HEIDENHAIN IOB 49 - Manual (Page 16)

16 I Operating Instructions
I – 3 Diagnostics
CSS
CSS DIAGNOSTICS shows the status of the communication via the
CAN bus and the state of the DAC output to provide monitoring of the
interfaces for operation with constant surface speed. The state of the
switching inputs and outputs is also shown.
 The CAN STATUS field shows the state of the bus communication
between the position display unit and the IOB 49.
The status information has the following meaning:
 The DAC OUTPUT field shows the current value of the transmitted
voltage. The value is between 0 and 4095, which corresponds to a
voltage of 0 to 10 V at X102-11. The corresponding CSS icon will be
displayed if the spindle speed is at the upper or lower limit (
or
).
 The CSS INPUT/OUTPUT field shows the state of the switching
inputs and relay outputs.
Information Meaning
NOT PRESENT No communication with hardware
NOR Communication – normal operation
CAL Communication – Hardware in calibration
mode
Wen Watchdog active
Wds Watchdog inactive
Wto Watchdog time-out
Tx Data is transmitted to hardware
Rx Data is received by hardware