Siemens 6ES7232-0HB22-0XA8 EM 232 Analog Output

Analog Output Expansion for S7-200 CN Systems

The Siemens 6ES7232-0HB22-0XA8 functions as an EM 232 analog output module for the SIMATIC S7-200 CN series, specifically designed for S7-22X CPUs . This module provides 2 analog output channels, each delivering a ±10 V DC signal with a 12-bit converter for voltage outputs and 11-bit for current outputs . Consequently, this module enables precise control of actuators, valves, and other analog devices in industrial processes. The module requires 70 mA from an external 24 V DC supply and 20 mA from the 5 V DC backplane bus . Its compact dimensions of 46 mm width, 80 mm height, and 62 mm depth make it suitable for space-constrained control panels .

Technical Specifications

Specification	Value
Model	6ES7232-0HB22-0XA8
Product Type	EM 232 Analog Output Module
System Compatibility	S7-200 CN (S7-22X CPU only)
Analog Outputs	2
Output Voltage Range	±10 V DC
Output Current Range	4 mA to 20 mA
Resolution (Voltage)	12 bits
Resolution (Current)	11 bits
Settling Time (Voltage)	100 µs
Settling Time (Current)	2 ms
Current Consumption (24 V DC)	70 mA (max.)
Current Consumption (5 V DC)	20 mA (max.)
Power Loss	2 W (typical)
Load Impedance (Voltage)	5 kΩ (min.)
Load Impedance (Current)	0.5 kΩ (max.)
Dimensions (W x H x D)	46 mm x 80 mm x 62 mm
Weight	Approx. 0.129 kg
Approvals	CE only
Product Lifecycle	Discontinued (since 2021-10-01)

Output Performance and Accuracy

The Siemens 6ES7232-0HB22-0XA8 delivers a settling time of 100 µs for voltage outputs and 2 ms for current outputs, ensuring rapid response to control signals . The module achieves a basic error limit of ±0.5% at 25 °C, with an operational error limit of ±2% across the full temperature range . It supports signal ranges from -32,000 to +32,000 and unipolar ranges from 0 to 32,000 for displayable conversion values . The module does not provide potential separation for analog outputs, so users must consider this in their system design . It also does not support plug-in I/O terminals .

Installation and Important Notes

The Siemens 6ES7232-0HB22-0XA8 mounts directly onto the S7-200 expansion bus, simplifying system integration. Please note that Siemens has discontinued this product effective October 1, 2021, and it is now available only as a spare part . This CN version carries CE approval only and is specifically intended for the Chinese market . For users requiring full international certifications, the standard version 6ES7232-0HB22-0XA0 may be more suitable.