6ES7288-2DE16-0AA0

A 16-channel digital input expansion module for the SIMATIC S7-200 SMART platform, designed for 24 V DC field signals and supporting sink/source input wiring.

Expanding 24 V DC Field Signal Capacity

The EM DE16 is used with the SIMATIC S7-200 SMART system when additional digital field signals must be acquired beyond the available CPU input capacity. Typical connected devices can include switches, sensors, interlocks, auxiliary contacts and other 24 V DC discrete signal sources.

When a Missing Input Signal Can Stop the Sequence

In an S7-200 SMART installation, an input expansion module may be investigated when multiple field signals are unavailable, channels fail to respond, or a control sequence cannot advance because expected 24 V DC status feedback is not reaching the CPU.

Because interlocks, sensor feedback and machine permissives can depend on discrete input states, loss of reliable signal acquisition can interrupt automatic operation. In production equipment, that can extend troubleshooting time and increase the risk of unplanned downtime until the input path is restored.

SIEMENS 6ES7288-2DE16-0AA0 expands a SIMATIC S7-200 SMART system with 16 digital input channels for 24 V DC field signals.

The 16 digital inputs are arranged in four groups, with support for parallel switching and sink/source signal connection.

For SIEMENS 6ES7288-2DE16-0AA0, a digital “1” is specified within the +15 to +30 V DC range, while a digital “0” is below 5 V DC.

At rated input voltage, the maximum standard input delay is 200 μs for both 0-to-1 and 1-to-0 transitions.

No. SIEMENS 6ES7288-2DE16-0AA0 is dedicated to digital input expansion and provides 16 digital inputs with no digital outputs.