Echelon ISI - Manual (Page 112)

ISI Programmer’s Guide 110
Byte offset Data Type Field Name Note
N+5 unsigned Variant Variant number for the
offered connection. Variants
may be defined for any
device category and/or
functional profile/member
number pair. Variants
allow different
interpretations of the
offered data, based on a
variant value. Set to zero
unless otherwise known.
Values 1 – 127 are standard
variant values specified by
the ISI Protocol
Specification and by ISI
profiles published by
L ON M ARK International.
Values 128 – 254 are
available for use by
manufacturer-specific
connections.
Value 255 is reserved.
N+6 unsigned : 1 Extended.
Acknowledged
Normally cleared. For
regular CSMO, CSMA, and
CSMR messages, this field
is always zero. You must
specify isiFlagExtended
when starting the ISI
engine to use this field.
See text for special
considerations.
N+6 unsigned : 1 Extended.Poll Normally cleared. For
regular CSMO, CSMA, and
CSMR messages, this field
is always zero. You must
specify the isiFlagExtended
flag when starting the ISI
engine to use this field.
See text for special
considerations.