Description
Product Description
Overview
The HART Analog Output Module (Model XYZ-123) provides eight multiplexed 4-20mA output channels for direct integration with Ovation control systems and intelligent field devices. Designed for precise process control, it allows digital communication superimposed on analog signals for enhanced monitoring and maintenance using AMS Suite and Device Manager software.
Key Features
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Eight analog output channels with 4-20mA signal range
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Channels share a common +24VDC auxiliary power source and ground; no channel-to-channel isolation
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Embedded 16MHz microcontroller manages A/D and D/A conversions and HART communication
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14-bit A/D converter for high-resolution signal processing across all channels
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Frequency-shift keyed (FSK) sinewave superimposition for HART signaling
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Software-configurable I/O bus communication timeout
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1000VDC/RMS electrical isolation between logic circuits and field devices
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Electronic identification and module configuration stored in on-board EEPROM
Technical Specifications
| Parameter |
Specification |
| Number of Channels |
8 |
| Channel Update Rate |
24ms per channel |
| Output Signal Range |
4–20mA |
| D/A Resolution |
14-bit |
| Accuracy |
±0.25% of span across temperature range |
| User Loop Voltage |
Powered via module auxiliary 24VDC supply |
| Diagnostics |
Open-loop feedback detection; 8 pass/fail status bits |
| Dielectric Isolation |
Channel-to-Logic: 1000VAC/VDC for 1 minute; Channel-to-Channel: None |
| Output Loading |
4–20mA into 700Ω maximum (minimum 230Ω–maximum 600Ω) |
| Output Compliance |
20mA @ 21.6VDC supply into 700Ω load |
| Operating Temperature |
0°C to 60°C |
| Humidity (non-condensing) |
0% to 95% |
| Module Power |
Main: 24VDC, 1.2W typical, 2.5W max; Aux: 24VDC (-5%/+6.25%), 6W typical, 7.2W max |
Applications
Ideal for industrial process control systems where precise analog signal transmission and HART communication are required, such as power plants, chemical processing, and automated monitoring systems. Supports integration with Ovation control platforms and intelligent field devices for real-time diagnostics and data collection.
FAQ
Q: Can the channels operate independently?
A: Channels share a common power and ground, so isolation between channels is not provided.
Q: What software is compatible for device management?
A: AMS Suite and Device Manager support module configuration, diagnostics, and maintenance.
Q: Is the module suitable for harsh environments?
A: It operates reliably within 0–60°C and 0–95% non-condensing humidity, with 1000V isolation between logic and field circuits.
Q: What is the maximum output load?
A: The module supports 4–20mA into up to 700Ω load.
