I/O Systems - SDe Series I/OAO02e

The AO02e Analog Output module processes up to sixteen (16) high level, group isolated, analog output field signals. Each channel is independently configurable for either 4 to 20 mA or 1 to +5 VDC ranges.

FC 221 (I/O Device Definition) sets AO module operating parameters and each output channel is configured using FC 223 (Analog Output CH) to set indivdual output channel parameters such as engineering units, High/Low Alarm limits, default value in event of loss of communication with controller, etc.

D/A resolution of each channel is 12 bits. The AO02e module has one D/A converter for each output channel.

The AO02e module provides short circuit protection by limiting current to a maximum of 26 mA. In current mode, the module will also detect an open circuit in less than 5 seconds.

The analog output channels are 1 x 16 group isolated.

Features and benefits

  • Sixteen (16) independently configurable Analog Output channels supporting:
  • 4 to 20 mADC, or 1 to +5 VDC
  • Up to 64 HART v5.4 secondary variables Total, max 4 sec vars per analog output CH
  • Secondary HART variable update 2.5 typical, 8 max seconds
  • 12-Bit D/A converter resolution
  • Current mode load up to 750
  • Accuracy is ±0.1 % of Full Scale Range where FSR = 25 mA or 6.25 VDC
  • In HN800 operating mode, AO02e supports optional module redundancy