Document Reference No.: ES_000008
S1-A-7001 RS232 to 1-Port CANbus Adapter User Guide
Version 1.2
Clearance No.: ES #03
©2009-10 EasySync Ltd.
5
1.2
LED Description
The S1-A-7001 uses three LEDs to indicate a valid link as well as CANbus status. The table below uses
the following LED definitions.
ON = LED constantly lit
OFF = LED is constantly not lit
Blinking = 2.5Hz, alternating ON and OFF
Single Flash = Short flash ON (200msec), followed by long off phase (1000msec)
Double Flash = Two short flashes on (200msec) separated by short off phase (200msec),
followed by long off phase (1000msec)
LED Color
Function
Description
Yellow
Power
Power LED
State
Description
Off
Inactive
No power is connected to the
S1-A-7001
On
Active
Power is connected to the S1-A-7001
Green
RUN
CAN Run LED
State
Description
Blinking
PREOPERATIONAL
The device initialized
Single flash
STOPPED
The device is in state STOPPED
(Channel is Closed)
On
OPERATIONAL
The device is in state OPERATIONAL
(Channel is Open)
Red
ERR
ERR LED State
Description
Category
Off
No error
The device is in working condition
Blinking
Invalid
Configuration
General configuration error
Single flash
Warning limit
reached
At least one of the error counters of
the CAN controller has reached or
exceeded the warning level (too many
error frames)
On
Bus off
The CAN controller is bus off, and not
involved in CANbus activities
Table 1.1 – LED Description
Upon initial power up, system reboot or executing the (R)eset command, the RED led will blink a number
of times depending on the baud rate of the RS232 port. See the “U” command in Section 4.1 for details.