December 2001 Analog Input 3 – 47
3.7 Analog Input
The logic unit and the PLC input/output board PL 410B have analog inputs and
inputs for Pt 100 thermistors.
The PL 410B is available with and without analog inputs.
The current values of the inputs can be requested with Module 9003.
(See “Overview of Modules” on page 5 – 3).
Analog inputs Voltage range: –10 V to +10 V
Input resistance: > 250 kΩ
Resolution (W480, W482, W484): 100 mV
Resolution (Module 9003): 10 mV (LE)
100 mV (PL 410 B)
Internal value range: –100 to +100, at a resolution of 100 mV
-10 to +10, at a resolution of 10 mV
Inputs for Pt 100
thermistors
Constant current: 5 mA
Temperature range: 0 °C to 100 °C
Resolution (W486, W488, W490): 0.5 °C
Resolution (Module 9003): 0.1 °C (LE)
0.5 °C (PL 410 B)
Internal value range: 0 to 200, at a resolution of 0.5 °C
0 to 1000, at a resolution of 0.1 °C
Analog inputs (±10 V) Inputs for Pt 100
thermistors
Logic unit 3 3
PL 405B ––
PL 410B 4 4