Omron SYSMAC CS Series Operation Manual page 45

CS-series Features
Remote Monitoring and Programming
1,2,3...
Remote programming/monitoring
of a distant PLC
Modem
Communications Across 3
Network Levels
Network 1
1. The host link function can operate through a modem, which allows moni-
toring of a distant PLC's operation, data transfers, or even online editing of
a distant PLC's program by phone.
2. PLCs in a network can be programmed and monitored through the Host
Link.
3. It is possible to communicate through 3 network levels even with different
types of networks.
Modem
Remote programming/monitoring of a PLC on a network up to 3 levels away
(including the local network) for the same or different types of networks is pos-
sible through Host Link.
Note With CS/CJ-series CPU Units Ver. 2.0 or later, remote programming/monitor-
ing is possible up to 8 levels away. Refer to 1-6-2 Improved Read Protection
Using Passwords for details.
Message transfer between PLCs on a network 3 levels away (including the
local network) for the same or different types of networks.
Remote programming/monitoring of a
PLC on the network through Host Link
Network 1
Network 2
Network 2
Section 1-2
Controller Link Network
Network 3
Network 3
7