Configuration
The SIMATIC S7‑1500 automation system is made up of the following components:
·CPU (standard, fail-safe, compact or technology CPU)
·Digital and analog I/O modules
·Communications modules (PROFINET/Ethernet, PROFIBUS, point-to-point)
·Technology modules (counting, position detection, time-based IO)
·Load current supply
·System power supply (optional)
You install the S7‑1500 automation system on a mounting rail. You can install up to 32 modules (CPU, system power supply and 30 I/O modules) on the mounting rail. You connect the modules to each other with U connectors.
Configuration example
① System power supply
② CPU
③ I/O modules
④ Mounting rail with integrated DIN rail profile
Example configuration of an S7‑1500 automation system
Configuration of the distributed I/O system SIMATIC ET 200MP
Configuration
The SIMATIC ET 200MP distributed I/O system is made up of the following components:
·Interface module (PROFINET or PROFIBUS)
·Digital and analog I/O modules
·Communications modules (point-to-point)
·Technology modules (counting, position detection, time-based IO)
·System power supply (optional)
The ET 200MP distributed I/O system is installed on a mounting rail like the S7-1500 automation system. The I/O modules of the SIMATIC ET 200MP distributed I/O system can be used in a decentralized configuration (with an ET 200MP interface module) or in a centralized configuration (with an S7-1500 CPU).
Example of a configuration with the IM 155-5 PN ST interface module
① Interface module
② I/O modules
③ System power supply
④ Mounting rail with integrated DIN rail profile
Example of a configuration of the ET 200MP with IM 155-5 PN ST
Example of a configuration with the IM 155-5 DP ST interface module
① Interface module
② I/O modules
③ Mounting rail with integrated DIN rail profile
Example of a configuration of the ET 200MP with IM 155-5 DP ST
① Interface module
② I/O modules
③ Power supply (optional)
④ Fail-safe I/O modules
⑤ Mounting rail with integrated top-hat rail
Configuration example of the ET 200MP with fail-safe I/O modules
Hardware and software requirements
You use the S7‑1500/ET 200MP fail-safe I/O modules:
·In S7‑1500 with S7‑1500 F-CPUs as of firmware version V1.7
·Distributed in ET 200MP with S7‑1500 F-CPUs as of firmware version V1.5 and all F-CPUs that can be selected in the hardware catalog of the TIA Portal
Fail-safe I/O modules in ET 200MP require the following interface modules:
·IM 155-5 PN BA, as of firmware version V4.3
·IM 155-5 PN ST, as of firmware version V3.0.0
·IM 155-5 PN HF, as of firmware version V3.0.0
·IM 155-5 DP ST, as of firmware version V3.0.0
To configure and program fail-safe I/O modules S7‑1500/ET 200MP , you need:
·STEP 7, V13 SP1 or higher
·The option package STEP 7 Safety Advanced as of V13 SP1 + HSP0086
Use in safety mode only
You can only use the S7‑1500/ET 200MP fail-safe I/O modules in safety mode. They cannot be used in non-fail-safe mode, i.e. standard mode.
Achievable safety classes
Fail-safe I/O modules are equipped with integrated safety functions for safety mode.
You can achieve the safety classes of the table below:
·By corresponding parameter assignment of the safety functions in STEP 7
·With a specific combination of fail-safe and non-fail-safe I/O modules as well as
·With a special arrangement and wiring of the sensors and actuators
Safety classes that can be achieved with S7‑1500/ET 200MP in safety mode
Safety class in safety mode
According to IEC 61508:2010 = Category 3 = SIL3
According to ISO 13849‑1:2015 (PL) = Category 3 = Performance Level d
According to IEC 61508:2010 = Category 4 = SIL3
According to ISO 13849‑1:2015 (PL) = Category 4 = Performance Level de
Additional information
An overview of the technical specifications of the fail-safe I/O modules can be found in section Fail-safe digital modules.
The applications and wiring for the particular safety class are described in the manuals of the fail-safe I/O modules
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