Safety Instrumented System SIS Digital Input Module SM 326F-DI

Safety Instrumented System SIS Digital Input Module SM 326F-DI, Order Number: 6ES7326-1BK02-0AB0. SIMATIC S7， Digital input SM 326, F-DI 24xDC 24V, fault safe digital input with diagnostic alarm for SIMATIC S7 F system, to Class 4 wire (EN 954-1)/SIL3 (IEC61508)/PLE (ISO13849), one 40 pin.

Digital input for the fault safety SIMATIC S7 safety instrumented system SIS, with safety integration function for connections: switches and 2-wire proximity switches, NAMUR sensors and mechanical contacts, as well as hazardous area signals, for safe operation. Centralized for fault safety operation: with S7-31xF-2 DP ET200M distributed: with SIMATIC IM 151-7 F-CPU, S7-31xF-2 DP, S7-416F-2, and S7-400F/FH. In standard operation, it can be used like the S7-300 module.

1、 Application of Safety Instrumented System SIS Digital Input Module SM 326F-DI

The fail safe digital input module is suitable for connecting switches and 2-wire proximity switches (BERO), NAMUR sensors and mechanical contacts, as well as hazardous area signals.

This module can be used as a centralized module with SIMATIC S7-31xF-2DP and can be used with SIMATIC IM 151-7 F-CPU, S7-31xF-2 DP, S7-416F-2, and S7-400F/FH in ET200M distributed I/O stations. They can also be used in non secure standard mode and can respond like standard S7-300 modules.

2、 Design of Safety Instrumented System SIS Digital Input Module SM 326F-DI

The fault-tolerant digital input module has the following mechanical characteristics: compact design;

The sturdy plastic casing includes:

Green LED indicates input signal status;

Green LED indicates safe mode;

Red LED display group error;

The slot of the front connector protected by the front cover;

The label area on the front cover.

3、 Safety Instrumented System SIS Digital Input Module SM 326F-DI Easy Installation
The installation method is the same as other I/O modules of ET 200M, with user-friendly wiring through the front connector

4、 Attention

When operating the 6ES7 326-1RF00-0AB0 fault safety digital input module in a hazardous area, cable 6ES7 393-4AA10-0AA0 is required.

5、 Function

The fail safe digital input module converts the external digital signal level sent from the process into the internal signal level of the SIMATIC S7 CPU, and integrates the fail safe operations required for safety functions into the module.