Main functions

Compact I/O modules

• Up to 32 channels on a module that is 22.5 mm wide
• Up to 56 modules per station

Perfectly suited for applications in the field

• Installation up to hazardous zone 2
• Extended temperature range: -40 to +70 °C
• Enhanced interference immunity in accordance with NAMUR recommendation NE21
• Conformal coating on all components
• Can be used at altitudes of up to 4 000 meters

Wide range of supported module types

• 16Г—AI/8Г—AO HART, 16Г—DI, 16Г—DO etc.

Standard I/O terminal block

• For all 24 V signals AI, AO, DI, DO

Redundant configurations

SIMATIC ET 200SP HA, basic redundant configurations

The availability of the ET 200SP HA distributed I/O can if necessary be increased with redundant configurations. A number of different configurations are possible (the individual redundant configurations can also be combined):

Media redundancy

ET 200SP HA stations with 1 interface module each are connected to an automation system in a ring topology. At least one device in the ring takes on the role of the redundancy manager; the other devices in the rin are redundancy clients. The automation system is configured as MRP manager.

If the ring topology is interrupted, the ET 200SP HA stations in the system remain available.

One of the following functions is possible in runtime:

• Connecting and removing ET 200SP HA stations
• Replacing PROFINET cables

System redundancy

ET 200SP HA stations are connected to a redundant automation system. All components used redundantly are in continuous operation. If a redundancy partner fails, the function is maintained by transferring the master role or selecting a different communication path.

The ET 200SP HA stations remain available in the PROFINET IO system if a CPU or a PROFINET cable fails.

One of the following functions is possible in runtime:

• Connecting and removing ET 200SP HA stations
• Replacing PROFINET cables
• Replacing a CPU

I/O redundancy

To configure I/O redundancy, 2 I/O modules of the same type are inserted beside each other in a terminal block for redundant configuration (width: 45 mm). This terminal block connects the process signals of the two modules to a common process terminal. The advantages are:

• There is less wiring work than for connecting separate I/O modules, as interconnection of the process signals is integrated in the system.
• Redundant signal processing of the sensors and actuators at a module level increases the availability of the system.

The following applies if an I/O module or a channel of one of the two I/O modules fails:

• Error-free inputs remain available in the system.
• Error-free outputs continue to be controlled in the system.

One of the following functions is possible for an I/O module in a module pair in error-free operation:

• Firmware update
• Replacing a module