Overview
Configured for 4-20 mA signal acquisition and output control in CENTUM VP and CENTUM CS 3000 FIO systems, the Yokogawa AAI835-H53/K4A00 (AAI835 Analog I/O Module) provides direct electrical execution for HART-enabled field device interfacing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAI835-H53/K4A00 |
| Brand | Yokogawa |
| Origin | Japan |
| Product Type | Analog Input/Output Module |
| System Compatibility | CENTUM VP / CENTUM CS 3000 FIO System |
| Input Channels | 4 channels, 4-20 mA DC |
| Output Channels | 4 channels, 4-20 mA DC |
| Signal Type | Current input and current output |
| Communication Protocol | HART communication |
| HART Capacity | Supports up to 16 HART devices per module |
| Input Accuracy | +/- 16 uA (+/- 0.1% of full scale) |
| Output Accuracy | +/- 48 uA (+/- 0.3% of full scale) |
| Input Response Time | 100 ms |
| Output Response Time | 40 ms |
| Input Resistance | 290 ohm at 20 mA, 450 ohm at 4 mA (power ON) |
| Output Load Resistance | 0 to 750 ohm |
| Circuit Open Detection | Less than 0.65 mA |
| Transmitter Power Supply | 14.8 VDC or higher at 20 mA, 26.4 VDC or less at 0 mA |
| Isolation | System-to-field isolation |
| External Connection | KS Cable connection via K4A00 adapter |
| Weight | Approx. 0.3 kg |
| Dimensions | Not specified |
| Operating Temp | Not specified |
| Power Consumption | 310 mA at 5 VDC; 500 mA at 24 VDC |
| Data Update Period | 10 ms |
4-20 mA HART Loop Protocol and Channel Signal Processing
The AAI835-H53/K4A00 applies Yokogawa process I/O architecture for analog signal handling in CENTUM VP and CENTUM CS 3000 environments. The module processes 4-20 mA current loops while maintaining HART digital communication between the control system and smart field instruments.
Furthermore, the module supports transmitter power delivery for 2-wire and 4-wire devices. The analog channels maintain defined electrical characteristics for input measurement, output generation, and loop monitoring functions.
The HART communication function allows digital parameter exchange through the same current loop without interrupting the analog measurement path. Channel signal processing supports process measurement, configuration access, and field device diagnostics.
Frequently Asked Questions
Q: Does the AAI835-H53/K4A00 support HART communication on the analog channels?
A: Yes. The module supports HART communication for connected smart field devices through the 4-20 mA current loop channels.
Q: What type of field signals can the AAI835-H53/K4A00 process?
A: The module processes 4-20 mA DC input signals and generates 4-20 mA DC output signals for process control applications.
Q: How does the module connect to the FIO system?
A: The module uses a KS Cable connection through the K4A00 adapter assembly for field wiring integration.
Field Installation Guidelines
- Install the module in the specified Yokogawa FIO hardware configuration compatible with CENTUM VP or CENTUM CS 3000 systems.
- Connect KS Cable interfaces according to Yokogawa terminal assignment documentation.
- Separate analog signal wiring from high-voltage power cables to reduce electrical interference.
- Use shielded cables for field analog loops and terminate cable shields according to plant grounding standards.
- Verify 4-20 mA loop polarity before applying field power.
- Confirm transmitter power requirements before connecting 2-wire field devices.
- Check HART communication wiring conditions when integrating smart transmitters.
- Verify module power supply availability before commissioning signal channels.
Emerson Top Products
| Emerson DeltaV | Epro | Ovation/Westinghouse |
| KJ1501X1-BC3 | 9100-00049-03 | 1C31122G01 |
| KJ3202X1-BA1 | A6110 | 1C31125G03 |
| KJ3222X1-BA1 | A6120 | 1C31232G01 |
| KJ3243X1-BA1 | A6125 | 1C31147G01 |
| KJ3002X1-BG1 | A6140 | 1B30035H01 |
| KJ3002X1-BB1 | A6210 | 1B30023H02 |
| KJ3001X1-BB1 | A6220 | 1B30023H01 |
| KJ3002X1-BC1 | A6312 | 1C31132G01 |
| KJ3002X1-BF1 | A6312/06 | 1C31129G03 |
| KJ3001X1-BJ1 | A6312/08 | 5X00119G01 |
Reviews
There are no reviews yet.