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Network Instructions
Operands
S: First word of send message
Specifies the first word of the send message (S to S+271 max.).
15
S
15
12
S+1
0
15
12
S+2
0
15
12
S+3
0
15
12
S+4
0
15
S+5
to
S+271
When there is Service Data (data other
than the Attribute ID), the byte-order of this
data is specified in bits 12 to 15 of C+1. Up
to 534 bytes (267 words) can be set.
C: First control word
Specifies the first of three control words (C to C+2).
15
12
11
C
Byte order of service data (frame data) stored in areas beginning at S+5
0 hex: Stored from leftmost byte (Left
8 hex: Stored from rightmost byte (Right
15
C+1
15
C+2
0
Set the number of bytes of source data from words S+1 on.
For example, set S to 0008 hex if there are 4 words of data
(S+1 to S+4). Do not include the 2 bytes in word S itself.
Include the leftmost bytes of S+1 to S+4, which contain 00.
Also, include the number of bytes of Service Data starting at
S+5. (If the first or last word contains just one byte of data, do
not count the empty byte in that word.)
11
8
7
0
0
Destination Node Address 00
to max. node address (hex)
(00 to 3F hex (0 to 63) for
DeviceNet)
11
8
7
0
0
Class ID (hex)
11
8
7
0
0
Instance ID (hex)
11
8
7
0
0
Attribute ID (hex)
If the Attribute ID is not used, set it
to FFFF hex. (The Attribute ID
cannot be set to 0000 hex.)
0
Service Data
8
7
0
FINS unit address of relaying Communications Unit.
CPU Bus Unit: 10 to 1F hex (unit number + 10 hex)
Special I/O Unit: 20 to 7F hex (unit number + 20 hex)
Port number of the communications port (logical port) for the
network instruction: 0 to 7 hex (F hex: Automatic allocation)
Right
Left
0
Response monitoring time
0001 to FFFF hex (0.1 to 6553.5 s)
0000 hex: 2 s (default setting)
0
Explicit message format
0000 hex: DeviceNet (same as using the 2801
FINS command)
Section 3-25
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