Appendix
A.2 Tags of the positioning axis/synchronous axis technology object
S7-1500 Motion Control V13 Update 3
336
Function Manual, 07/2014, A5E03879256-AC
A.2.5
Sensor[n] tags (positioning axis/synchronous axis)
The tag structure <TO>.Sensor[n].<tag name> contains the controller end configuration for
the encoder, and the configuration for active and passive homing.
Tags
Tag
Data type Values
W
Description
Sensor[n].
ARRAY
[1..1] OF
STRUCT
Type
DINT
-
RES Encoder type
0: Incremental
1: Absolute
2: Cyclically absolute
InverseDirection
BOOL
-
RES Inversion of the actual value
FALSE: no
TRUE: yes
System
DINT
-
RES Encoder system
0: Linear encoder
1: Rotary encoder
MountingMode
DINT
-
RES Mounting type of the encoder
0: Incremental
1: Absolute
2: External
Interface.
AddressIn
UDINT
0 to 65535
RON Input address for the PROFIdrive frame
AddressOut
UDINT
0 to 65535
RON Output address for the PROFIdrive frame
Telegram
UDINT
-
RON PROFIdrive frame of the encoder
3: Actual values via drive frame
(NSET (32 bit), NACT (32 bit), actual encoder value,
signs of life)
5: Actual values from drive frame
(NSETP (32-bit), NACT (32-bit), actual encoder
value, sign-of-life, DSC)
81: Actual values via your own encoder telegram
(actual encoder value, signs of life)
83: Actual values via your own encoder telegram
(NACT (32 bit), actual encoder value, signs of life)
For the technology object of external encoders, only
frames 81 and 83 are valid.
(NSET - setpoint speed, NACT - actual speed value)
Parameter.
Resolution
LREAL
1.0E-12 to
1.0E12
RES Resolution of a linear encoder (offset between two
encoder pulses)
StepsPer
Revolution
UDINT
1 to 8388608
RES Increments per rotary encoder revolution