RACOM RipEX 1.12.0, Руководство пользователя, Страница: 129 / 189

The RipEX expects a response to the RB packet within the set timeout. If it is not received, the
RipEX does not respond to RB packets from the Master received over the Radio channel.
• RTU address (Hex)
Default = 01
Active only when the Local simulation RB is On. The connected RTU’s address is supposed to be
filled in. This address (0x00-0xFF) is used in the RB packets generated locally in the RipEX and
transmitted over the COM.
Siemens 3964(R)
The 3964 protocol is utilized by the Siemens Company as a Point-to-Point connection between two
controllers. Meanwhile it has developed into an industry standard that can be found on many devices
as a universal communications interface. 3964R is the same as 3964, in addition it only uses BCC
(Block Check Character). 3964(R) handles only the link layer (L2 in OSI model), hence RipEX uses a
similar way to read “SCADA address” as in UNI protocol.
There is a handshake STX(0x02) – DLE(Ox10) on the start of communication and DLE+ETX – DLE
on the end. This handshake is performed by RipEX locally, it is not transferred over the RipEX network.
Communication goes as follows:
LocalRTU->STX->LocalRipex
LocalRipex->DLE->LocalRTU
LocalRTU->DATA+DLE+ETX+BCC->LocalRipex
LocalRipex->DATA->RemoteRipex*
LocalRipex->DLE->LocalRTU
RemoteRipex->STX->RemoteRTU
RemoteRTU->DLE->RemoteRipex
RemoteRipex->DATA+DLE+ETX+BCC->RemoteRTU
RemoteRTU->DLE->RemoteRipex
* only this packet is transferred over the RipEX network, all the other ones are handled locally.
Underlined parameters are described in Common parameters .
Mode of Connected device
Master
• Address mode
List box: Binary (1 B), Binary (2B LSB first). Binary (2B MSB first).
Default = Binary (1 B)
RipEX reads the Protocol address in the format and length set (in Bytes).
• Address position
Specify the sequence number of the byte, where the Protocol address
starts.
Note 1: 3964(R) protocol is using escape sequence (control sequence)
for DLE(0x10). I.e. when 0x10 is in user data, 0x1010 is sent instead.
When address position is calculated, the bytes added by escape se-
quence algorithm are not taken into account.
Note 2: The first byte in the packet has the sequence number 1, not 0.
Broadcast
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Advanced Configuration