BCM-MS, BCM-LS
4.4.2 Initial Operation With CAN Interface
The sensor comes standard with the RS232 enabled and CAN interface disabled. To permanently enable the CAN interface, the
sensor must be configured via RS232 port (command "WCOEN"). You can alternatively contact Bühler Technologies GmbH Ser-
vice.
On delivery, the CANopen interface of the sensor is configured as shown in this table:
CANopen interface default configuration
Parameter
Set value
RS232 command
Node-ID
0x64 (dec: 100)
WCOID
CAN baudrate
250 kbit/s
WCOSpd
Heart beat timer
1000 ms
WHBeat
TPDO1 ID
Node ID + 0x180 = 0x1E4 (dec: 484)
WTPDO1
TPDO2 ID
Node ID + 0x280 = 0x2E4 (dec: 740)
WTPDO2
TPDO3 ID
Node ID + 0x380 = 0x3E4 (dec: 996)
-
TPDO1 Type
255
WTPDO1Type
TPDO2 Type
255
WTPDO2Type
TPDO3 Type
= TPDO2 Type
-
TPDO1 Timer
5000 ms
WTPDO1Timer
TPDO2 Timer
5000 ms
WTPDO2Timer
TPDO3 Timer
= TPDO2 Timer
-
TPDO4 Timer (level sensors only)
= TPDO2 Timer
-
CAN enabled
0
WCOEN
Tab. 31:
CANopen default configuration
After configuring the CAN interface for the available CANopen network, the CAN interface of the sensor can be enabled and the
sensor can be connected to the CANopen network.
The process for communicating with the sensor via RS232 port with the CAN communication enabled, please refer to
4.4.3 Function Range Depending On Configuration
Depending on the desired functional range, the sensor can be configured with additional information to use the corresponding
functions. The table shown here contains a list of the necessary sensor configurations for the respective functional range. For in-
formation about configuring the sensor, please see chapter
Configuration For Automatic Condition Analysis
Configurations necessary for function range
Function range/scenario
Required system information/required configuration
– Basic parameters: Temperature, humidity, P, C, P40, C40
– Average temperature, load factor since starting sensor
– Short-term gradients
– Water content alarms, "Oil level low"
– No additional system information required
– High temperature alarms
– Limits for maximum and average temperature must be adjus-
ted for the application
– Detect contamination with other oils/fluids
– Long-term gradients
– Teach-in process must always be initialized with fresh oil
– Aging progress of characteristics (P40 and C40)
– Alarms for aging progress of limits
– Teach-in process must always be initialized with fresh oil
– Limits for P40 and C40 must be configured (if default configur-
ation insufficient)
– Predicted oil "Remaining Useful Lifetime"
– Teach-in process must always be initialized with fresh oil
– Limits for P40 and C40 must be configured (more information
available than specified by default configuration)
– System load factor and the associated oil lifetime must be
known
Tab. 32:
Function range depending on configuration
36
Bühler Technologies GmbH
BE150104 ◦ 03/2021
