Siemens SIMATIC S7-1500 Manual page 39

Description of feedback bits
Feedback bit/value
ZSW1
Control_Requested
f_or_n_reached_or_
exceeded
Ready_To_Switch_On
Ready_To_Operate
Operation_Enabled
Fault_Present
Coast_Stop_Not_
Activated_OFF2
Quick_Stop_Not_
Activated_OFF3
Switching_On_Inhibited
NIST_B
ZSW2
Slave_Sign-Of-Life
G1_ZSW
Probe_1_Deflected
Requirement_of_
Acknowledge-
ment_Detected
Sensor_Error
Function_1_Active
Function_2_Active
Value_1_Active
Value_2_Active
Technology Module TM PTO 4 (6ES7553-1AA00-0AB0)
Manual, 12/2016, A5E38896703-AA
Description
This bit indicates that the module is ready to receive values from the user program for control-
ling the pulse output.
This bit indicates that the actual speed value has reached or exceeded the configured maxi-
mum speed.
This bit indicates that the pulse output is ready to switch on.
This bit indicates that the pulse output is ready to operate.
This bit indicates that operation of the drive is enabled and the speed setpoint is being output.
This bit indicates that a fault has occurred in the supply voltage or at a digital output. Error
code 1 is returned.
H
This bit indicates that the drive will not perform a Coast Stop (OFF2).
This bit indicates that the drive will not perform a Quick Stop (OFF3)
This bit indicates that the pulse output is not yet ready to switch on.
This value indicates the actual value of the drive axis velocity as a percentage in N4 format
relative to the reference speed.
When you control the module in isochronous mode using technology objects, this value is
used by the technology object as the Slave sign-of-life.
When you control the module without technology objects, this bit is set to 0.
When you use the "Measurement on the fly" function, this bit indicates the state of digital input
DIn.1.
This bit indicates that the acknowledgement of an error is being processed.
This bit indicates that an error has occurred during feedback of position value G1_XIST1. The
meaning of the returned error codes can be found in the following table.
If you use the "Reference mark search" function, this bit indicates that use of reference switch
input DIn.0 is enabled.
When you use the "Measurement on the fly" function, this bit indicates that use of the positive
edge of measurement sensing input DIn.1 is enabled.
This bit indicates that use of the negative edge of measurement sensing input DIn.1 is ena-
bled.
When you use the "Reference mark search" function, this bit indicates that the reference mark
has been saved in G1_XIST2 using reference switch input DIn.0.
When you use the "Measurement on the fly" function, this bit indicates that a measuring input
value has been saved in G1_XIST2 using the positive edge of digital input DIn.1.
This bit indicates that a measuring input value has been saved in G1_XIST2 using the nega-
tive edge of digital input DIn.1.
Configuring/address space
4.5 Control and feedback interface
39