891
Network Instructions Section 3-24
Variations
Applicable Program Areas
Operands S: First word of send message
Specifies the first word of the send message (S to S+3).
D: First word of received message
Specifies the first word of the received message (D to D+267 max.).
Variations Executed Each Cycle for ON Condition EGATR(721)
Executed Once for Upward Differentiation @EGATR(721)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
S0 0
8
111215
0
7
S+1 0 0
8
111215
07
S+2 0 0
8
111215
07
S+3 0 0
8
111215
07
Class ID (hex)
Instance ID (hex)
Attribute ID (hex)
Destination Node Address
00 to max. node address (hex)
(00 to 3F hex (0 to 63) for DeviceNet))
If the Attribute ID is not used, set it
to FFFF hex. (The Attribute ID
cannot be set to 0000 hex.)
D
0
15
D+1
D+267
15
0
...
Service Data
Contains the number of bytes of received service data from
words D+1 on. Does not include the 2 bytes in word D itself.
Includes only the number of bytes of Service Data starting at
D+1. (If the first or last word contains just one byte of data,
the empty byte in that word is not counted.)
Contains the response’s service data (data following
the service code). The byte-order of this data is
specified in bits 12 to 15 of C+1.
Can contain up to 534 bytes (267 words) of data.
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