Siemens SIMATIC ET 200SP Manual page 111

OUTPUT_VALUE
The interpretation of the value in OUTPUT_VALUE depends on the mode setting. The
OUTPUT_VALUE is always updated. If an invalid value is detected (outside the allowed
range), then the error flag ERR_OUT_VAL is set until a valid value is detected. During the
error condition, the invalid value is ignored and the module continues with the last valid
OUTPUT_VALUE.
Note that PWM ratio values are not checked. If a ratio value is higher than the format allows,
then a ratio of 100% is used by the module.
When the PWM current control option is activated, the TM Pulse 2x24V module takes control
of the duty cycle and the OUTPUT_VALUE control interface field is used to assign the target
current as a ratio of target current/reference current.
Pulse output
PWM
Pulse train
On/Off delay
Frequency output
DC motor
SLOT, MODE_SLOT, and LD_SLOT
The TM Pulse 2x24V module has a SLOT field in the control interface for each channel that
allows several parameters to be single-updated, or one parameter to be permanently
controlled (in addition to OUTPUT_VALUE). The interaction of SLOT, MODE_SLOT, and
LD_SLOT is described in the SLOT parameter handling (Page 113) topic.
SW_ENABLE
If 0 → 1, then activate the output sequence. For some output modes, you can configure
HW_ENABLE (hardware enable) to combine with SW_ENABLE (software enable) and
trigger an output sequence with a hardware signal.
TM_CTRL_DQ
● If 1, then outputs are controlled by the module and produce the pulse sequences.
● If 0, then the outputs are controlled directly by your program through SET_DQA and
SET_DQB assignments
Note: This bit has no effect in DC motor mode
Technology module TM Pulse 2x24V (6ES7138‑6DB00‑0BB1)
Manual, 09/2015, A5E35061186-AA
Mode
Pulse duration
High-speed disabled: 10 μs to 85,000,000 μs
High-speed enabled: 2 μs to 85,000,000 μs
Current control disabled: Duty cycle
Current control enabled: Ratio current
Number of pulses
On-delay in microseconds
Frequency in Hz
Duty cycle
Program control and feedback interface
6.1 TM Pulse 2x24V control interface
OUTPUT_VALUE meaning Data type
UDInt
UDInt: Only 2 least
significant bytes are
used For channel 0:
bytes 2 and 3
For channel 1: bytes 14
and 15
UDInt
UDInt
Real
DInt: Only 2 least signif-
icant bytes are used
For channel 0: bytes 2
and 3
For channel 1: bytes 14
and 15
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