10BASE-T/100BASE-TX.
Ethernet interface module capable of selecting the most suitable system and object device.
Support 100BASE-TX, can speed up the transmission speed. (QJ71E71-100)
Data communication can be performed between programmable controller CPU using special instructions.
Can use the HTTP protocol, through the Web browser on the PC access to the soft element of the programmable controller Q172CPU datasheet PDF catalog Q172CPU PDF datasheet Q172CPU
PC (Web) on the use of the communication program library and sample screen can be obtained by download services.
Can connect a number of programming tools to improve the efficiency of debugging.
Make use of e-mail function, through the mail server to send e-mail (ASCII format) and attachments (binary, ASCII and CSV format) Q172CPU datasheet PDF catalog Q172CPU PDF datasheet.
The KeepAlive function can be used to perform the existence of the object equipment inspection, and keep the connection in the open state.
This can be used to ensure connectivity and to quickly find errors. "The most common station 11 units connected network: 121.
The 11 largest network connection units security station: 32.
Maximum network number: 239 sets.
Maximum secure connection of 1 units: 31 connection Q172CPU datasheet PDF catalog Q172CPU PDF datasheet.
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.
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.
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 Q172CPU datasheet PDF catalog Q172CPU PDF datasheet Q172CPU datasheet PDF catalog Q172CPU PDF datasheet. "