Siemens S5-135U/155U System Manual page 413

Setting the Mode
You select the desired mode of the analog input module by setting mode
switches I and II according to the following table.
Please note that all switch rockers marked with a dot must be set on both
mode switches. To set the desired mode, press the rockers downwards on the
side marked with a dot in the table.
Mode
Without reference point compensation
With reference point compensation
Measuring range
Extended Pt 100 measuring range
500 mV; mA (standard Pt 100 measuring
range)
50 mV
Value and sign
Two's complement
Gain x 1
(normal setting)
Gain x4
Sampling
selective
cyclic
Line frequency
50 Hz
60 Hz
Channels 0 to 3
with broken wire signal
Channels 4 to 7
Channels 0 to 3
without broken wire signal
Channels 4 to 7
X = Switch is not assigned; any switch setting.
System Manual
C79000-G8576-C199-06
Mode Switch I
(Digital Section)
= Switch setting
Analog Input/Output Modules
Mode Switch II
(Digital Section)
9-31