Safety PLC - Safety controller

Safety controller and Safety PLC

A safety controller or safety PLC has an important role within a safety system. Potential hazards of machines or installations must be managed safely. Safety switches monitor the status of safety devices. When an unsafe situation is detected, the safety relay will give a signal that switches off the energy to the potentially dangerous machine or safely interrupts the safety circuit.

Multiple safety switches

A safety PLC can manage one or more safety switches, such as safety light curtains, photocells, emergency stops, laser scanners, electromechanical switches, magnetic switches, lock safety door switches, RFID switches, safety mats and so on. A safety relay has two functions; on the one hand the processing of the signals from the connected safety switches and components and on the other hand the safe and reliable interruption or disconnection of potentially dangerous machine (functions).

Functions safety PLC

In addition to 'standard' safety relays, there are also wireless and safety PLC's. In applications where there is little or no room for cables, a wireless safety relay can offer the solution. If it is desirable for only a part of the connected safety switches to switch off or fall into emergency stop when an unsafe situation is detected, a safety PLC provides the solution.

 

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Safety controller - Safety PLC - ReeR Safety

Base modules and output modules - Safety PLC


Overview table base- and output modules Safety PLC - ReeR Mosaic
  Base module Output module OSSD Output module relay Expansion module relay
  M1 M1S MO2 MO4 MO4L MO4L HC 58 MOR4 MOR4S8 MR2 MR4 MR8
 
Technical properties
Cat. / PL according to EN ISO 12849-1 4/e 4/e 4/e 4/e
SIL CL according to IEC/EN 62061 3 3 3 3
Safe digital inputs 8 - - -
Relay outputs (output contacts) - - 4 NO 4 NO 2 NO / 1NC 4 NO / 4NC 8 NO / 4NC
Safe, 2-channel outputs OSSD 2 4* 2 4 4* - -
Status outputs 2 4 2 4 8 - 8 -
Build width 22,5 mm 22,5 mm 22,5 mm 22,5 mm 45 mm
Technical specifications and datasheets
Screw terminals M1 M1S MO2 MO4 MO4L MO4L HC S8 MOR4 MOR4S8 MR2 MR4 MR8
Plug-in terminals M1C M1SC MO2C MO4C   MO4L HC S8C MOR4C MOR4S8C MR2C MR4C MR8C

 

Input and output modules + analogue input modules - Safety PLC

Overview table input modules Safety PLC - ReeR Mosaic
  Input module In- and output module Analogue input module
  MI8 MI16 MI12T8 MI8O2 MI8O4 MA2 MA4
 
Technical properties
Cat. / PL according to EN ISO 12849-1 4/e 4/e 4/e
SIL CL according IEC/EN 62061 3 3 3
Safe digital inputs 8 16 12 8 - -
Safe, 2-channel outputs OSSD - 2 4* -
Build width 22,5 mm 22,5 mm 22,5 mm
Technical specifications and datasheets
Screw terminals MI8 MI16 MI12T8 MI8O2 MI8O4 MA2 MA4
Plug-in terminals MI8C MI16C   MI8O2C MI8O4C  MA2C  

 

Speed monitoring modules Safety PLC/Safety controller


Overview table speed monitoring modules Safety PLC - ReeR Mosaic
Speed monitoring module
  MV0 MV1T MV1H MV1S MV2T MV2H MV2S MV1TB MV2TB
 
Technical properties
Cat. / PL according EN ISO 12849-1 4/e
SIL CL according IEC/EN 62061 3
PNP/NPN switches 2
TTL incremental encoder inputs - 1 - - 2 - - 1 2
HTL incremental encoder inputs - - 1 - - 2 - - -
SIN/COS incremental encoder inputs - - - 1 - - 2 - -
Build width 22,5 mm
Technical specifications and datasheets
Screw terminals MV0 MV1T MV1H MV1S MV2T MV2H MV2S MV1TB MV2TB

 

Communication modules - Safety PLC


Overview table Communication modules Safety PLC - ReeR Mosaic
Communication modules
  MBP MBC MBD MBEC MBEI MBEP MBU MBMR MBEM MBCCL
 
Technical properties
Communication interface Profibus DP CANopen DeviceNET EtherCAT Ethernet IP PROFINET USB ModBus RTU ModBus TCP CC-Link
Build width 22,5 mm
Technical specifications and datasheets
Screw terminals MBP MBC MBD MBEC MBEI MBEP MBU MBMR MBEM MBCCL

 

Status modules and Remote I / O - Safety PLC


Overview table of status modules and Remote I / O modules
  Status modules Remote I/O modules
  MCT-1 MCT-2 MOS8 MOS16
 
Technical properties
Cat. / PL according EN ISO 12849-1 2/c -
SIL CL according IEC/EN 62061 2/c -
status inputs 8 16 -
Remote I/O cables - 1 2
Build width 22,5 mm
Technical specifications and datasheets
Schroefklemmen MCT-1 MCT-2 MOS8 MOS16

 

Configurable software - Safety PLC - ReeR Safety

Software (MSD) - Safety PLC

The safety PLC Mosaic from ReeR Safety is easy to program with the free supplied software. The image on the right shows the basic screen of a security system entered in the MSD software. The software works through 'drag and drop'. All different parts can be dragged and moved.

Project reporting and log files

The ReeR M1 main module has a USB connection that allows you to connect the main module to your PC via a USB cable. The software allows to validate the software design in the form of a simulation and project report. The project report contains the name of the project, configuration, safety information (PFHd, MTTFd, DCavg) and the modules, resources and parts used. The software generates a log file with the date when the project was created with the related checksum (CRC 4-digit hexadecimal identification) which is stored in the M1 module.

Mosaic Configuration Memory

If it is a standard security system or largely standard, the 'Mosaic Configuration Memory' is a time-saving solution. A previously programmed security system can easily be transferred to another ReeR M1 module by means of a memory card.

 

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Applications safety PLC - Mosiac

Using the safety PLC Mosaic from ReeR not only saves cabling in your cabinet, the number of relays can also be reduced by applying the Mosaic. The safety PLC Mosaic is used in the following application examples:

 

Protection of robot with light curtains

 

 

 

Application example - Safety PLC - ReeR Safety

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