RACOM M!DGE3, Руководство пользователя

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Transparent protocol can be used when unit operates in Bridge mode only. All the traffic is bridged
transparently to M!DGE3 network.
Broadcast
List box {On; Off}, default = "On"
Some Master SCADA units sends broadcast messages to all Slave units. SCADA application typ-
ically uses a specific address for such messages. M!DGE3 (Protocol module) converts such message
to a customized IP broadcast and broadcasts it to all M!DGE3 units resp. to all SCADA units within
the network.
Broadcast address
Number {0 – 65535}, default = 255
The protocol address which is treated as broadcast address.
Address translation
List box {Mask; Table}, default = "Mask"
SCADA protocol address is translated to the IP address using either Mask (common rule for all
addresses) or Table (specific rule per address) type of conversion
Base IP / Mask
A part of Base IP address defined by this Mask is replaced by 'Protocol address'. The SCADA
protocol address is typically 1 byte long, so Mask 24 (255.255.255.0) is most frequently used. This
IP address is used as a destination IP address of the UDP datagram into which the serial SCADA
packet received from COM is encapsulated.
Destination UDP port
List box {Manual; COM1 – COM3; TS1 – TS5}, default = "COM1"
The same UDP port will be used for all destination. This UDP port is used as the destination UDP
port in UDP datagram in which serial SCADA packet received from COM is encapsulated. Default
UDP ports for COM or Terminal servers can be used or UDP port can be set manually. If the des-
tination IP address belongs to a M!DGE3 and the UDP port is not assigned to COM or to a Terminal
server or to any other special SW module running in the destination M!DGE3, the packet is discarded.
Protocol address (from)
This is the address which is used by SCADA protocol.
The typical Protocol address length is 1 Byte. Some protocols, e.g. DNP3 are using 2 Bytes long
addresses.
Protocol address (to)
Several consecutive SCADA addresses shall be translated using one rule.
IP address (base)
IP address to which Protocol address will be translated. This IP address is used as a destination
IP address of the UDP datagram into which the serial SCADA packet received from COM is encap-
sulated. When several addresses are used, this will be the first IP address, the following one will
have +1 etc.
M!DGE3 Cellular Router – © RACOM s.r.o. 48
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