The number of supported drives and devices depends on the type of the Sercos master and on the configured Sercos cycle time.
The Sercos cycle times listed in the following table are limit values. Depending on your application, you may have to adjust the cycle time to a lower value even though the maximum number of devices has not yet been reached.
The following matrix presents the interrelation between the type of Sercos master, the cycle time and the number of devices:
|
Sercos master |
Sercos cycle time |
Maximum number of Sercos drives |
Maximum number of Sercos devices (including Sercos drives) |
|---|---|---|---|
|
TM262M15 |
1 ms |
4 |
8 |
|
2 ms |
4 |
16 |
|
|
4 ms |
4 |
16 |
|
|
TM262M25 |
1 ms |
4 |
12 |
|
2 ms |
8 |
16 |
|
|
4 ms |
8 |
24 |
|
|
TM262M35 |
1 ms |
8 |
16 |
|
2 ms |
16 |
24 |
|
|
4 ms |
16 |
40 |
If the maximum number of drives or devices is exceeded, it is not possible to transition to communication phases CP3 and CP4.