Chapter1 Overview 1 - 1 To - Mitsubishi Electric Melsec-QS Series Safety Application Manual

1
OVERVIEW
CHAPTER1 OVERVIEW
This chapter describes the overview of the safety PLC.
The safety PLC is a PLC that acquired the safety approval of EN954-1/ISO13849-1
Category 4 and IEC61508 SIL3.
The safety PLC can be used in safety-related system configuration up to Category 4 of
EN954-1 and SIL3 of IEC61508.
The system configuration diagram of the safety PLC is shown in Figure1.1.
• Install the safety power supply module, safety CPU module, and safety master module
to the safety main base unit.
• Connect the safety master module and the safety remote I/O module to a network.
• Connect a personal computer with GX Developer installed to the safety CPU module via
USB when setting programs and parameters.
GX Developer
(Version 8.40S or later)*1
Standard remote I/O station
Power supply/CPU/CC-Link Safety master module
CC-Link Safety
Standard Remote device station
Figure1.1 System configuration of safety PLC
*1 : The available functions vary depending on the version. For details, refer to the following manual.
QSCPU User's Manual(Function Explanation,Program Fundamentals)
CC-Link Safety remote I/O station
Emergency stop switch
CC-Link Safety CC-Link Safety
remote I/O station remote I/O station
Emergency stop switch
Light curtain
Safety relay
1
- 1
1
2
3
4
5