Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 1097

Network Instructions
Variations
Applicable Program Areas
Operands
Note
1058
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK OK
C: First control word
The six control words C to C+5 specify the number of bytes of command data
and response data, the destination, and other settings shown in the following
table.
Word Bits 00 to 07
C
Bytes of command data: 0002 to maximum allowed
C+1
Bytes of response data: 0000 to maximum allowed
C+2 Destination network address:
00 to 7F (0 to 127)
C+3 Destination unit address:
5, 7, 9
00 to FE
C+4 No. of retries: 00 to 0F (0 to 15)
C+5 Response monitoring time: 0001 to FFFF (0.1 to 6553.5 seconds)
(The default setting of 0000 sets a monitoring time of 2 seconds.)
1. The number of bytes of command data in C is 0002 to the maximum data
length in hexadecimal. For example, the number of bytes would be 0002 to
07C6 hex (2 to 1,990 bytes) for Controller Link systems. The number of
bytes for the local CPU Unit is 07C6 hex (1,990 bytes). The number of
bytes of command data depends on the network.
2. The number of bytes of response data in C+1 is 0000 to the maximum data
length in hexadecimal. For example, the number of bytes would be 0000 to
07C6 hex (0 to 1,990 bytes) for Controller Link systems. The number of
bytes for the local CPU Unit is 07C6 hex (1,990 bytes). The number of
bytes of response data depends on the network.
3. Refer to the operation manual for the specific network for the maximum
data lengths for the command data and response data. For any FINS com-
mand passing through multiple networks, the maximum data lengths for
the command data and response data are determined by the network with
the smallest maximum data lengths.
4. Set the destination network address to 00 to transmit within the local net-
work. When two or more CPU Bus Units are mounted, the network address
will be the unit number of the Unit with the lowest unit number.
Step program areas Subroutines
OK
Bits 08 to 11:Serial port number
4, 6 (physical port)
1 hex:
2 hex:
(Do not set 0, 3, or 4.)
Bits 12 to 15: Always 0.
Destination node number:
00 to maximum allowed
Bits 08 to 11:
Port number (internal logic port):
Bits 12 to 15: Response setting
Section 3-25
CMND(490)
@CMND(490)
Not supported
Interrupt tasks
OK
Bits 08 to 15
1
(4-digit hexadecimal)
1 to 3
(4-digit hexadecimal)
Port 1
Port 2
8
0 to 7
10
(F: Automatic allocation)
0: Response requested.
8: No response requested.
11