Siemens 6ES7211-1HE40-0XB0 SIMATIC S7-1200 CPU 1211C DC/DC/Relay

The Siemens 6ES7211-1HE40-0XB0 is a SIMATIC S7-1200 CPU 1211C compact CPU with DC/DC/relay I/O configuration, integrating 6 digital inputs at 24 V DC, 4 relay outputs rated at 2 A, and 2 analog inputs for 0-10 V DC signals. With 75 kB of work memory and a PROFINET interface, it is suited to small-scale machine and process automation. The unit ships with firmware V4.7 and requires STEP 7 V20 or higher for programming.

Technical specifications:

• MLFB: 6ES7211-1HE40-0XB0
• Manufacturer: Siemens
• Product line: SIMATIC S7-1200
• Firmware version: V4.7
• Supply voltage: 24 V DC (20.4-28.8 V DC)
• Digital inputs: 6 x 24 V DC
• Digital outputs: 4 relay, max 2 A (resistive load)
• Analog inputs: 2 x 0-10 V DC, 10-bit resolution, 625 µs conversion time
• Work memory: 75 kB
• Load memory: 1 MB integrated
• Bit operation processing: 0.08 µs per instruction
• HSC: 3 x single phase at 100 kHz, 3 x differential at 80 kHz
• Retentive data area: 14 kB
• PROFINET interface: 1 x RJ45, 100 Mbit/s
• Backup time: 480 h typical, maintenance-free, no battery required
• Expansion: 1 signal board, up to 3 communication modules
• Current consumption: 300 mA (CPU only), max 900 mA with expansion modules
• Power loss: 8 W typical
• Relay mechanical endurance: 10 million cycles; 100,000 cycles at rated load

Features and benefits:

• Integrated high-speed counter inputs rated to 100 kHz (single phase) and 80 kHz (differential) for counting and positioning tasks
• Maintenance-free backup retains data for up to 480 h without a battery
• OPC UA Server supports read, write, and subscribe access with application and user authentication
• PG/OP communication encrypted with TLS V1.3 pre-selected
• Operates as both PROFINET IO Controller and PROFINET IO Device in the same unit
• Expandable to PROFIBUS and AS-Interface networks via CM modules

Applications:

• Small machine automation requiring mixed digital and analog I/O in a compact housing
• Conveyor and positioning systems using integrated high-speed counter inputs
• Process monitoring with direct 0-10 V DC analog voltage acquisition
• Distributed PROFINET automation with up to 16 IO devices
• Direct load switching via relay outputs without external relay modules

Part of the Siemens SIMATIC S7-1200 range.

Also known as: Siemens 6ES7211-1HE40-0XB0, SIMATIC S7-1200 CPU 1211C, S7-1200 CPU DC/DC/relay.