AH500 Module Manual The Tx/Rx packet consists of message, address, length and checksum. Multiple messages and one address, length and checksum may exist in the packet. Explanation of packet edit interface: The Message Variable Edit interface is as follows. 11-46 Item Explanation Packet Name For editing the name of the packet Packet View Displays the content of the edited packet Packet Segment Edit Adjusts the sequence of the packet segments, adds and deletes the segment packet No: It displays the number of the packet segment. Maximum 64 segments can be edited in one packet. Class: Displays the segment class including message, address, length and checksum Format:
Displays the data format of the segment including Hex, ASCII, Code and etc Segment view: Description of the segment content. Message Constant and Variable are selectable for editing the message which can be used in the header, start bit, end bit and data segment of the packet. One packet could contain multiple messages. Address Constant and Variable are selectable to edit the address. One packet contains only one address segment. Length For editing the length of the packet One packet contains only one address segment. Checksum For editing the check code One packet contains only one checksum segment. Constant The value is fixed.
Format Sets the data format to Hex, ASCII or Code Code indicates that the data use the handle. Variable The input value is variable, which means the mapping register could be specified as the internal register in AH10SCM-5A or that in PLC.