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Network Instructions
Section 3-25
Operands
C: First control word
The five control words C to C+4 specify the number of words to be received,
the source of the transmission, and other settings shown in the following table.
Note
1.
The maximum number of words allowed depends on the network being
used. For a Controller Link, the allowed range is 0001 to 03DE (1 to 990
words).
2.
Set the source network address to 00 to specify a source within the local
network. When two or more CPU Bus Units are mounted, the network ad-
dress will be the unit number of the Unit with the lowest unit number.
3.
Port numbers 1 and 2 indicate serial ports 1 and 2 (physical ports) of the
destination device.
4.
The unit address indicates the Unit, as shown in the following table.
5.
The maximum node number depends on the network being used. For a
Controller Link, the allowed range is 00 to 20 hexadecimal (0 to 32). Set
the source node number to 00 to transmit within the local node.
Word
Bits 00 to 07
Bits 08 to 15
C
Number of words: 0001 to maximum allowed
1
(4-digit hexadecimal)
C+1
Source network address:
00 to 7F (0 to 127)
2
Bits 08 to 11:Serial port number
(physical port)
1 hex:
Port 1
2 hex:
Port 2
(Do not set 0, 3, or 4.)
Bits 12 to 15: Always 0.
C+2
Source unit address
4
Source node address:
00 to maximum allowed
5
C+3
No. of retries: 00 to 0F (0 to 15)
Port number: 00 to 07
(F: Automatic allocation)
6
Response is fixed to “required.”
C+4
Response monitoring time: 0001 to FFFF (0.1 to 6553.5 seconds)
(The default setting of 0000 sets a monitoring time of 2 seconds.)
Unit
address
Unit
Serial port
number
Serial port
00 Hex
CPU Unit
1 Hex
Built-in RS-232C port
2 Hex
Peripheral port
10 Hex +
unit number
Serial Communications
Unit (CPU Bus Unit)
1 Hex
Port 1
2 Hex
Port 2
E1 Hex
Serial Communications
Board (Inner Board) (CS
Series only)
1 Hex
Port 1
2 Hex
Port 2
Unit
Unit address setting
CPU Unit
00 hex
CPU Bus Unit
10 hex + unit number
Special I/O Unit (except
C200H-series Special I/O
Units)
20 hex + unit number
Inner Board (CS Series
only)
E1 hex
Computer
01 hex
Unit connected to net-
work (not necessary to
specify Unit)
FE hex
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...