Internal interfaces are the interfaces between a SW module and the central router module. All these
interfaces can be located in Fig. 1 below:
COM PORTS
MODULE
ROUTER
&
BRIDGE
MODULE
TERMINAL & MODBUS TCP
SERVERS
& TCP PROXY
RADIO
CHANNEL
MODULE
COM1
COM2
ETH
RADIO
virtual com/TCP
ethernet
Radio Modem Unit
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Fig. 7.15: Monitoring
•
The central router and bridge module acts as a standard IP router or bridge, i.e. decides to which
interface an IP packet goes next.
•
The COM ports module does the conversion from messages received over the serial ports to
UDP datagrams and vice-versa.
•
The Radio channel module wraps (unwraps) IP packets into radio channel frames and handles
all sorts of service frames.
•
Terminal servers process messages from/to virtual COM ports, transforming them into/from the
same UDP datagrams as the COM port module does. The Modbus TCP server similarly processes
packets of Modbus TCP(RTU) protocol - see the relevant application note (Modbus TCP/RTU)
for details. Since it is possible to monitor the messages from virtual COM and the resulting UDP
datagrams independently, the TSn and the Modbus TCP have two internal interfaces – distin-
guished as (com) and (router).
TCP proxy converts TCP datagrams to UDP ones, while maintaining the original TCP session
locally. The two internal interfaces can be used to independently monitor the TCP and UDP
sides on the (com) and (router), respectively.
■
Internal Errors and Warning displayed by monitoring
•
Errors (red background)
○ Requested monitoring data missing
Required data for monitoring are not available for an unknown reason.
Can be displayed on an independent line while any interface is being monitored.
○ RF preheader error
"RF-preheader" is a part of header transmitted by the most robust modulation.
Displayed while "RADIO" (Rx) interface is being monitored as part of a packet header.
○ RL header CRC error
"RL-header" is Radio Link protocol header.
Displayed while "RADIO" (Rx) interface is being monitored as part of a packet header.
○ Bridge stream datablock header CRC error
RipEX Radio modem & Router – © RACOM s.r.o.
146
Advanced Configuration
Summary of Contents for RipEX 1.6.0
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