Motorola V186 User Manual - Page 105

IP Ports (MDLC over IP), Toolkit User Guide.

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Communications IP Ports (MDLC over IP) ACE3600 RTUs can use IP (Internet Protocol) technology to interface to advanced radio infrastructure (e.g. TETRA or GPRS) and to standard private IP networks. Most benefits of the MDLC protocol are preserved. MDLC and IP networks can be integrated in the same system, as networking properties are preserved. MDLC applications need not be modified as the lower layers of the protocol support IP. MDLC packets to be transmitted are enveloped inside UDP/IP datagrams and sent between remote RTUs or between an IP Gateway and an RTU over UDP port 2002. The UDP Port number is configurable for each port. The ACE3600 RTU can have several MDLC over IP ports, each identified by its own link ID: MDLC over RS232 PPP ports, and MDLC over LAN/Ethernet ports that can have static or DHCP addressing modes. In some cases it is required that an MDLC over IP port have more than one link ID. Each MDLC over IP port has its own unique link ID. An IP address identifies each port, and is set by the user in a static LAN port (fixed IP address). For DHCP and PPP this address is learned automatically (dynamic IP address), and the user does not need to define it. A PC running STS can be connected to one of the RTU ports, to one of the serial ports of the IP Gateway, FEP or to the Ethernet. An MDLC over IP port can be used in one of four ways: 1. ACE3600 RTU port connected to a packet data radio/modem over PPP (Point to Point Protocol). The RTU can act as a remote unit or as a front end serving a SCADA control center (over PLC or user port). 2. ACE3600 RTU port connected to a LAN through one of its on-board or plug-in Ethernet port. A direct LAN connection exists between the Ethernet port and the radio infrastructure. The RTU an act as a remote unit or as a front-end, serving a SCADA center. This port can be configured as static LAN or as DHCP LAN. 3. ACE3600 FEP connected to LAN. An FEP serves as a front-end for a TCP/IP based SCADA central and enables it to communicate with remote RTUs. The FEP can use MODBUS over RS232 or any other propriety protocol over RS232 or LAN to communicate with the SCADA. If a LAN is used, the 'C' Toolkit socket (user protocol over IP) functions provide that functionality. The ACE36000 RTU can use a direct LAN port connection with other RTUs over the radio infrastructure. It can also be connected with a packet data modem/radio over PPP. For information on the 'C' Toolkit socket functions, see the ACE3600 RTU 'C' Toolkit User Guide. 101

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Communications
IP Ports (MDLC over IP)
ACE3600 RTUs can use IP (Internet Protocol) technology to interface to advanced radio
infrastructure (e.g. TETRA or GPRS) and to standard private IP networks. Most benefits
of the MDLC protocol are preserved. MDLC and IP networks can be integrated in the
same system, as networking properties are preserved. MDLC applications need not be
modified as the lower layers of the protocol support IP.
MDLC packets to be transmitted are enveloped inside UDP/IP datagrams and sent
between remote RTUs or between an IP Gateway and an RTU over UDP port 2002. The
UDP Port number is configurable for each port.
The ACE3600 RTU can have several MDLC over IP ports, each identified by its own
link ID: MDLC over RS232 PPP ports, and MDLC over LAN/Ethernet ports that can
have static or DHCP addressing modes. In some cases it is required that an MDLC over
IP port have more than one link ID.
Each MDLC over IP port has its own unique link ID. An IP address identifies each port,
and is set by the user in a static LAN port (fixed IP address). For DHCP and PPP this
address is learned automatically (dynamic IP address), and the user does not need to
define it.
A PC running STS can be connected to one of the RTU ports, to one of the serial ports of
the IP Gateway, FEP or to the Ethernet.
An MDLC over IP port can be used in one of four ways:
1.
ACE3600 RTU port connected to a packet data radio/modem over PPP (Point to
Point Protocol). The RTU can act as a remote unit or as a front end serving a
SCADA control center (over PLC or user port).
2.
ACE3600 RTU port connected to a LAN through one of its on-board or plug-in
Ethernet port. A direct LAN connection exists between the Ethernet port and the
radio infrastructure. The RTU an act as a remote unit or as a front-end, serving a
SCADA center. This port can be configured as static LAN or as DHCP LAN.
3.
ACE3600 FEP connected to LAN. An FEP serves as a front-end for a TCP/IP
based SCADA central and enables it to communicate with remote RTUs. The FEP
can use MODBUS over RS232 or any other propriety protocol over RS232 or
LAN to communicate with the SCADA. If a LAN is used, the ‘C’ Toolkit socket
(user protocol over IP) functions provide that functionality. The ACE36000 RTU
can use a direct LAN port connection with other RTUs over the radio
infrastructure. It can also be connected with a packet data modem/radio over PPP.
For information on the ‘C’ Toolkit socket functions, see the ACE3600 RTU ‘C’
Toolkit User Guide.
101