Temposonics
®
MH Digital
Operating Manual
I
17
I
Setting the Node ID
A number (node ID) must be assigned to each node. The number is used for identification of the node in a CANopen network. Each individual
node ID must be unique. The node ID CANopen is within a range of 1- 127, the node id CANopen Safety is within a range of 0 - 64, and can al-
ready be preset when ordering. To enable correct operation of the network, the node ID in the CAN bus must be unique.
The node ID of the sensor can be set using the following command sequence:
Data source
COB-ID
Data
Destination
Controller
0x7e5
04; 01; 00; 00; 00; 00; 00; 00
Sensor
Controller
0x7e5
11;
7d*
; 00; 00; 00; 00; 00; 00
Sensor
Sensor
0x7e4
11; 00; 00; 00; 00; 00; 00; 00
Controller
* Node address values within 1 and 127 are possible (e.g. 125).
Changes of the node address are effective immediately.
To save the node address permanently, the following command must be sent:
Data source
COB-ID
Data
Destination
Controller
0x7e5
17
Sensor
Sensor
0x7e4
17; 00; 00; 00; 00; 00; 00; 00
Controller
Setting the Baud Rate
The baud rate indicates the speed at which the sensor and the entire CAN bus are operated. Setting the same baud rate both for the sensor and
for the entire network is mandatory.
The maximum possible baud rate and thus the transmission capacity is limited by the cable length of the overall CAN network. The sensor is
delivered with a preset, order-dependent baud rate. If this baud rate must be changed, this can be performed via the LSS service.
Wire length
Baud rate [kBit/s]
Table index
< 25 m
1.000
00
< 50 m
800
01
< 100 m
500
02
< 250 m
250
03
< 500 m
125
04
< 1000 m
50
06
< 2500 m
20
07
< 5000 m
10
08
Fig. Baud rate depending on the cable length (CiA DS 301)
CANopen
While programming the node id only one user can be connected.