Siemens Sinamics S110 Function Manual page 459

Designations and descriptions for Motion Control
Table 9- 36 Time settings and meanings
Name Value
T BB8 hex
BASE_DP
≐
3000 dec
T 4
DP
T 1
MAPC
T
SAPC
T BB8 hex
BASE_IO
≐
3000 dec
T 2
I
T 4
O
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Limit value
1)
-
T ≥ T
DP DP_MIN
T = 4
DP_MIN
T = 128
DP_MAX
n ∙ T
DP
n = 1 - 14
-
T ≤ T < T
I_MIN I DP
T = 1
I_MIN
T + T
DX O_MIN
≤ T ≤ T
O DP
T = 1
O_MIN
9.2 Communication via PROFIBUS DP
Time basis for T
DP
calculation: T = 3000 ∙ T
BASE_DP
T = 1/12 µs at 12 Mbaud
Bit
T corresponds to the largest current controller cycle (at
BASE_DP
least 250 µs) of a drive object (servo).
DP cycle time
T = integer multiple ∙ T
DP
calculation: T = 4 ∙ T
DP BASE_DP
Min. DP cycle time
calculation: T = 4 ∙ T
DP_MIN
Maximum DP cycle time
calculation: T = 128 ∙ T
DP_MAX
Master application cycle time
This is the time frame in which the master application generates
new setpoints (e.g. in the position controller cycle).
Calculation: T = 1 ∙ T
MAPC
Slave application cycle time
Time basis for T , T
I O
calculation: T = 3000 ∙ T
BASE_IO
T = 1/12 µs at 12 Mbaud
Bit
T corresponds to the largest current controller cycle (at
BASE_IO
least 250 µs) of a drive object (servo) in the drive unit.
Time of actual-value sensing
This is the time at which the actual position value is captured
before the start of each cycle.
T = integer multiple of T
I BASE_IO
calculation: T = 2 ∙ T
I BASE_IO
When T = 0: T = T
I I DP
Min. T
I
calculation: T = 1 ∙ T
I_MIN BASE_IO
T corresponds to the largest current controller cycle (at least
I_MIN
250 µs) of a drive object (servo) in the drive unit.
Time of setpoint transfer
This is the time at which the transferred setpoints (speed
setpoint) are accepted by the closed-loop control system after
the start of the cycle.
T = integer multiple of T
O
Calculation: T = 4 ∙ T
O BASE_IO
When T = 0: T ≐ T
O O DP
Minimum time distance between T
T = 1 ∙ T = 250 µs
O_MIN BASE_IO
Communication PROFIBUS DP
Description
= 250 µs
Bit
BASE_DP
= 1 ms
= 1 ms
BASE_DP
= 32 ms
BASE_DP
= 1 ms
DP
= 250 µs
Bit
= 500 µs
= 250 µs
BASE_IO
= 1000 µs
and T
O DX
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