Assignment Of The Control Interface - Siemens SIMATIC S7-1500 System Manual

High-speed output (0.4 A)
If you select the high-speed output option, the digital output is switched alternately to
24 V DC and ground. Allows for extremely steep edges (output delay in the 1 μs range).
To allow signals pending very briefly to be output with pulse width modulation (for example,
level duration of 0.1 ms), you must operate the output as a high-speed output.
The rated load is reduced from 0.5 A to 0.4 A with this operating mode.
Further information
You can find more information on the pulse width modulation operating mode in the
sections Assignment of the control interface (Page 191) and Assignment of the feedback
interface (Page 192).
9.9.9

Assignment of the control interface

Control interface
The user program uses the control interface to influence the behavior of the technology
inputs and technology outputs at interface X142.
The following table shows the control interface assignment:
Table 9- 10 Assignment of the control interface
Offset from Parameter
start address
Byte 0 SET_DQ (DQ0 to DQ7)
Byte 1 to 3 Reserved
Byte 4 to 7 TEC_OUT (DQ0)
Byte 8 to 11 TEC_OUT (DQ1)
Byte 12 to 15 TEC_OUT (DQ2)
Byte 16 to 19 TEC_OUT (DQ3)
Byte 20 to 23 TEC_OUT (DQ4)
Byte 24 to 27 TEC_OUT (DQ5)
Byte 28 to 31 TEC_OUT (DQ6)
Byte 32 to 35 TEC_OUT (DQ7)
SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD
Meaning
Set DQ (DQ0 to DQ7)
Must not be used
Timer DQ:
Byte 0, 1: OFF TIME (output time stamp for DQ reset)
Byte 2, 3: ON TIME (output time stamp for setting DQ)
Oversampling DQ:
Byte 0 to 3: 32 states for oversampling
Pulse width modulation (PWM):
Byte 0 to 3: PWM bit pattern
See Byte 4 to 7
9.9 Configuration of digital inputs/outputs (X142)
Configuring
191