SMAR LC700 - Enet-700 - Modbus;Tcp 10 Base-T Ethernet Module; Description

Modules And Accessories
3.97
ENET-700 - Modbus/TCP 10 Base-T Ethernet Module
Part Number
ENET-700 (Modbus/TCP 10Base-T Ethernet Module)
Description
The Main objective for this Module is to allow the connection of an LC700 system to an Ethernet
network for local or remote communications. This new feature will allow multi-computer architecture
to access one or more LC700 and inter-net communications.
One side of the ENET-700 connects to the 10-Base-T network through the RJ-45 connector while
the other side must be connected to one of the serial ports in the CPU-700 Module. The ENET-700
allows selection between EIA-232-C and EIA-485.
Adding an ENET-700 Module to an LC700 system (it takes one slot of the Rack), the user can
access one or more of the CPU-700 Modules connected between them in a Multi-drop EIA-485
connection.
The ENET-700 Module will be responsible for the bridge between the Ethernet Modbus/TCP and the
Serial Modbus/RTU Channel in the CPU’s. Up to eight computers can access the ENET-700 at the
same time to communicate with a single CPU or any of the CPU’s in the EIA-485 Multi-drop link. On
the EIA-485 side we can have up to 31 CPU’s connected. The CONF700 has a special tool to
configure the ENET-700 Module. The user must set the IP Address, and serial channel parameters
to communicate with the CPU-700 Modules and parameters such as baud rate, 8 data bits, even
parity and 1 stop bit. The CPU-700 will need to agree with the configured baud rate.
The CONF700 is ready to work with the Modbus/TCP through the Ethernet Network. The user must
go to the menu Tools/Comm. Settings and set the protocol parameters in the dialog box. Please
note that by using one EIA-485 port (P2 or P3) on a 3-channel CPU, the user will still have 2 serial
ports available for other connections, if necessary!
The Ethernet redundant network is possible with the use of a second ENET-700 Module in the
LC700 system In this case another serial port (EIA-485) on the CPU should be used. This is
possible only if 3-channel CPUs are used.
NOTE
In case the connection of the DB9 port is permanent, the DB9-EXT cable must be used which
allows the user to close the front panel of the module.
Figure
3.63 - ENET-700 (Modbus/TCP 10Base-T Ethernet Module)