SIPLUS

Siemens SIPLUS is the extreme-condition variant line within the Siemens automation portfolio. SIPLUS components are based on standard Siemens SIMATIC, SINAMICS, and related product families but are adapted for operation in environments that exceed the tolerances of standard hardware, including extended temperature ranges, high humidity, condensation, corrosive atmospheres, and vibration-intensive installations.

Standard automation hardware is rated for controlled indoor environments. In industries like mining, offshore oil and gas, chemical processing, outdoor transportation infrastructure, and heavy manufacturing, ambient conditions routinely exceed those limits. SIPLUS hardware addresses this gap by applying conformal coating, modified component selection, and extended temperature qualification to otherwise standard Siemens products.

PLC Direct supplies Siemens SIPLUS hardware to customers for maintenance and component replacement in existing SIPLUS installations. Our collection covers SIPLUS digital I/O modules, HMI panels, CPU modules, and related hardware for ET 200SP, SIMATIC S7-1200, and Comfort Panel applications.

Where Siemens SIPLUS Hardware Is Used

SIPLUS components are specified wherever standard automation hardware cannot meet the environmental demands of the installation. The defining characteristic is not the application type but the operating environment.

Facilities and applications that rely on Siemens SIPLUS hardware include:

• Mining and mineral processing operations with dust, moisture, and vibration exposure

• Offshore oil and gas platforms with high humidity, salt air, and condensation

• Chemical and petrochemical plants with corrosive airborne contaminants

• Outdoor transportation and rail infrastructure automation

• Steel mills and foundries with extreme heat and particulate environments

• Wastewater treatment facilities with high humidity and chemical vapor exposure

• Cold-storage and food processing operations with temperature cycling and washdown conditions

Siemens SIPLUS Products

The SIPLUS collection at PLC Direct covers extreme-condition digital I/O modules, HMI panels, and CPU modules based on standard SIMATIC and Comfort Panel platforms. All product families and part number references below are confirmed on the live PLC Direct collection page.

Product Families

• SIPLUS Digital Inputs for ET 200SP: Extreme-condition digital input modules based on the SIMATIC ET 200SP platform, with conformal coating and extended temperature range operation from -40 °C to +70 °C. The 8-channel 24 V DC DI module (6AG1131-6BF01-7BA0) is based on the standard 6ES7131-6BF01-0BA0 and supports sink input (PNP), input delay from 0.05 to 20 ms, and module diagnostics for short-circuit of sensor supply, wire break, and supply voltage. Suitable for BU type A0, color code CC01

• SIPLUS Comfort Panels Standard: Extreme-condition operator panels based on the SIMATIC HMI Comfort Panel platform, with conformal coating for operation from 0 °C to +50 °C. The SIPLUS HMI TP1200 Comfort (6AG1124-0MC01-4AX0) is based on standard 6AV2124-0MC01-0AX0, providing a 12" widescreen touch panel for harsh-environment HMI applications.

• SIPLUS CPU 1215C: Extreme-condition CPU based on the SIMATIC S7-1200 CPU 1215C, with conformal coating and extended temperature operation from -20 °C to +60 °C. Part number 6AG1215-1AG40-4XB0 is a DC/DC/DC variant with 2 PROFINET ports, 14 DI, 10 DQ, 2 AI, 2 AQ onboard, and 125 KB program/data memory.

Available at PLC Direct

• SIPLUS ET 200SP DI 8x24 V DC with conformal coating, -40 to +70 °C, PNP sink input, BU type A0 (6AG1131-6BF01-7BA0)

• SIPLUS HMI TP1200 Comfort Panel with conformal coating, 0 to +50 °C (6AG1124-0MC01-4AX0)

• SIPLUS S7-1200 CPU 1215C DC/DC/DC with conformal coating, -20 to +60 °C, 2 PROFINET ports, 125 KB memory (6AG1215-1AG40-4XB0)

What to Know Before You Buy Siemens SIPLUS Parts

SIPLUS components are functional equivalents to their standard SIMATIC counterparts but carry extended environmental ratings and conformal coating. Ordering the correct SIPLUS variant requires confirming both the base module compatibility and the required environmental specification.

Hardware condition options: We supply SIPLUS hardware as surplus sealed, refurbished, and used. Surplus sealed units are factory-sealed stock. Refurbished units have been tested and restored to operational condition.

Conformal coating: SIPLUS modules are coated with conformal coating applied during manufacture. This coating protects against moisture, condensation, and corrosive vapors. Standard SIMATIC modules do not have conformal coating and are not suitable substitutes in environments where SIPLUS was originally specified.

Base module compatibility: SIPLUS part numbers reflect the standard SIMATIC product they are based on. The SIPLUS DI module 6AG1131-6BF01-7BA0 is based on 6ES7131-6BF01-0BA0, for example. The base module compatibility ensures that SIPLUS modules integrate into the same ET 200SP or S7-1200 system configurations as their standard counterparts.

Temperature range: SIPLUS modules vary in their extended temperature specifications. The ET 200SP DI module is rated to -40 °C at the low end, while the CPU 1215C variant is rated to -20 °C. Confirm the ambient temperature range at the installation before selecting a SIPLUS variant.

Warranty: All Siemens SIPLUS hardware purchased from PLC Direct includes a standard 1-year warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products.