X2E OABR2CAN, Руководство пользователя

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User Manual OABR2CAN
19
Appendix
Technical specifications
Dimensions (H x W x D)
21 mm x 56 mm x 104 mm
Supply voltage 5 V to 28 V
Current consumption max 120 mA (at 12 V)
Current consumption (standby) max 4 mA (at 12 V)
CAN interface baud rate 100, 125, 250, 500 or 1000 kbit/s
CAN interface termination 120
Ω
Temperature range -40 °C to +65 °C
Message structure
The OABR2CAN Media Gateway wraps up to three SOME/IP messages in one Ethernet
packet. For the tunnelling of CAN messages, the SOME/IP header is defined as follows:
The complete identifier is encoded in the field CAN-ID in LSB-first order. The 29th Bit (la-
belled with e ) is an indicator for an Extended Identifier .
Examples:

Standard Identifier 0x3E

SOME/IP: 0x0000003E

Extended Identifier 0x6A

SOME/IP: 0x2000006A
Length refers to the area starting at bit position 64. If the SOME/IP message transports a
CAN-Payload of 8 Bytes, Length is 16 Bytes and the whole message is 24 Bytes long.
The fields Client ID and Session ID have to be filled with 0x0 when tunnelling with
SOME/IP, as defined by the specification.
Protocol Version is the SOME/IP version, currently 0x1.
Interface Version is currently 0x0.
Message Type is NOTIFICATION , so 0x2.
Return Code is OK , so 0x0.