Manual

Installation 8
Doc.Id. HMSI-216-117
CM CANopen Module for SIMATIC S7-1200
Doc.Rev. 1.00
4.2 Status LEDs
Three status LEDs indicate the status of the module as shown in the table be-
low. The DIAG LED is visible on the front of the module and the other two
are found behind the lid at the top of the module. The behavior of the LEDs
is described in
“Status LED Timing Diagrams” on page 56
4.3 Maximum Cable Lengths
When designing the CANopen network, please take into account the maximum cable length for differ-
ent baud rates.
LED Indication Status
DIAG (red/green) Green Normal operation
Blinking green Hardware address not configured yet
Blink red CM bus error state.
Note: This LED only report errors on the
CM backplane bus. Diagnostic errors are
indicated by the error LED on the PLC.
ERR - CANopen
error (red)
Off Normal operation
Blinking General configuration error
Single flash Warning limit reached in CAN controller, for
example due to bad or no signal on the
CANopen network.
Double flash A nodeguard event or a heartbeat event
has occurred.
Triple flash Sync error. The sync message has not
been received within the configured com
-
munication cycle time
1 Hz Fatal error, contact support.
On The CAN controller is bus off.
RUN - CANopen
state (green)
Off No power, not configured or no CANopen
network
Blinking Pre-operational
Single flash Stopped
Triple flash Transparent CAN mode
On Operational
Baud rate (kilobaud) Maximum cable length (m)
20 2500
50 1000
125 500
250 250
500 100
800 50
1000 25