37
Settings for Sending FINS Commands Section 3-4
FINS command by Host Link communications, then put the source ad-
dress in the message.
2. Set the transmission destination address in the control code (C) operand
if sending the FINS command with CMND(490). If sending the FINS com-
mand by Host Link communications, then put the destination address in
the message.
Devices on Different Networks
Note 1. The transmission source address will be automatically incorporated into
the frame if the FINS command is sent with CMND(490). If sending the
FINS command by Host Link communications, then put the source ad-
dress in the message.
2. Set the transmission destination address in the control code (C) operand
if sending the FINS command with CMND(490). If sending the FINS com-
mand by Host Link communications, then put the destination address in
the message.
Unit Addresses Set the unit address for the following purposes:
• To identify the Unit when there is more than one device connected at the
same node on a network.
• To identify the type of device (CPU Unit, CPU Bus Unit, etc.) at the desti-
nation.
Note The meanings of FINS commands will vary depending on the Unit at the des-
tination even when the commands have the same command code. This is why
the Unit at the destination must be identified by the unit address.
Unit addresses are as follows:
• CPU Unit: 00 Hex
• CPU Bus Unit: Unit number + 10 hex
• Special I/O Unit:
Unit number + 20 hex
• Inner Board: E1 Hex (CS Series only)
• Computer: 01 Hex
• Communications Unit with the specified node address connected to net-
work with the specified network address (Controller Link or Ethernet):
FE Hex
Address level Source address (See note 1.) Destination address
(See note 2.)
FINS command
symbol
Example value FINS command
symbol
Example value
Network address SNA 01 Hex DNA 02 Hex
Node address SA1 01 Hex DA1 05 Hex
Unit address SA2 00 Hex DA2 00 Hex
Example
Node address 1
Node address 5
For CPU Unit
(00 Hex)
PLC
Network address 1
Network address 2
PLC
PLC
PLC
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