Table of Contents
Advertisement
2.6
LED Indication
The I-7530 provides the Converter function between the RS-232 port
and the CAN port. It can handle both an 11-bit and 29-bit ID format
according to whether it is a CAN 2.0A or 2.0B. In order to provide high
performance when converting data, the I-7530 has built in software FIFO
queues, which include 1000 CAN data frames. It also provides two LEDs
to indicate to users what situation the I-7530 is in. The ON LED indicator
establishes the power and operation situation simultaneously. If the
module is working in the operation mode, the ON LED is always turned on.
However, when the module is working in the configuration mode, the ON
LED will flash approximately once per second. The ERR LED is used for
demonstrating an error that has occurred. That is, the ERR LED is
normally turned off when the module works in a good condition. On the
other hand, when the BUS OFF error indicator of the CAN controller has
been alerted, the ERR LED will turn on. In this case, users can only reboot
the I-7530 module in order to turn off the ERR LED. If the CAN/RS232
FIFO overflows, the ERR LED will also be turned on. Furthermore, If users
want to check what the error situation is they must send the command
string "S[CHK]<CR>". Depending on the result, users will need to either
reboot the I-7530 or use the command string "C[CHK]<CR>" to clear the
FIFO flag, which will then turn off the ERR LED.
LED Name
Configuration Mode
ON LED
Operation Mode
ERR LED
Some errors occurred
I-7530 RS-232/CAN Converter User's Manual (Version 2.5, Mar/2012) ------------- 11
Figure 8: LED position
Table 3: LED indication
I-7530 Condition
LED Status
Flashes once per second
Turn on when no data needs
to be send to CAN bus
Flash once when sending a
CAN message
Always turned on
Advertisement
Table of Contents
