dl-breadcrumbs__homedl-breadcrumb-item__separatorAC500-S safety PLCdl-breadcrumb-item__separatorSafety user manual V1.3.2dl-breadcrumb-item__separator...dl-breadcrumb-item__separatorOverview of AC500-S safety PLCdl-breadcrumb-item__separatorOverviewdl-breadcrumb-item__separatorSystem
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This is the web edition of the original ‎⮫ AC500-S safety user manual, version 1.3.2. This web edition is provided for quick reference only. The original safety user manual must be used to meet functional safety application requirements.

The AC500-S safety PLC is an integrated part of AC500 platform with a real common look & feel engineering approach. Due to a tight integration in AC500 PLC platform, the generic AC500 system characteristics (mechanics, programming, configuration etc.) are also valid for AC500-S safety modules.

All non-safety AC500 modules are considered to be interference-free modules for AC500-S safety PLC. In contrast to safety modules, interference-free modules are not used to perform safety functions. A fault in one of these modules does not influence the execution of the safety functions in a negative way.

The term "integrated safety" applied for AC500-S safety PLC and AC500 platform means:

  • One PROFINET IO fieldbus is used for safety and non-safety communication.

  • The same engineering environment with real look & feel is used for both safety and non-safety programming.

  • The same hardware and wiring look & feel is used within safety and non-safety modules.

  • The same diagnostics concept is used for safety and non-safety modules.

Fig. 428: Overview on ABB’s AC500 family with safety and non-safety modules
02.01.001_AC500 family

1

Non-safety communication module
AC500 covers all common communications standards, such as Ethernet, EtherCAT, PROFINET IO, PROFIBUS DP, CANopen, DeviceNet, Modbus TCP, Modbus serial, Serial, ABB CS31 and PROFIsafe via PROFINET. Combinable to form optimally scaled network nodes, ABB’s AC500 is suitable for both small-scale applications and large-scale industrial systems.

2

Safety CPU
Safety CPUs certified up to SIL 3 (IEC 61508), max. SIL 3 (IEC 62061) and PL e (ISO 13849-1). An array of features such as system diagnostics provided via LEDs and onboard display of non-safety CPUs provides the added diagnostic concept required for integrated safety.

3

Non-safety CPU
ABB’s complete AC500 range of non-safety CPUs can be used with safety CPU to create customized solutions - even for the most challenging requirements. The programming of safety and non-safety applications is offered via a non-safety PLC interface.

4

Safety I/O module
Safety I/O modules certified up to SIL 3 (IEC 61508), max. SIL 3 (IEC 62061) and PL e (ISO 13849-1). Features such as channel-wise error diagnostics and the flexibility to choose between channel-wise or module switch-off in case of channel error make working safely easier.

5

Non-safety I/O module
With ABB’s non-safety I/O modules, the complete S500 and S500-eCo I/O module range can be connected to the non-safety PLC. A wealth of functions in AC500 configurable I/O modules allows getting the customized and low-priced solutions to optimize industrial applications.