DISTRIBUTED I/O – PRODUCT DATA
EN0B-0090GE51 R0316 6
NOTE: When the input is identified as a DI point, the
internal pull-up resistor is disabled (see Fig. 6).
10 Vdc
GND
25 kOhm
200 kOhmVi
10 Vdc
GND
200 kOhmVi
Analog input low impedance
for RTD sensors
Analog input high impedance
(selectable in CARE)
Fig. 6. Analog input impedance
Sensors and Transducers
Passive sensors (NTC 20kΩ)
Room temperature sensor RF20
Inlet temperature sensor VF20A
External temperature sensor AF20
Active sensors (0 to 10 V):
Duct Humidity Sensor H7011A1000
Duct Humidity Sensor H7012A1009
Active sensors (0 (4) to 20 mA):
Immersion temperature sensor VF 100
Air duct temperature sensor LF 100
Wind sensor:
Wind sensor WS21.
Further connections:
Temperature sensor terminal TF26
Table 6. Accuracy of analog input sensors.
range
measurement error
(without sensor tolerance)
Pt1000 NTC (20 kΩ)
-58 to -4°F (-50 to -20°C) 1.2 K 5.0 K
-4 to 32°F (-20 to 0°C) 0.7 K 1.0 K
32 to 86°F (0 to 30°C) 0.5 K 0.3 K
86 to 158°F (30 to 70°C) 0.7 K 0.5 K
158 to 212°F (70 to 100°C) 1.2 K 1.0 K
212 to 266°F (100 to 130°C) 1.2 K 3.0 K
266 to 302°F (130 to 150°C) 1.2 K 5.5 K
Table 7. L
ONMARK Object NVs for the XFL521B
NV name type range description
nvoAiValue SNVT_volt_f
0x000 (0.00 mV) to
0x461C4000 (10 V)
The value of the input channel connected to a
0...10 V signal after it has been filtered. Voltage
is transmitted in mV. When configured for a
temperature sensor, the channel transmits the
measured resistance.
nvoAiTemp SNVT_temp_p
0xEC78 (-50 °C) to
0x3A98 (150 °C)
Invalid = 0x7FFF
The value of the input connected to either an
NTC20k or PT1000 sensor with a resolution of
0.1 °C. If the sensor channel is configured as a
voltage input, the temperature value is invalid
(0x7FFF).
UCPTSensorConfig
0 = not used,
9 = 0...10 V with pull-up resistor
4 = NTC20
5 = PT1000
10 = 0...10 V without pull-up
resistor (default = 8)
Specifies the type of sensor for a particular input
channel.
UPCTSendOnDelta SNVT_count 0 to 4095 (default = 2)
Specifies the difference in the raw value
measured by the A/D converter is required
before the value of the sensor is transmitted.
UCPTWireOffset SNVT_res 0 to 6553.5 Ω (default = 0)
Specifies a resistance value to add to the
resistance measured for a temperature sensor.