SEC PB4-DY Output logic module

Product details description：

SEC PB4-DY Output logic module

  The MELSEC protocol is used to communicate between the MP2000 Series Machine Controller and a MELSEC Programmable Logic Controller. To achieve this, the PB4-DY Module automatically converts the protocol to the MELSEC protocol. The MSG-SND and MSG-RCV functions can be used in a user program in the same way as with the MEMOBUS protocol. The PB4-DY supports the following three functions of the MELSEC protocol.

 The Extended MEMOBUS protocol is an enhanced version of the MEMOBUS protocol. PB4-DY provides more versatile function codes and is capable of handling a larger data size. Data transmissions are performed in Master-Slave relationships in which the Master sends a message to a Slave and the Slave returns a response to the Master. The Extended MEMOBUS protocol supports the MEMOBUS message communication mode and a general-purpose message communication mode. The mode that is used is specified in a parameter in the MSG-SND and MSG-RCV functions.

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