15
LED
State
Description
yellow
off
• No ID tag in the field
• Faulty ID tag in the field
• Invalid ID tag in the field
red
on
CAN bus deactivated
flashes alternately with
green LED (2.5 Hz)
Configuration error
flashes alternately with
green LED (0.8 Hz)
Error in the CAN bus
flashes irregularly
LSS service activated
9 Operation
9.1 CANopen interface
The read/write head has a standardised CANopen interface according to CiA
DS-301. All measured values and parameters can be accessed via the object
directory (OD). The individual configuration can be saved in the internal
permanent memory.
The device is delivered with node ID 32 and a bit rate of 125 Kbits/s.
u
Only use cables approved for CANopen.
u
Terminate the cables using terminating resistors (120 Ω).
w
The ifm cable EVC492 contains integrated terminating resistors.
9.1.1 CANopen functions
The following
• 64 transmit and receive process data objects (
1.. 64, RPDO1.. 64) in two
possible operating modes:
– individual check via remote transmission request telegram (RTR)
– event-controlled transmission
• Error messages via emergency object (
– general error register
– manufacturer-specific status register
– error list