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overview：
ABB AO845 3BSE023676R1 analog output module is suitable for single or redundant application scenarios, with 8 unipolar analog output channels and periodic self-diagnostic function. Its diagnosis covers various types, including external channel error reporting (only reported on active channels) for situations such as low output circuit supply voltage and abnormal output current; internal channel error reporting when the output circuit cannot give the correct current value; and module error reporting in situations such as output transistor error, short circuit, checksum error, internal power supply error, status link error, watchdog or incorrect OSP behavior.
Fuctions & Features:
- Analog signal output: ABB AO845 analog output module provides 8 channels and can output 4...20 mA analog signals to meet the needs of precise analog control in industrial automation systems, such as controlling the opening of control valves and the frequency of inverters.
- HART communication: ABB AO845 analog output module supports HART pass-through communication, which can realize two-way communication with intelligent field devices, making it easy to obtain detailed device information and perform remote configuration.
- Short circuit protection: ABB AO845 analog input has short circuit protection function and can be safely connected to ZP or + 24V to prevent equipment damage caused by short circuit.
Specification：
| Resolution: | 12 bit |
| Isolation: | Groupwise isolated from ground |
| Under/over range: | -12.5% / +15% |
| Output load: | Max 750 Ω |
| Error: | Max. 0.1% |
| Temperature drift: | Max. 50 ppm/°C |
| Rise Time: | Output filter: Disable 23 ms, Enable max 4 mA / 12.5 ms |
| Input filter (rise time 0-90%): | 23 ms (0-90%), max 4 mA / 12.5 ms |
| Update cycle time: | 10 ms |
| Current limiting: | Short circuit proof current limited output |
| Maximum field cable length: | 600 meters (656 yards) |
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