6DS1722-8RR SIEMENS

The ‌SIEMENS Analog Output Modules‌ are dedicated high-precision signal conversion units in the SIMATIC automation ecosystem, designed to convert digital control values from the PLC into continuous analog voltage or current signals for driving on-site actuators. Natively compatible with SIMATIC S7-1200/1500, S7-300/400 and full ET 200 distributed I/O series, they support seamless integration with the TIA Portal engineering platform. These modules serve as the final execution interface for stepless regulation of process parameters such as flow, pressure, temperature and speed, covering all standard industrial analog output requirements from small standalone equipment to large distributed factories.

Core Product Parameters

• ‌Model classification‌: Cover Basic (BA), Standard (ST), High Feature (HF) and on-site distributed IP65 grades, with channel configurations of 2/4/8/16 independent channels
• ‌Signal compatibility‌: Natively supports ±10V/0-10V/1-5V voltage signals and ±20mA/0-20mA/4-20mA current signals, with arbitrary signal type configurable per channel via software
• ‌Performance indicators‌: Maximum 16-bit conversion resolution, full-scale basic accuracy up to ±0.1%, settling time as low as 0.05ms for resistive load, full-channel update cycle not exceeding 1ms
• ‌Load capacity‌: Voltage output minimum load impedance ≥1kΩ, current output maximum allowable load ≤500Ω, supporting up to 1000m long-distance shielded signal transmission
• ‌Isolation performance‌: 500V~2500V AC galvanic isolation between backplane bus and analog channels, fully compliant with IEC 61000 EMC industrial anti-interference standards
• ‌Diagnosis function‌: Natively supports channel-level open-circuit/short-circuit detection, over-range alarm, supply voltage monitoring and non-volatile fault log storage, with independent LED status indicators for each channel
• ‌Environmental adaptability‌: Industrial wide temperature range from -30°C to +70°C, IP20 for standard models and IP65 for on-site distributed models, supporting live hot-swap without system power-off
• ‌Engineering compatibility‌: Fully configurable in TIA Portal V13 and above, supporting CiR (Configuration in RUN) function to reassign parameters without stopping the controller

Key Product Advantages

1. ‌Industry-leading output precision‌: Optimized 16-bit DA conversion circuit and built-in temperature drift compensation algorithm, the temperature error is as low as ±0.003%/K, maintaining stable high-precision output even in wide temperature fluctuations
2. ‌Multi-signal adaptive flexibility‌: One single module can be configured with different voltage/current signal types arbitrarily through software, no need to replace hardware, greatly reducing spare parts inventory and procurement costs
3. ‌Ultra-fast dynamic response‌: The HF series achieves 0.05ms settling time, which can meet the high-speed stepless regulation requirements of dynamic process control scenarios such as high-speed flow regulation and servo speed fine-tuning
4. ‌Strong anti-interference performance‌: High common-mode rejection ratio design, the maximum crosstalk between channels is less than -50dB, effectively eliminating signal distortion caused by on-site electromagnetic interference
5. ‌Efficient engineering and maintenance‌: All configuration, calibration and diagnosis are completed in the unified TIA Portal environment, supporting automatic module identification after replacement, no extra complex debugging required, cutting maintenance time by more than 50%

Important Notes

• Before wiring, confirm that the output signal type and range configured in TIA Portal are completely consistent with the on-site actuator, otherwise it will cause control abnormality or even permanent burnout of the channel
• The shielded analog signal cable must be single-end grounded at the control cabinet side, double-end grounding of the shield layer is strictly forbidden to avoid ground loop current causing signal drift
• The load impedance of the actuator must not exceed the maximum allowable value specified in the module manual, otherwise the output accuracy will drop sharply or even trigger over-current protection
• Do not hot-swap the module when the on-site actuator is powered on, otherwise the instantaneous surge may damage the high-precision DA conversion chip
• Regularly check the tightness of wiring terminals every 12 months, and perform full-channel accuracy calibration once every 2 years to avoid signal deviation caused by long-term operation