What I/O allocations are documented for 6ES5482-4UA20?

Siemens specifies 16 digital inputs with 16 outputs, or 24 digital inputs with 8 outputs.

Which channels are fixed outputs?

Channels 0.0–0.7 are fixed digital outputs in the Siemens manual.

Which channels are fixed inputs?

Channels 2.0–3.7 are fixed digital inputs.

How does the flexible byte operate?

Channels 1.0–1.7 are read as inputs or written as outputs according to the approved program.

Does -4UA20 include the IP 257 interface?

No. Siemens distinguishes -4UA20 from -4UA11 by the missing IP 257 connection interface.

6ES5482-4UA20

Name: 6ES5482-4UA20
Brand: Siemens
SKU: 6ES5482-4UA20

SIMATIC S5 DI/DQ 482 configurable digital I/O module

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Ships by Wednesday, October 14

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Product Describe：

Siemens 6ES5482-4UA20 is a 32-channel SIMATIC S5 digital I/O module for a verified S5-135U/155U system. It supports 16 DI/16 DO or 24 DI/8 DO; the configurable byte must match the installed program and wiring.

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Technical specifications Information Technical notes FAQ

Technical specifications for 6ES5482-4UA20

Manufacturer:

Siemens
Product Category:

PLC Systems
Spare Part Number:

6ES5482-4UA20
Estimated shipping dimensions:

2x19.5x25.5cm
Weight:

0.38 kg
Tariff Code:

8537101190
Counliy of origin:

USA
I/O allocation:

16 DI / 16 DO or 24 DI / 8 DO
Nominal input:

24 V DC
Signal-0 input:

−33 to +7 V
Signal-1 input:

+13 to +33 V
Nominal input current:

7 mA typical
Input delay:

0.3 ms typical
Output supply:

20–30 V DC
Output current:

5 mA to 0.5 A
Total output current:

Maximum 4 A per eight outputs
IP 257 interface:

Not present on -4UA20

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Information

Overview Manuals Common Applications Product Precautions

Siemens 6ES5482-4UA20 is a 32-channel SIMATIC S5 digital input/output module for the S5-135U/155U.

16 digital inputs / 16 outputs or 24 inputs / 8 outputs
24 V DC input circuits and 20–30 V DC output supply
Output current from 5 mA to 0.5 A per channel
The -4UA20 does not include the IP 257 interface

Channels 1.0–1.7 follow the configured program read/write allocation.

Important Notice: Match the exact -4UA20 suffix, wiring and controller program before replacement.

6ES5482-4UA20 Manuals & Downloads

6ES5482-4UA20 Technical Reference (PDF)6ES5482-4UA20 Installation & Commissioning Guide (PDF)

The first PDF records exact-suffix Siemens specifications; the second is a separate installation and acceptance checklist.

Mixed digital I/O

Provide the documented 24 V DC input/output mix.

Configurable byte

Use channels 1.0–1.7 as the approved program reads or writes.

S5 expansion I/O

Install in an approved S5-135U/155U architecture.

Fault diagnosis

Check the red short-circuit indicator for each output group.

Confirm the complete 6ES5482-4UA20 identity; do not substitute -4UA11.

Verify 16 DI/16 DO or 24 DI/8 DO allocation in the program.

Document fixed outputs 0.0–0.7 and fixed inputs 2.0–3.7.

Check flexible channels 1.0–1.7 against read/write access.

Measure the 24 V DC input and 20–30 V DC output supplies.

Observe the 0.5 A channel and 4 A eight-output limits.

Confirm the specified 7 A fast fuse per eight outputs.

Inspect output-group fault indication and approved wiring.

Release only after controlled I/O acceptance testing.

Technical notes

Siemens specifies 6ES5482-4UA20 for 16 inputs/16 outputs or 24 inputs/8 outputs in the S5-135U/155U. Verify the configured flexible byte and exact -4UA20 suffix before replacement.

FAQS

What I/O allocations are documented for 6ES5482-4UA20?

Siemens specifies 16 digital inputs with 16 outputs, or 24 digital inputs with 8 outputs.
Which channels are fixed outputs?

Channels 0.0–0.7 are fixed digital outputs in the Siemens manual.
Which channels are fixed inputs?

Channels 2.0–3.7 are fixed digital inputs.
How does the flexible byte operate?

Channels 1.0–1.7 are read as inputs or written as outputs according to the approved program.
Does -4UA20 include the IP 257 interface?

No. Siemens distinguishes -4UA20 from -4UA11 by the missing IP 257 connection interface.

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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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6ES5482-4UA20