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CHAPTER 11 DATA COMMUNICATIONS USING THE PREDEFINED PROTOCOL
11
CHAPTER 11 DATA COMMUNICATIONS USING
THE PREDEFINED PROTOCOL
Data can be transferred between a connected device and the CPU module with a protocol appropriate to the
connected device (such as a measuring instrument or a bar code reader).
Device or buffer memory data can be taken into communication packets, and thereby this protocol communications are
suitable for data that may change in each communication.
The protocol setting required to communicate with the connected device can be configured in GX Works2.
Protocols can be selected from the Predefined Protocol Library or can be created and edited.
This function is available only in the E71 with the serial number (first five digits) of "15042" or later.
For the protocol setting method, refer to the following.
GX Works2 Version 1 Operating Manual (Intelligent Function Module)
Protocols can be set easily using the predefined
protocol support function of GX Works2.
Write the set protocols in the flash ROM of the E71.
Execute protocols by dedicated instructions.
Multiple protocols can be executed by one dedicated
instruction.
Data can be communicated
with protocols appropriate to
each connected device.
Connected device Connected deviceE71
GX Works2
Sending
Receiving
1) Setting protocols 2) Writing protocols
3) Executing protocols
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