Siemens SIMATIC SC 6ES7123-1FB00-0AB0 2 AI Voltage Module

Overview

Siemens · SIMATIC SC

6ES7123-1FB00-0AB0 2 AI Voltage Electronic Submodule

Siemens 6ES7123-1FB00-0AB0 is a SIMATIC SC electronic submodule with two analog voltage inputs for ±10 V and 1 to 5 V signals.

At a Glance

Brand	Siemens
Model	6ES7123-1FB00-0AB0
Product Type	Two-channel analog input submodule
Core Function	Converts two voltage input signals in the ±10 V or 1 to 5 V ranges for a SIMATIC SC station
Application or Compatible Series	SIMATIC SC stations using the TB 16SC terminal block for voltage measurement

Two Voltage Inputs

Acquire two analog channels in the documented bipolar or live-zero voltage ranges.

Configurable Filtering

Select integration and digital smoothing to match the signal and interference environment.

SIMATIC SC Installation

Install the submodule in the required TB 16SC terminal block and configured station slot.

Product Overview

Siemens 6ES7123-1FB00-0AB0 is a SIMATIC SC electronic submodule with two analog voltage inputs for ±10 V and 1 to 5 V signals.

Both channels accept the specified ±10 V and 1 to 5 V ranges. The converter provides up to 13-bit resolution including sign and overrange. Selectable integration time and four smoothing levels support stable field measurements.

Ordering focus: confirm the exact article number, TB 16SC terminal block, two voltage ranges, station slot, 24 V DC supply and saved filtering settings.

Key Functions

Multi-Range Voltage Measurement

Both channels accept the specified ±10 V and 1 to 5 V ranges.

High Measurement Resolution

The converter provides up to 13-bit resolution including sign and overrange.

Signal Conditioning

Selectable integration time and four smoothing levels support stable field measurements.

Official Specifications

Analog Input Channels	2
Rated Input Ranges	±10 V and 1 to 5 V
Maximum Resolution	13 bit including sign and overrange
Resolution at ±10 V	13 bit
Resolution at 1 to 5 V	12 bit
Rated Supply Voltage	24 V DC
Maximum Supply Current	30 mA
Typical Power Loss	0.6 W
Required Terminal Block	TB 16SC
Required Slots	1
Basic Conversion Time	65 ms at 50 Hz or 55 ms at 60 Hz
Integration Time	60 ms at 50 Hz or 50 ms at 60 Hz
Interference Rejection Frequency	50 or 60 Hz
Digital Smoothing	Four configurable stages
Maximum Permanent Input Voltage	20 V DC
Linearity Error	±0.05% of input range
Temperature Error	±0.01% per K
Minimum Crosstalk Rejection	50 dB at 50/60 Hz

Official source:Siemens official technical data for 6ES7123-1FB00-0AB0.

Frequently Asked Questions

Which signal ranges can 6ES7123-1FB00-0AB0 measure?

Configure each channel for the required ±10 V or 1 to 5 V voltage range.

Which terminal block is required for 6ES7123-1FB00-0AB0?

Install the electronic submodule in the specified TB 16SC terminal block.

How can noise be reduced when using 6ES7123-1FB00-0AB0?

Select the appropriate 50 or 60 Hz integration and digital smoothing level for the installation.

Can 6ES7123-1FB00-0AB0 accept current signals directly?

The documented input ranges are voltage ranges, so any current signal requires suitable external conversion.

What should be saved before replacing 6ES7123-1FB00-0AB0?

Record the channel ranges, filtering settings, terminal wiring and slot assignment.

Are the channels on 6ES7123-1FB00-0AB0 individually isolated?

The two analog channels are not isolated from each other.

How should 6ES7123-1FB00-0AB0 be checked after installation?

Verify the 24 V DC supply and compare both channel readings with known reference voltages.

Compatibility & Ordering Notes

Before ordering 6ES7123-1FB00-0AB0: confirm the exact article number, TB 16SC terminal block, two voltage ranges, station slot, 24 V DC supply and saved filtering settings.

Compatibility Checklist

• Use only the specified SIMATIC SC station and terminal block.
• Match both channels to the configured voltage range.
• Observe the documented maximum input voltage.
• Restore integration and smoothing parameters after replacement.
• Check shield routing and reference potential before commissioning.

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