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Rockwell Automation Publication 871FM-UM002A-EN-P - April 2017
Appendix B
Device Parameters
Observation Tab
Parameter Name
Index
Hex (Dec)
Subindex
Hex (Dec)
Access
Default
Allowed Value
Data Type (Length)
Device Monitoring
.SignalStrength On
0x56(86)
0x01(1)
RO
—
0…65,535
UIntegerT(RecordT)
bitLength=16
bitOffset=16
.SignalStrength Off
0x56(86)
0x02(2)
RO
—
0…65,536
UIntegerT(RecordT)
bitLength=16
bitOffset=0
Contrast
0x57(87)
0x00(0)
RO
—
0…255
UIntegerT
bitLength=8
Excess Gain
0x59(89)
0x00(0)
RO
—
0…255
UIntegerT
bitLength=8
Gain (only for 871FM
polarized
retroreflective)
0x59(89)
0x00(0)
RO
—
0…255
UIntegerT
bitLength=8
Parameter Tab
Parameter Name
Index
Hex (Dec)
Subindex
Hex (Dec)
Access
Default
Allowed Value
Data Type (Length)
User Interface Configuration
Operation Configuration
Triggered1(or Triggered)
.Set Point - Threshold
0x3C(60)
0x01(1)
RW
1000
505…12923
Uinteger(RecordT)
bitLength=16
bitOffset=16
.Polarity
0x3D(61)
0x01(1)
RW
0= Not Inverted
0 = Not Inverted
1 = Inverted
Boolean (RecordT)
bitLength=48
bitOffset=40
.Hysteresis
0x3D(61)
0x03(3)
RO
1650
Uinteger(RecordT)
bitLength=16
bitOffset=0
Pin 2 Mode
0x60(96)
0x00(0)
RW
0 = Disabled
0 = Disabled
1 = Normally Closed
2 = Normally Open
Uinteger
bitLength=8
Sensor Configuration
.ProximityAlarmLow
0x58(88)
0x01(1)
RW
4 = 0.8
0 = 0.5
1 = 0.6
2 = 0.6
3 = 0.7
4 = 0.8
Uinteger(RecordT)
bitLength=8
bitOffset=8
.MarginLevel - High
Multiplier
0x58(88)
0x02(2)
RW
1 = 1.5
0 = 1.0
1 = 1.5
2 = 2.0
3 = 5.0
4 = 10.0
5 = 15.0
6 = 20.0
Uinteger(RecordT)
bitLength=8
bitOffset=0