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2-15 Supplement
2
40
■ Example 4
In this example, a controller in a remote location is centrally managed over the Internet.
Internet
Internet
Internet
Head office
Router
1
2
3
4
5
6
HUB
PC
Use of a firewall (defense mechanism to keep out intruders) is recommended to maintain security.
System setup example
IP address
Head office router
133.215.0.1
PC
133.215.0.2
Factory 1 router
133.215.1.1
Controller 1
133.215.1.2
Factory 2 router
133.215.2.1
Controller 1
133.215.2.2
* Routers must be set to match system conditions.
* To make a connection over the Internet, a global address must be set in the IP
address.
* Use of identical addresses is not allowed so customers must not use the
addresses set in the above example.
Always use the customer's own unique address. NIC (in Japan, JPNIC) handles
the assigning and management of addresses.
1
7
8
Subnet mask
Gateway
255.255.255.0
255.255.255.0
133.215.0.1
255.255.255.0
255.255.255.0
133.215.1.1
255.255.255.0
255.255.255.0
133.215.2.1
Factory 2
Factory 2
Factory 2
Factory 2
Factory 2
Factory 1
Router
2
3
4
5
6
7
8
RCX240
MOTOR
OP.1
OP.3
PWR
SRV
RPB
RPB
ERR
XM
ROB
I/O
XY
YM
BATT
SEL
XY
COM
ROB
I/O
ZR
OP.2
OP.4
RGEN
ZM
BATT
STD.DIO
P
ZR
N
SAFETY
ACIN
L
RM
N
L1
N1
EXT.E-STOP
13 14
RCX series controller
HUB
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