Siemens SIMATIC ET 200SP - Page 149

Using the SSI_Absolute_Encoder technology object
4.4 Configuring SSI_Absolute_Encoder
Counting, measurement and position detection
148 Function Manual, 12/2017, A5E32009889-AG
Function of a digital output
(Page 48) in operating mode "Use
position value (SSI absolute val-
ue) as reference"
Meaning
Additional option-specific pa-
rameters
After set command from CPU until
comparison value
When a set command is sent from the CPU, the
respective digital output is active for the assigned
direction of the position value change until the posi-
tion value is equal to the comparison value or has
fallen below or exceeded it.
• Comparison value 0
• Comparison value 1
• Count direction
• Hysteresis (in increments)
Use by user program The respective digital output can be switched by
the CPU via the control interface (Page 43).
—
Note
You can only select the "Between comparison value
0 and 1" function for digital output DQ1
and only if you have selected the "Use by user program"
function for digital output DQ0.
Function of a digital output
(Page 52) in operating mode
"Use measured value as refer-
ence"
Meaning
Additional option-specific pa-
rameters
Measured value >= comparison
value
(default)
The respective digital output is active if the measured
value is greater than or equal to the comparison val-
ue.
• Comparison value 0
• Comparison value 1
Measured value <= comparison
value
The respective digital output is active if the measured
value is less than or equal to the comparison value.
• Comparison value 0
• Comparison value 1
Between comparison value 0 and
1
The digital output DQ1 is active if:
Comparison value 0 <= measured value <= compari-
son value 1
• Comparison value 0
• Comparison value 1
Not between comparison value 0
and 1
The digital output DQ1 is active if:
Comparison value 1 <= measured value <= compari-
son value 0
• Comparison value 0
• Comparison value 1
Use by user program The respective digital output can be switched by the
CPU via the control interface (Page 43).
—
Note
You can select the "Between comparison value
0 and 1" and "Not between comparison
value
0 and 1" functions only for
digital output DQ1 and only if you have selected the "Use by
user program" function for digital output DQ0.