Siemens S7-1200 Analog Input Module

SIMATIC S7-1200,

Analog input, SM 1231,

8 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign or (13 bit ADC

Siemens S7-1200 Analog Input Module EM231 Analog Input Signal Module with 4 analog inputs, 0 to 10 V, 12 bit resolution for CPU 221/222/224/224 XP/226.

The Energy Meter Module SM1238 is the ideal entry into machine-level energy management.

The space-saving expansion module is just 45 millimeters wide, and can be used to record energy flows simply and precisely, directly on the machine. The measurements are processed directly in the CPU, and visualized with a Basic or Comfort Panel. The SM1238 Energy Meter module records measured electrical values, such as voltages up to 480 V AC, in a 1 or 3-phase network with a direct connection but without a transformer. The user can freely adjust the diagnostic parameters for over and under-voltage, overload, tolerance value and tolerance time. An external 1 or 5 ampere current transformer with a conversion factor of up to 10,000 is used to measure the current.