Key Features
Technical Specifications
General
Electrical
Digital Outputs
Cable & Environmental
Certifications
Pin Assignment
The SB 1222 uses a 6-pin connector (X19) for field wiring :
Applications
The SB 1222 5 V DC is ideal for applications requiring high-speed, low-voltage digital output:
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Stepper Motor Control: Driving 5 V pulse-train inputs on stepper motor drives
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Motion Control: PTO (Pulse Train Output) applications for positioning and speed control
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High-Speed Switching: Applications requiring output frequencies up to 200 kHz
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Laboratory Equipment: Signal generation for low-voltage instrumentation
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Legacy 5 V Systems: Interfacing with TTL-level logic and older control electronics
Key Benefits
Important Notes
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5 V DC Only: This module is rated for 5 V DC output signals. It cannot drive standard 24 V DC loads. For 24 V DC applications, use the 6ES7222-1BD30-0XB0 variant .
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Signal Board Form Factor: The SB 1222 plugs directly into the S7-1200 CPU. It is not a standalone module that mounts on a DIN rail .
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No Short-Circuit Protection: The outputs do not include short-circuit protection. External protection may be required for critical applications .
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Ground Connection: Ensure the M connection wire is securely grounded. Loss of ground connection may allow leakage current to activate a DC load. Use a redundant ground wire for critical applications .
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Load Connection: For sourcing outputs, connect the load to "-" (ground). For sinking outputs, connect the load to "+" (L+). The active state of a sourcing load is the opposite of a sinking load .
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Current Limitation: Maximum output current is 0.1 A per output. Ensure connected loads do not exceed this rating .
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Firmware Requirement: For motion control applications using PTO, S7-1200 CPU firmware V4.0 or higher is required to select outputs without direction signals .
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SIPLUS Variant: A conformal-coated version for extreme conditions is available as 6AG1222-1AD30-5XB0 (SIPLUS S7-1200 SB 1222) with extended temperature range of -40°C to +60°C .
FAQ
Q1: What is the primary function of the 6ES7222-1AD30-0XB0?
A: It is an SB 1222 signal board that adds 4 high-speed digital outputs to a SIMATIC S7-1200 PLC. It operates on 5 V DC and supports output frequencies up to 200 kHz, making it suitable for stepper motor control, pulse-train applications, and other high-speed switching tasks .
Q2: What is the difference between the 6ES7222-1AD30-0XB0 and 6ES7222-1BD30-0XB0?
A: The key difference is the output voltage: the 1AD30 variant operates on 5 V DC, while the 1BD30 variant operates on 24 V DC. Both offer 4 high-speed outputs at 200 kHz .
Q3: Can this module be used for standard 24 V DC loads?
A: No. This module is rated for 5 V DC only. For 24 V DC loads, use the 6ES7222-1BD30-0XB0 variant instead. Applying 24 V DC loads to the 5 V module may damage it .
Q4: What is the maximum output frequency?
A: The maximum output frequency is 200 kHz, making it suitable for high-speed pulse generation and motion control applications .
Q5: What is the maximum output current per channel?
A: The maximum output current is 0.1 A per channel with resistive load .
Q6: Does this module require an external power supply?
A: No. The module draws power from the CPU backplane bus (5 V DC, 35 mA typical). The field output signals are generated by the module's internal MOSFET circuitry .
Q7: What type of outputs does this module have?
A: The outputs are MOSFET solid-state and support both current-sinking and current-sourcing configurations. For sourcing outputs, connect the load to "-". For sinking outputs, connect the load to "+" .
Q8: What are the physical dimensions and weight?
A: The module measures 38 mm × 62 mm × 21 mm and weighs approximately 35 grams .
Q9: Can this module be used with stepper motor drives?
A: Yes. The SB 1222 5 V DC is specifically designed for driving stepper motor drives that require 5 V pulse-train signals. It supports PTO (Pulse Train Output) functionality for motion control applications .
Q10: What is the cable length limit?
A: The maximum cable length is 50 meters using shielded cable .
