CAN 2.0A/B ↔ RS232/RS485 Converter

4.2 CAN Modes
The converter is in Listen Only mode or normal mode to operate.
L = 1 Listen Only Mode (read without ACK) L = 0 Normal Mode (read and write)
5 Normal Mode
If the converter powered on and the setup mode is not initiated within 5 seconds, it starts in
normal mode. In this mode, the communication of the CAN bus can be monitored (chapter:
5.2 Receive Data) and data be transmitted to the bus (chapter: 5.1 Sending Data).
5.1 Sending Data
All Data, sent from the computer to the COM port, will be output on the CAN bus.
The following formats are used:
ID CR space = $20 (Space "_") CR = $ 0D (Enter "") - ID without Data
ID space Data CR space = $20 (Space "_") CR = $ 0D (Enter "") - ID with Data
With the converter setting:
CAN-Identifier = 1F000000 (29 Bit CAN-Identifier)
the following data is output: (11 and 29 bit messages)
Input
Meaning
7E8_0001020304 CAN ID 7E8 Data 00 01 02 03 04 Data Length 5
7E8_0 CAN ID 7E8 no Data Data Length 0
7E8_01_01 CAN ID 7E8 Data 01 Data Length 1
1FFFFFFF_010203_03 CAN ID 1FFFFFFF Data 0102030 Data Length 3
10001234_0102_02 CAN ID 10001234 Data 01020 Data Length 2
With the setting:
CAN-Identifier = 1FF (11 Bit CAN-Identifier)
the following data is output: (only 11 bit CAN messages)
Input
Meaning
7E8_0001020304_05 CAN ID 7E8 Data 00 01 02 03 04 Data Length 5
7E8_0 CAN ID 7E8 no Data Data Length 0
7E8_01_01 CAN ID 7E8 Data 01 Data Length 1
In case of 11 bit ID no 29 bit ID messages will be sent!
5.1.1 Send Error
If data is sent in the wrong format to the converter through the USB/COM port, it can be recognized
by the converter response "S" (Enter "S" Enter).
e.g.: 1FFFFFFF_010
Converter response: "S"
(incomplete data, 0101 would be correct)