Siemens Simatic S7-1500 CPU 1512C-1 PN - Configuring the PWM and Frequency Output Modes; Assignment of the Control Interface

Technology functions
3.2 Pulse generators
CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
Manual, 12/2017, A5E40898741-AA
69
3.2.3
Configuring the PWM and frequency output modes
3.2.3.1
Assignment of the control interface
The user program influences the behavior of the PWM channel through the control interface.
Control interface per channel
The following table shows the control interface assignment:
Table 3- 5 Assignment of the control interface
7
6
5
4
3
2
1
0
Byte 0
OUTPUT_VALUE
PWM: On-load factor * (Int)
In PWM mode, the on-load factor uses only the two least significant bytes (byte 2 and byte 3).
Frequency output: Frequency in Hz (Real)
Byte 1
Byte 2
Byte 3
Byte 4
SLOT
Byte 5
Byte 6
Byte 7
Byte 8 Reserved = 0 MODE_SL
OT
LD_SLOT
Specifies the meaning of the value under SLOT
0000: No action
0001: Period duration (PWM)
0010 to 1111: Reserved
Byte 9 Reserved = 0 Reserved
= 0
Reserved
= 0
SET_DQA Reserved
= 0
TM_CTRL_
DQ
SW_ENA
BLE
Byte 10 Reserved = 0 RES_ERR
OR
Byte 11
Reserved = 0
* The terms "On-load factor", "Pulse duty factor" and "Duty factor" can be used synonymously