![]() ![]() It will typically be a user-defined data buffer, or one of the system-defined Short Strings (SS0 - SS127), or system-defined Long Strings (SL0 - SL63), or any of the user-definedĬhecksum Function - selects the type of checksum calculation to be performedĬhecksum:8 - The checksum value is the 8-bit sum of the ASCII values of all of theĬharacters within the string. Although this any readable numeric location in the CPU, On Buffer - the data buffer that contains the data used to calculate the checksum. Use the F9 key to open the Default Element Selection Tool (the Element Picker or the Element Browser) or use the Down-Arrow key (Auto-Complete) onĪny parameter field to see a complete list of the memory locations that are valid for that parameter of the instruction. Not equal the value in the checksum filed of the message. An error results if the calculated value does At the end of the message the receiving device compares the calculated value to the value it received in the checksum field. ![]()
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