execution. For
peak efficiency, the consumer period should be set to the same value as
the Producer period in the corresponding produced data exchange
definition. The default is 200 milliseconds.
Round this value to the nearest 10 milliseconds before you enter it. The
consumer period has a resolution of 10 milliseconds. If you enter a value
such as 12 milliseconds, the actual consumer period will be rounded up
to 20 milliseconds.
Update Timeout A value with a possible range of 0, 10–3,600,000 milliseconds that
specifies how often the Ethernet Interface should declare the occurrence
of a refresh error. The error signals when a first or subsequent packet of
data does not arrive within the specified time. It is recommended that the
value be at least double the producer’s producer period value and 20
milliseconds greater than the consumer period to allow for transient
network delays. The default is 0 indicating no timeout is used.
Round this value to the nearest 10 milliseconds before you enter it. The
update timeout has a resolution of 10 milliseconds. If you enter a value
such as 22 milliseconds, the actual update timeout will be rounded up to
30 milliseconds.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete