Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 936

15
C+3
Destination node address (See note 5)
00 to maximum node address (hex)
(Depends on the network.
Example: In the case of Controller Link,
15 12 11
C+4
Response needed / not needed (See note 7)
#0: Response needed
#8: Response not needed
15
C+5
Note 1 Refer to the operation manual for the specific network for the maximum data lengths for the command data and
response data. For any FINS command passing through multiple networks, the maximum data lengths for the com-
mand data and response data are determined by the network with the smallest maximum data lengths.
If response data longer than the number response data bytes is returned, the response data is not stored. If response
data shorter than the number of response data bytes is returned, the response data is received and the remaining
area remains unchanged.
2 The following two methods can be used to send a FINS command to a host computer through a serial port with the
host link host link while initiating communications from the PLC, or the serial gateway function (converted to Compo-
Way/F, Modbus-RTU, or Modbus-ASCII).
1) Set the destination unit address (bits 00 to 07 of C+3) to the unit address of the CPU Unit or Serial Communica-
tions Unit/Board and set the serial port number (bits 08 to 11 of C+2) to 1 for port 1 or 2 for port 2.
Unit address
(C+2, bits 00 to 07)
00 hex
10 hex + unit number
E1 hex
2) Set the source unit address directly into bits 00 to 07 of C+2. In this case, set the serial port number in bits 08 to 11
of C+1 to 0 for direct specification.
• Serial Communication Unit Ports
Port
Port 1
Port 2
• Serial Communication Board Ports
Port
Port 1
Port 2
CS/CJ/NSJ Series Instructions Reference Manual (W474)
8 7 0
Destination unit address (See note 6)
#00 to FE hex
#00 to 20 hex (0 to 32))
#FF: Broadcast
8 7 4 3 0
Resend times
#0 to F (0 to 15)
#0 fixed
Logical port number
#0 to 7 (#F: automatic allocation)
0
Response Timeout
&1 to 65535 decimal (#0001 to FFFF hex)
0.1 to 6553.5 sec
#0000: 2s (default value)
Unit
CPU Unit
Serial Communications Unit
(CPU Bus Unit)
Serial Communications Board
(Inner Board) (CS Series only)
Port's unit address
80 hex + 4 unit number
81 hex + 4 unit number
Port's unit address
E4 hex (228 decimal)
E5 hex (229 decimal)
Serial port number
(C+1, bits 08 to 11)
1 hex Built-in RS-232C port
2 hex Peripheral port
1 hex Port 1
2 hex Port 2
1 hex Port 1
2 hex Port 2
Example: Unit number = 1
80 + 4 1 = 84 hex (132 decimal)
81 + 4 1 = 85 hex (133 decimal)
3. Instructions
3
Serial port
899