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.
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 | |||||
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.
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
