Siemens SIMATIC Ident System Manual page 57

To avoid any impact on the field data, the distance a should be ≥ 20 mm.
Table 4- 18
Transponder
MDS D100
MDS D124
MDS D126
MDS D160
MDS D165
MDS D200
MDS D261
MDS D324
MDS D400
MDS D422
MDS D423
SIMATIC RF200
System Manual, 07/2015, J31069-D0227-U001-A9-7618
Reduction of field data due to metal, range as %: Transponder and RF240R
without metal
1)
on metal, distance 20 mm
flush-mounted in metal;
distance all round 20 mm
without metal
1)
on metal, distance 15 mm
flush-mounted in metal;
distance all round 25 mm
without metal
1)
on metal, distance 25 mm
flush-mounted in metal;
distance all round 50 mm
without metal
1)
on metal, distance 10 mm
without metal
on metal, distance 25 mm
without metal
1)
on metal, distance 20 mm
flush-mounted in metal,
distance all round 20 mm
without metal
on metal, distance 25 mm
without metal
1)
on metal, distance 15 mm
flush-mounted in metal;
distance all round 25 mm
without metal
1)
on metal, distance 20 mm
flush-mounted in metal,
distance all round 20 mm
without metal
flush-mounted in metal;
distance all round 0 mm
without metal
on metal, distance 0 mm
flush-mounted in metal;
distance all round 10 mm
Reader without Reader on
direct metal
metal influence
(metal plate)
100
95
90
100
90
85
100
80
70
100
90
100
75
100
95
70
100
85
100
95
90
100
80
75
100
90
100
150 140
2)
70
RF200 system planning
4.3 Installation guidelines
Reader flush-
mounted in metal
(all round
20 mm)
95 80
90 75
75 70
85 75
80 75
70 65
80 70
75 60
55 55
90 80
85 80
95 75
70 65
95 85
80 70
60 50
90 90
80 70
90 80
85 80
75 70
90 80
75 55
70 50
90 85
60 40
95 90
140
2) 2)
60 60
57