Input points: 8 points (dual input), 16 points (single input).
Isolation mode: photoelectric coupling.
Rated input voltage: DC24V.
Output points: 4 points (select the source type + drain type), 2 points (when selecting the source type + source).
Isolation mode: photoelectric coupling.
Rated input voltage: DC24V Q2ACPU AD57 Instructions Manual Q2ACPU PROGRAMMING MANUAL.
Security PLC (secure programmable system) refers to the self or external components or the implementation of the failure of the agency,
Can still respond to and promptly cut off the output of the programmable system Q2ACPU
Different from ordinary PLC, security PLC not only can provide the function of ordinary PLC,
Safe control function can be realized,
Meet the requirements of the ISO 13849-1 EN and IEC 61508 control system safety related component standards Q2ACPU AD57 Instructions Manual Q2ACPU PROGRAMMING MANUAL.
PLC security market mainstream has oilz (Pilz) PSS 3000, PSS 4000,
PSS 4000 in addition to the security process can also be processed outside the standard control procedures.
All the components in the security PLC adopt the redundancy structure,
Two processor processing for cross detection,
The processing results of each processor are stored in their respective memory,
Output is only when the processing result is in full agreement,
If any inconsistency occurs during the process, the system is immediately shut down Q2ACPU AD57 Instructions Manual Q2ACPU PROGRAMMING MANUAL. Input and output points: 512 points.
Input / output data points: 8192 points.
Program capacity: 28k.
Basic command processing speed (LD command) S:0.2.
PLC in the program execution stage: according to the order of the user program order to store the order of each instruction,
After the corresponding operation and processing, the result is written to the output status register,
TThe contents of the output status register are changed with the execution of the program Q2ACPU AD57 Instructions Manual Q2ACPU PROGRAMMING MANUAL.
Output refresh phase: when all instructions are executed,
The output status register is sent to the ooutput latch in the output refresh stage,
And through a certain way (relay, transistor or transistor) output, drive the corresponding output equipment Q2ACPU AD57 Instructions Manual Q2ACPU PROGRAMMING MANUAL.