Siemens SIMATIC S7-1500 Motion Control V13 - Page 337

Appendix
A.2 Tags of the positioning axis/synchronous axis technology object
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
337
Tag
Data type
Values
W
Description
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
(absolute 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
ActiveHoming.
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 active homing:
FALSE: Negative side
TRUE: Positive side
Direction DINT - DIR Homing direction / homing mark approach direction
1: Positive homing direction
2: Negative homing direction
HomePosition
Offset
LREAL -1.0E12 to
1.0E12
DIR Home position offset
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
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
Digi-
talInputAddress
UDINT 0 to 65535 RON Byte number of the digital input
DigitalInput
BitNumber
UDINT 0 to 7 RON Bit number of the digital input
See also
Evaluating the technology data block (Page 173)