ABB AX561 S500-eCo 4-Input 2-Output Analog I/O Module
Four differential inputs and two analog outputs provide compact signal acquisition and command functions without channel isolation.
Overview
ABB AX561 is a compact S500-eCo mixed analog I/O module. It combines four configurable differential voltage or current inputs with two configurable voltage or current outputs. The documented ranges cover multiple unipolar and bipolar voltage inputs, standard current loops and bipolar voltage or current outputs. ABB identifies 13-bit resolution including sign in the current product catalog. The channels, I/O bus and process supply are not galvanically isolated from one another, so grounding and common-mode conditions require careful engineering.
Specs
| Manufacturer | ABB |
|---|---|
| Article Number | 1TNE968902R1301 |
| Product Family | AC500-eCo / S500-eCo |
| Module Type | Mixed analog input/output module |
| Analog Inputs | 4 configurable differential channels |
| Analog Outputs | 2 configurable channels |
| Input Voltage Ranges | -2.5 to +2.5 V; -5 to +5 V; 0 to 5 V; 0 to 10 V |
| Input Current Ranges | 0 to 20 mA; 4 to 20 mA |
| Output Ranges | -10 to +10 V; 0 to 20 mA; 4 to 20 mA |
| Resolution | 13 bits including sign |
| Galvanic Isolation | No isolation between channels, I/O bus and process supply |
| Terminal System | Separate removable 9-pin and 11-pin terminal blocks |
| Hot Swap | Not supported |
| Lifecycle | Active |
Features
Functional Highlights
- Measures four differential voltage or current signals.
- Generates two voltage or current command signals.
- Supports both narrow and wider bipolar voltage input ranges.
- Uses signed conversion for the documented bipolar modes.
- Fits compact AC500-eCo stations using two removable terminal blocks.
- Requires engineered grounding because galvanic isolation is not provided.
Exact Product Identity
- Manufacturer: ABB
- Model: AX561
- Product Type: AC500-eCo mixed analog input/output module
- Status: Active product
Applications
- Small closed-loop process stations combining four measurements with two commands.
- Compact machines using differential voltage inputs and 4 to 20 mA outputs.
- AC500-eCo expansion where two analog actuators accompany four sensors.
- Installations with controlled sensor grounding and common reference conditions.
- Exact AX561 service replacement with the same terminal and non-isolated wiring design.
Lifecycle
- ABB lists article 1TNE968902R1301 as Active.
- The removable 9-pin and 11-pin terminal blocks are separate ordering items.
- AX561 is not hot-swappable and must be exchanged using the approved isolation procedure.
- Because the module is non-isolated, reproduce the original grounding and reference arrangement.
- After exchange, check all four input ranges and both output ranges before closed-loop operation.
FAQ
What I/O combination is built into AX561?
It combines four differential analog inputs with two analog outputs.
Does AX561 provide galvanic isolation?
No. ABB states that the channels, I/O bus and process supply are not galvanically isolated.
Which bipolar input ranges does AX561 support?
The documented bipolar input ranges are -2.5 to +2.5 V and -5 to +5 V.
Can both AX561 outputs be configured for 4 to 20 mA?
Yes. Both configurable outputs support the documented current ranges.
Is powered replacement approved for AX561?
No. ABB lists the module as not hot-swappable.
Which wiring check is critical before commissioning AX561?
Confirm grounding, common reference, terminal-block placement and every channel range because the module is non-isolated.
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