The Analog Input module is available in three versions: unipolar, bipolar and current. The unipolar
module covers the voltage range, 0 to +10 V. The
bipolar module covers the voltage range, - 10 to +1 0
V. The current module accepts currents in the range,
4 to 20mA;with a simple change of front panel connections it reads voltages in the range, +1 to +5 V.
The Analog Input module features and benefits are
summarized in Table 1.
Each of these modules functions as an anaits eight input channels.
log-to-digital (A/D) converter for signals on each of
The sampled value of the
input level is converted to a 12-bit binary number.
This number is sent, along with binary information
giving various operating conditions and the number of
the channel being read, to the Input Status Table in