Product Description
Product Overview
The Yokogawa AAB841-S50 S2 is an Analog I/O Module designed to provide 8 inputs and 8 outputs, supporting up to 8 loops. This non-isolated module handles current and voltage signals and can be configured for dual-redundant operation, making it suitable for reliable industrial applications.
Technical Specifications
| Parameter | AAI841 (*1) | AAB841 (*5) | AAB842 (*5) (*6) |
|---|---|---|---|
| Number of I/O Channels | 8-channel input/8-channel output, non-isolated | 8-channel input/8-channel output, non-isolated (differential input) | 8-channel input/8-channel output, non-isolated |
| I/O Signal | Input: 4 to 20 mA Output: 4 to 20 mA |
Input: 1 to 5 V (allowable common mode voltage ±1 V or less) Output: 4 to 20 mA |
Input (*7): Voltage input: 1 to 5 V DC (allowable common mode voltage ±1 V or less), Current input: 4 to 20 mA DC Output: 4 to 20 mA |
| Allowable Input Current/Voltage | 25 mA | ±7.5 V | Voltage input: ±7.5 V Current input: 25 mA |
| Withstanding Voltage | — | — | — |
| Input Resistance (Power ON) | 400 Ω (at 20 mA) to 1000 Ω (at 4 mA) (*2) | 1 MΩ or larger | Voltage input: 1 MΩ or larger Current input: 290 Ω (at 20 mA) to 450 Ω (at 4 mA) (*2) |
| Input Resistance (Power OFF) | 500 kΩ or larger | 340 kΩ or larger | Voltage input: 340 kΩ or larger Current input: 500 kΩ or larger |
| Allowable Load Resistance | 0 to 750 Ω (*3) | 0 to 750 Ω | 0 to 750 Ω (*4) |
| Circuit-Open Detection | Less than 0.65 mA | Less than 0.65 mA | Less than 0.65 mA |
| Accuracy | Input: ±16 µA Output: ±48 µA |
Input: ±4 mV Output: ±48 µA |
Voltage input: ±4 mV Current input: ±16 µA Output: ±48 µA |
| Data Update Period | 10 ms | 10 ms | 10 ms |
| Input Step Response Time | 100 ms | 100 ms | 100 ms |
| Output Step Response Time | 40 ms | 40 ms | 40 ms |
| Transmitter Power Supply | 14.8 V or higher (at 20 mA) 26.4 V or less (at 0 mA) (*4) |
— | — |
| Setting of 2-wire or 4-wire Transmitter | For each channel by setting pin | — | — |
| Temperature Drift | ±0.1 %/10 °C | ±0.1 %/10 °C | ±0.1 %/10 °C |
| Maximum Current Consumption | 310 mA (5 V DC), 500 mA (24 V DC) | 310 mA (5 V DC), 250 mA (24 V DC) | 410 mA (5 V DC), 290 mA (24 V DC) |
| Weight | 0.3 kg | 0.3 kg | 0.3 kg |
| External Connection | Pressure clamp terminal, KS cable, MIL connector cable | KS cable | KS cable |
| HART Communication (*8) | Available | — | Available (at current input and output) |
Model Variants and Suffix Codes
The AAB841 Analog I/O Module is available with various configurations:
| Category | Details |
|---|---|
| Base Model | AAB841 (1 to 5 V input, 4 to 20 mA output, 8-channel input/8-channel output, Non-Isolated) |
| Suffix Codes |
|
Optional Features
Optional configurations enhance functionality:
- /K4A00: With KS Cable Interface Adapter [Model: ATK4A-00]
- /M4A00: With MAC2 Compatible Adapter [Model: ATM4A-00]
- /V4A00: With VM2 Compatible Adapter [Model: ATV4A-00] (*1)
- /A4S00: With Pressure Clamp Terminal Block for Analog [Model: ATA4S-00]
- /A4S10: With Pressure Clamp Terminal Block for Analog (surge absorber) [Model: ATA4S-10]
- /A4D00: With Dual Pressure Clamp Terminal Block for Analog [Model: ATA4D-00]
- /A4D10: With Dual Pressure Clamp Terminal Block for Analog (surge absorber) [Model: ATA4D-10]
- /CCC01: With Connector Cover for MIL Cable [Model: ACCC01]