Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 1108

Network Instructions
1068
D: First word of received message
Specifies the first word of the received message (D to D+269 max.).
15
D
Contains the number of bytes of data from words D+1 on.
Does not include the 2 bytes in word D itself.
This value does include the leftmost bytes of D+1 and D+2, which contain 00.
This value also includes the number of bytes of Service Data starting at D+3.
(If the first or last word contains just one byte of data, the empty byte in that
word is not counted.)
15 12 11
D+1 0
Contains the Source node address.
(00 to 3F hex (0 to 63) for DeviceNet))
15 12 11
D+2 0
Contains the service code or error code (hex).
Normal response: Returns the command's Service Code with bit 07 ON.
Error response: Returns 94 hex, regardless of the command's Service Code.
15
D+3
to
D+269
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.
C: First control word
Specifies the first of four control words (C to C+3).
15
C
Set the total number of words of response data beginning at D.
The allowed setting range is 0 to 010E hex (270 words).
If the number of words of received data exceeds the value set here, a FINS error will
occur (response too long, code 11 0B) and no data at all will be stored (in the area
starting at D+3).
If the number of words of received data is less than the value set here, the remaining
words (in the area starting at D+3) will be left unchanged.
15 12 11
C+1
Byte order of service data (frame data) stored in areas beginning at S+6 and D+3
0 hex: Stored from leftmost byte (Left
8 hex: Stored from rightmost byte (Right
15
C+2
15
C+3
0
8 7 0
0
8 7 0
0
0
Service Data
0
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
Left Right
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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