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Product information
SIMATIC S7 digital input SM 326 with part number 6ES7326-1RF01-0AB0 provides fail-safe NAMUR inputs for SIMATIC S7 F-systems up to category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849).
Detailed Parameters
Product type:digital input
Product family:SIMATIC S7
Module:SM 326
Spare part:Yes
Number of digital inputs:8 DI
Input supply voltage:24 V DC
Input type:NAMUR
Fail-safe NAMUR input for SIMATIC S7 F-systems:Yes
Safety category/ SIL/ PLe:up to category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849)
Connector type:1x 40-pole
Engineering Context
The module is a SIMATIC S7 digital input SM 326 designed as a fail-safe NAMUR input for SIMATIC S7 F-systems.
With 8 DI at 24 V DC, the module supports NAMUR input signaling for the SIMATIC S7 F-systems safety function targets stated.
The module provides a 1x 40-pole connection for interfacing in the SIMATIC S7 system configuration.
FAQ
1. What is the module type for 6ES7326-1RF01-0AB0?
It is a SIMATIC S7 digital input module, SM 326.
2. How many digital inputs are provided?
The module provides 8 DI.
3. What input signaling type and supply voltage are specified?
It uses NAMUR input signaling with 24 V DC.
4. Is the input described as fail-safe for SIMATIC S7 F-systems?
Yes, it is a fail-safe NAMUR input for SIMATIC S7 F-systems.
5. What safety performance target is stated for the module?
Up to category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849).
6. What connection format is specified?
It specifies 1x 40-pole.






