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2 DATA COMMUNICATION USING PREDEFINED PROTOCOL
2.1 Data Communication Procedure
Creating protocol setting data
Create a protocol setting data using the Predefined protocol support function.
■Selecting target module of a protocol setting data
Select a target module of the protocol setting data.
Engineering tool [Tool] [Predefined Protocol Support Function]
■Creating new protocol setting data
Create a new protocol setting data.
[File][New]
Item Description
Protocol No. Displays the protocol number to be used for a predefined protocol dedicated instruction in programs.
Manufacturer Displays the manufacture's name of a device to which a protocol to be set is applied.
Model Displays the model name of a device to which a protocol to be set is applied.
Protocol Name Displays the name of a protocol to be set.
Communication Type Displays the communication type in a protocol to be set.
• Send Only: Send one send packet once.
• Receive Only: Receive a packet if it matches any of up-to-16 registered receive packets.
• Send&Receive: Send one send packet, and receives a packet if it matches any of up-to-16 registered receive packets.
Send/Receive Displays the packet direction.
• : For 'Send'
• (1) to (16): For 'Receive', a receive packet number is displayed in ().
Packet Name Displays the packet name.
Packet Setting Displays the existence or non-existence of variables in an element, and set or unset of the variables.
With 'Variable Unset', 'Element Unset', or 'Element error', the settings cannot be written to a CPU module or C24.
• No Variable: There is no variable in the element.
• Variable Set: All variables are set.
• Variable Unset: There are one or more unset variables.
• Element Unset: There is no element in the editable protocol.
• Element error: The element does not meet requirement.
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