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The 6AV1222-0AC20 connects Siemens operator panels to SIMATIC PLCs. This interface processor handles communication protocol conversion between devices. You can rely on it for reliable HMI-to-controller data exchange.
Key Technical Parameters
The table below lists all essential technical specifications for this interface processor.
| Specification | Details |
|---|---|
| Part Number | 6AV1222-0AC20 |
| Product Type | Interface Processor |
| Compatibility | SIMATIC S5, S7, and HMI devices |
| Communication Ports | 2 serial interfaces |
| Port 1 Type | RS-232 (9-pin D-sub) |
| Port 2 Type | RS-422/485 (switchable) |
| Transmission Rate | 300 bps to 38.4 kbps |
| Protocol Support | AS511, 3964R, RK512 |
| Buffer Memory | 8 KB dual-port RAM |
| Dimensions (W x H x D) | 160 mm x 100 mm x 45 mm |
| Weight | Approx. 0.35 kg |
| Mounting | DIN rail or panel |
| Power Supply | 24V DC |
| Current Consumption | 150 mA |
| Operating Temperature | 0°C to 50°C |
Physical Characteristics and Installation
This interface processor weighs approximately 0.35 kg for DIN rail mounting. Its dimensions measure 160 mm x 100 mm x 45 mm for compact cabinet placement. First, clip the 6AV1222-0AC20 onto a 35 mm DIN rail. Then, connect your HMI device to one serial port. Finally, connect your PLC to the other serial port. LED indicators on the front show power and communication activity.
Communication Specifications
The 6AV1222-0AC20 features two serial interfaces for device linking. Port 1 uses RS-232 for direct connection to operator panels. Port 2 offers switchable RS-422 or RS-485 for longer cable runs. The transmission rate ranges from 300 bps up to 38.4 kbps. Supported protocols include AS511, 3964R, and RK512. Consequently, this processor bridges older and newer automation components.
Memory and Power Requirements
This interface processor integrates 8 KB of dual-port RAM for message buffering. The buffer stores data during peak communication loads. The 6AV1222-0AC20 requires a 24V DC power supply for operation. The current consumption reaches 150 mA under normal conditions. Use this module to add HMI connectivity to existing S5 systems.