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Configuration Extensions
372 SPU 780 01EMAN May 2002 109
8 Enter the value of the destination Unit ID in the Unit ID field. This is an identifier
for a pair of transactions (specifically Link Client/Server transactions). The
transaction pair must have matching Unit ID’s.
An example situation would include a single Server Write that sends data to the
matching Client Reads in a remote device. All Client Read transactions accept
the data sent from the single Server Write transaction as long as the Unit ID’s
match.
9 Enter a millisecond value representing the length of time to wait for a reply for
each transaction in the Health Timeout (0-50k) field.
10 Enter a millisecond value representing the length of time to wait before repeating
the transaction in the Repetition Rate (0-50k) field. A value of 0 indicates the
quickest possible rate.
11 Select one of the following functions from the Function drop-down list:
Read - A unilateral read in which a local device reads data from a remote
device.
Write - A unilateral write in which a local device writes data to a remote
device.
Read/Write - A unilateral read/write in which a local device reads data from
and writes data to a remote device.
Link Client Read - A paired function type in which a local device responds to
a write transaction from a remote device which must have a matching server
write.
Link Client Write - A paired function type in which a local device writes to a
remote device which must have a matching server read.
Link Client Read/Write - A paired function type in which a local device reads
and writes data to and from a remote device which must have a matching
server read and write.
Link Server Read - A paired function type in which a local device initiates a
read from a remote device. The remote device must have a matching client
write.
Link Server Write - A paired function type in which a local device writes to a
remote device. The remote device must have a matching client read.
Link Server Read/Write - A paired function type in which a local device reads
and writes data to and from a remote device which must have a matching
client read/write.
Note: For unilateral function types, no intervention is required for the remote
devices. They respond to any Read or Write without the need to set up an I/O
Scanner transaction. Linked function types require two complementary
transactions, on in each device.
Step Action