PowerLogic™ Ethernet Gateway
63230-319-204A2
Setup
12/2008
© 2008 Schneider Electric. All Rights Reserved.
12
ENGLISH
Modbus TCP/IP Filtering
This function allows the administrator to specify Modbus TCP/IP client
devices that have or do not have access to serial slave devices connected
to the EGX.
NOTE: There is an anonymous Modbus TCP/IP address (***.***.***.***) that
can be set to Read-only or None. Setting it to Read-only allows any
Modbus TCP/IP client not in the filtered list to access serial slave devices
with read-only access. Setting it to None blocks all Modbus TCP/IP clients
not in the filtered list.
Action
Result
1. From the Setup page, click Modbus
TCP/IP Filtering.
Opens the Modbus TCP/IP Filtering page.
2. Check Enable Filtering.
Activates filtering.
3. In the IP address column, enter the
Modbus TCP/IP client address
Enters an IP address for a Modbus TCP/IP
client that will have access to the serial devices
connected to the EGX.
4. In the Access Level column, select Read-
only or Full.
Selects the access level for the corresponding
IP address. When set to Read-only, only the
following Modbus TCP/IP function codes are
allowed:
Decimal: 1, 2, 3, 4, 7, 8, 11, 12, 17, 20, 24,
43, 100
Hexadecimal: 01, 02, 03, 04, 07, 08, 0B, 0C,
11, 14, 18, 2B, 64
5. Repeat steps 3 and 4 to add more IP
addresses.
Continues adding IP addresses for filtering.
6. Click Apply.
Saves the Modbus TCP/IP address filtering list.
Figure 10:
Modbus TCP/IP Filtering Page
