RACOM M!DGE3, Руководство пользователя

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Note
According to the DF1 specification, packets for the destination address 0xFF are considered
broadcasts. Hence when Broadcast is On, packets with this destination are handled as
broadcasts.
7.1.2.3.7. IEC101
Mode of Connected device
List box {Master; Slave; Combined}, default = “Master”
Note
For connected SCADA Master set Master, for connected SCADA Slave set Slave.
Address mode
List box {IEC101; 2B ADDR; TELEGYR; SINAUT; No addr}, default = “IEC101”
Broadcast
List box {On; Off}, default = "On"
7.1.2.3.8. Mars-A
MARS-A is a full duplex protocol featuring:
- 32bit long addresses
- error detection (based on 16 bit checksum (XOR) or 16 bit CRC)
- error correction
MARS-A was widely used by legacy RACOM radio modems in the MORSE system from the year 1999.
The new implementation of this protocol in M!DGE3 is limited to the parts of the complex protocol which
can be used together with modern packet type of radio routers:
USER DATA (0x09) from router to the serial interface (e.g. to RTU),
USER DATA (0x09) and PROT DATA (0x0A) from serial interface (e.g. from RTU) to the router.
Mars-A headers are removed from the packet prior to transmitting to the network - only data are
transmitted.
55 © RACOM s.r.o. – M!DGE3 Cellular Router
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