Overview
The ABB DSAO 130A 3BSE018294R1, also cataloged as the DSAO130A 3BSE018294R1 analog output board, operates as a dedicated hardware component for converting digital control signals into proportional current or voltage outputs within the S100 I/O system.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSAO 130A 3BSE018294R1 |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.3 kg |
| Dimensions | 2 x 25.6 x 24.3 cm |
| Operating Temp | 0 to +60 degC |
| Storage Temp | -40 to +85 degC |
| Power Supply | 24 V dc |
| Power Dissipation | <= 3 W @ 24 V |
| Output Channels | 16, individually isolated |
| Output Ranges | 0-20 mA, 4-20 mA |
| Resolution | 12 bits |
| Accuracy | +/- 0.1 % of span @ 25 degC |
| Load Resistance (Current) | 0-550 Ohm |
| Isolation | 1500 V ac channel-to-bus |
| Humidity | 5-95 % RH non-condensing |
Backplane Bus Communication Velocity
The module interfaces with the Advant Controller 400 series via the S100 I/O backplane bus. Signal processing, including filtering and gain control, is executed locally on the board to reduce the computational load on the host CPU. This distributed architecture ensures deterministic data exchange and maintains real-time performance during system expansion without degrading the scan cycle of the central controller.
Frequently Asked Questions
Q: What is the procedure for configuring the 4-20 mA output range?
A: The 4-20 mA range is typically managed via software offset configuration in the host controller. No physical jumper changes are required on the DSAO 130A board itself; ensure the connected load does not exceed 550 Ohm.
Q: Does the DSAO 130A support hot-swapping?
A: No. The module must be inserted or removed only after the 24 V dc power supply to the S100 I/O rack has been disconnected to prevent damage to the backplane connectors and electronic components.
Field Installation Guidelines
Install the module into the designated slot of the S100 connection unit. Ensure the locking levers are fully engaged to maintain proper backplane contact. For current output loops, verify that the field wiring uses twisted-pair cables and that the shield is grounded at a single point to minimize electromagnetic interference. When mounting the connection unit in the cabinet, maintain adequate spacing for heat dissipation and avoid routing signal cables parallel to high-voltage power lines.
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