The AO02ev 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.
The AO02ev Analog Output module is a Form/Fit/Function replacement for the ASO1I Analog Slave Output HR I/O module.
FC 149 (Analog Output Slave) sets AO module and output channel operating parameters. Each FC 149 configures settings of seven (7) channels. Two (2) instances of FC 149 are required to configure all fourteen (14) output channels of the I/O module
D/A resolution of each channel is 12 bits. The AO02ev module has one D/A converter for each output channel.
The AO02ev module provides short circuit protection by limiting current to a maximum of 26 mA. The AO02ev module will also detect an open circuit in less than 5 seconds.
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
- AO02e supports optional module redundancy seconds