Omron SYSMAC CS Series Operation Manual page 82

CS1-H CPU Unit Ver. 2.0 Upgrades
CPU Unit Ver. 2.0 or Later
Summary
FINS command
source
OR
Serial
connection
Network 1
This connection is not counted as a network l
Internal Structure
FINS header
ICF RSV GCT
GCT (Gateway counter: Number of allowed bridge passages)
The standard setting is 02 hex when sending, but this value can be
user-set up to 07 hex.
The count is decremented by one each time a network level is passed.
44
With the CPU Unit Ver. 2.0 or later CS/CJ-series CPU Units, it is possible to
communicate through 8 network levels max. (see note), including the local
network.
Note 1. FINS commands can only be sent across up to 8 network levels, however,
when the destination is a CPU Unit. FINS commands can be sent to other
destinations up to 3 network levels away.
2. CX-Net in CX-Programmer version 4.0 or higher must be used to set rout-
ing tables to enable communicating through 8 network levels.
3. A Gateway to the network via serial communications was not counted as a
level.
Compatible Networks
Only the following 2 kinds of networks can be used when communicating
through a maximum of 8 networks. The network levels can be combined in
any order.
• Controller Link
• Ethernet
Note Communications are restricted to a maximum of 8 networks through
DeviceNet and SYSMAC Link networks.
Configuration of Compatible Models
All of the CPU Units must be CPU Unit Ver. 2.0 or later CS/CJ-series CPU
Units. Also, the Gateway Counter Setting must be made with the CX-Net.
Level
count = 1
Network 2
evel.
The Gateway Counter (GCT) is in the FINS header of the FINS com-
mand/response frame. This counter value is decremented (−1) each time a
network level is crossed.
FINS Command Frame
Command code
Level Level
count = 2 count = 3
Network 4
Network 3
Section 1-6
Level
count = 4
Level
count = 7
Network 7
Network 8
Text
FINS command
destination