Appendix
A.3 Tags of the technology object external encoder
S7-1500 Motion Control V13 Update 3
360
Function Manual, 07/2014, A5E03879256-AC
Tag
Data type Values
W
Description
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
FineResolution
Xist1
UDINT
0 to 31
RES Number of bits for fine resolution Gn_XIST1 (cyclic
actual encoder value)
FineResolution
Xist2
UDINT
0 to 31
RES Number of bits for fine resolution Gn_XIST2 (abso-
lute value of the encoder)
Determinable
Revolutions
UDINT
0 to 8388608
RES Number of differentiable encoder revolutions for a
multi-turn absolute value encoder
(For a single-turn absolute value encoder = 1;
for an incremental encoder = 0)
DistancePer
Revolution
LREAL
0.0 to 1.0E12
RES Load distance per revolution of an externally mount-
ed encoder
PassiveHoming.
STRUCT
Mode
DINT
-
RES Homing mode
0: Homing mark only
1: Homing mark and proximity switch
2: Digital input
SideInput
BOOL
-
DIR Side of the digital input for passive homing:
FALSE: Negative side
TRUE: Positive side
Direction
DINT
-
DIR Homing direction / homing mark approach direction
0: Current homing direction
1: Positive homing direction
2: Negative homing direction
Digital
InputAddress
UDINT
0 to 65535
RON Byte number of the digital input
DigitalInput
BitNumber
UDINT
0 to 7
RON Bit number of the digital input