Product Overview
The Siemens 6ES7222-1BF22-0XA8, also known as the EM 222 digital output module, is a compact and reliable expansion module designed specifically for the SIMATIC S7-200 series programmable logic controllers. As an integral part of the S7-200 system architecture, this module provides 8 digital output channels with 24 V DC transistor outputs, enabling seamless expansion of control capabilities for small to medium-scale automation applications. The Siemens 6ES7222-1BF22-0XA8 is exclusively compatible with S7-22X series CPUs, including CPU 221, CPU 222, CPU 224, and CPU 226, making it a versatile choice for system upgrades and maintenance of existing installations.
The Siemens 6ES7222-1BF22-0XA8 features a compact S7-200 form factor with dimensions of 45 mm width, 80 mm height, and 62 mm depth, allowing for efficient use of DIN rail space within control cabinets. With a rated output current of 0.75 A per channel and a total current capacity of 3 A per group at temperatures up to 55°C, this module delivers robust performance for driving a wide range of industrial loads including solenoids, contactors, indicator lights, and small actuators. The Siemens 6ES7222-1BF22-0XA8 employs optocoupler isolation between the backplane bus and the output circuits, providing 500 V AC isolation protection that enhances system reliability in electrically noisy industrial environments.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 6ES7222-1BF22-0XA8 |
| Manufacturer | Siemens AG |
| Product Type | Digital Output Expansion Module (EM 222) |
| Series | SIMATIC S7-200 / S7-200CN |
| Compatibility | S7-22X CPUs (CPU 221, 222, 224, 226, 226XM) |
| Output Channels | 8 digital outputs, transistor type |
| Output Voltage (Signal “1”) | 24 V DC (min. 20 V) |
| Rated Output Current | 0.75 A per channel (max.) |
| Total Current per Group | 3 A max. (up to 55°C, horizontal installation) |
| Residual Current (“0” Signal) | Max. 10 µA |
| Supply Voltage Range | 20.4 V DC to 28.8 V DC |
| Backplane Bus Current | Max. 50 mA (5 V DC) |
| Short-Circuit Protection | Not integrated (external protection required) |
| Inductive Shutdown Voltage Limit | L+ (-48 V) |
| Isolation | Optocoupler, 500 V AC test voltage |
| Isolation Groups | 4 outputs per group |
| Cable Length (Shielded) | Max. 500 m |
| Cable Length (Unshielded) | Max. 150 m |
| Dimensions (W x H x D) | 45 mm x 80 mm x 62 mm |
| Weight | Approx. 150 g |
| Mounting | 35 mm DIN rail or panel mount |
| Operating Temperature | 0°C to 55°C |
| Protection Class | IP20 |
| Certifications | CE, UL, CSA, ATEX, FM, EAC, China RoHS |
