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Retries [No]
Default = 3 (min. 0, max. 7)
When DLE timeout is „On", and DLE packet is not received from the connected device (RTU)
within the set DLE timeout, RipEX retransmits the frame. The number of possible retries is
specified.
Priority
List box: Low, High
Default = Low
When the equipment sends STX and receives STX instead of DLE, there is a collision, both
equipments want to start communication. In such a case, one unit has to have a priority. If
the Priority is High, RipEX waits for DLE. When it is Low, RipEX send DLE.
NOTE: Obviously, two pieces of equipment which are communicating together must be set
so that one has High priority and the other has Low.
BCC
List box: On, Off
Default = On
BCC (Block Check Character) is a control byte used for data integrity control, it makes the
reliability higher. BCC is used by 3964R, 3964 does not use it.
RipEX checks (calculates itself) this byte while receiving a packet on COM. RipEX transmits
DLE (accepts the frame) only when the check result is OK. BCC byte is not transferred over
the RipEX network, it is calculated locally in the end RipEX and appended to the received
data.
■
SLIP
SLIP (Serial Line Internet Protocol) allows the Internet Protocol
3
(IP), normally used on Ethernet
4
,
to be used over a serial line
. SLIP modifies a standard IP packet by prepending and appending a
special SLIP END character to it, which allows packets to be distinguished as separate. SLIP requires
a COM port configuration of 8 data bits, no parity
and flow control
. SLIP does not provide error
8
, being reliant on other high-layer protocols for this. A SLIP connection needs to have its
9
configuration set each time before it is established.
Local IP
IP address assigned to COM port (local point of SLIP protocol) used for p-t-p communication
with Connected device. It has to be within the subnet defined by Peer IP and Peer IP mask.
Peer IP
This is IP address of Connected device (remote point of SLIP protocol) on the other end of
RS232.
Peer IP mask
Peer IP and Peer IP mask defines Subnet, which is routed into SLIP on respective COM.
NOTE: Peer IP and Peer IP mask defines IP subnet which is automatically routed to respective
COM. This subnet can not overlap with any other subnet in RipEX defined on Radio, ETH or VLAN.
3
http://dictionary.reference.com/browse/Internet%20Protocol
4
http://dictionary.reference.com/browse/Ethernet
5
http://dictionary.reference.com/browse/serial%20line
6
http://dictionary.reference.com/browse/parity
7
http://dictionary.reference.com/browse/hardware%20flow%20control
8
http://dictionary.reference.com/browse/error%20detection
9
http://dictionary.reference.com/browse/IP%20address
RipEX Radio modem & Router – © RACOM s.r.o.
158
Advanced Configuration
Содержание RipEX
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Страница 42: ... DQ Data Quality Min 180 PER Packet Error Rate Max 5 RipEX Radio modem Router RACOM s r o 42 Network planning ...
Страница 222: ...Fig 10 3 ATEX Certificate RipEX 2 3 RipEX Radio modem Router RACOM s r o 222 Safety environment licensing ...
Страница 223: ...Fig 10 4 ATEX Certificate RipEX 3 3 223 RACOM s r o RipEX Radio modem Router Safety environment licensing ...