6 Configure the Operation Modes
For easy administration of connections via the PC Client Utility the NetCom Plus provides a DHCP
Server. This will assign a valid configuration to the Client Utility connection to the viaVPN system.
As the result the Client PC can connect to the NetCom
+
, and perform management operations.
The following parameters configure the operation of the DHCP Server.
Important Note: These parameters here do not influence the configuration in the local network
(LAN). They are effective only on the connection established by the Client Utility.
The
DHCP Server
may be
Disabled
.
But
Enabled
is the default and strongly recommended.
IP Address
,
Netmask
and
Broadcast
are properties of the NetCom
+
side of the viaVPN con-
nection. They behave in the same way as the parameters in the Server Configuration, see para-
graph
6.2.1.2 on page 63
.
Range Start
and
Range End
are the first (lowest) and last (highest)
value the DHCP Server will assign to the Client PC side of the viaVPN connection.
6.2.1.6 Modbus GPIO
This function is only available on the NetCom Plus 811 DIO device server. The signals are controlled
via Ethernet/Internet using Modbus/TCP. This protocol has TCP port 502 defined as standard
for operation, but it may be changed to a different value if the network configuration requires this.
The communication software must know the IP Address and TCP port.
ServerConfig
+--------------------+
|
Parameter
|
|
Wireless
|
|
OpenVPN
|
|
Modbus GPIO
|
|
Authentification
|
|
Date & Time
|
|
Info
|
+--------------------+
GPIO
Modbus TCP Port
[502
]
Figure 67: Modbus/TCP Network Parameter
The details of operating the input and output signals are specified in section
12 on page 123
. The
connection scheme for the signals, and their electric properties is given in section
3.5 on page 25
.
September 2016
NetCom Plus User Manual
70
