Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 448

Host Link FINS Command Master
Command Frame Contents
Item
@ The @ symbol is automatically attached to the beginning of the command.
Host Link unit Specify the unit number for Host Link between 0 and 31 BCD.
number
Command code Specify a 2-character code. Always set "FA" (ASCII: 46, 41) when sending FINS commands. In this
protocol, "FA" is automatically generated.
Response wait The response wait time sets the time from when the CPU Unit receives a command block until it
time starts to return a response. This time is automatically set to "0" (ASCII: 30).
ICF (Information Specify whether or not there are network relays. ICF is automatically set to "80" (ASCII: 38,30) indi-
control field) cating that network relays are used.
RSV (Reserved) RSV is automatically set to "00" (ASCII: 30,30). Setting RSV is required only when sending to a CPU
Unit on a network.
GCT (Gateway This is the number of networks through which the transmission can be relayed. "02" (ASCII: 30,32) is
count) automatically generated.
DNA (Destination Specify the network, node, and unit addresses of the remote destination node.
network address)
DNA (Destination Network Address)
DA1 (Destination
Set between 00 and 7F Hex (0 and 127 decimal). The network address (DNA) setting is required to
node address)
specify the node address on the specified network.
DA2 (Destination
DA1 (Destination Node Address)
unit address)
Set in hexadecimal. The setting range depends on the network type. Set to 00 hex as the local node
when sending commands to a PLC slave directly connected using serial communications.
DA2 (Destination Unit Address)
Set the address of the device on the FINS network (e.g., CPU Unit, Special I/O Unit, personal com-
puter).
CPU Unit: 00 hex
CPU Bus Unit: Unit number + 10 hex
Example: Set 13 hex for unit number 3.
Special I/O Unit (except C200H Special I/O Units): Unit number + 20 hex
Example: Set 23 hex for unit number 3.
SNA (Source net- Specify the source network and node addresses. These settings are set to "00" (ASCII: 30, 30)
work address) regardless of whether or not there is a network relay.
SA1 (Source node
address)
SA2 (Source unit Specify the unit address of the unit at the PLC slave that is connected to the PLC master. SA2 is
address) automatically set to "00" (ASCII: 30, 30) to indicate the CPU Unit. When "00" is set, internal process-
ing converts the value to the unit address of each serial port.
SID (Service ID) The SID is used as a counter when resending. It is automatically set to "55" (ASCII: 35, 35).
Command code, Set the command code and text according to the FINS command and response formats.
text
FCS (frame check A 2-character FCS is automatically set.
sequence)
Terminator The terminator is a required delimiter at the end of a command. The terminator is automatically set
to *CR (ASCII: 2A, 0D).
Response Frame Contents
Item
@ The @ symbol is automatically attached to the beginning of the response.
Host Link unit num- The same unit number and header code specified in the FINS command that was received will be
ber, header code returned.
ICF (Information For a CPU Unit on a network, "C0" (ASCII: 43, 30) will be returned.
control field)
RSV (Reserved) This section is reserved for the system. Set "00" (ASCII: 30,30).
GCT (Gateway The same GCT that was specified in the command that was received will be returned.
count)
Contents
Contents
Appendix D
419