68 Rockwell Automation Publication 1756-PM020F-EN-P - January 2019
See also
Atomic Members of Predefined Data Types on page 63
Read the tag my2Dstruct4[1].today.hourlyCount[3] using both Symbolic
Instance and Symbolic Segment Addressing methods.
Message Request Field Bytes (in hex) Description - Symbol Instance and Symbolic Segment Addressing
Request Service 4C Read Tag Service (Request)
Request Path Size 16 Request Path is 22 words (44 bytes) long
Request Path 20 6B 25 00 4B 0D
28 00
91 07 6D 79 61 72 72 61 79 00
28 01
91 05 74 6F 64 61 79 00
91 0B 68 6F 75 72 6C 79 43 6F 75 6E 74 00
28 03
Logical Segments for Symbol Class ID and Instance ID for myDstruct4
Element ID for element 0
ANSI Ext. Symbolic Segment for myarray
Element ID for element 1
ANSI Ext. Symbolic Segment for today
ANSI Ext. Symbolic Segment for hourlyCount
Element ID for element 3
Request Data 01 00 Number of elements to read (1)
Message Reply Field Bytes (in hex) Description- Symbol Instance and Symbolic Segment Addressing
Reply Service CC Read Tag Service (Reply)
Reserved 00
General Status 00 Success
Extended Status Size 00 No extended status
Reply Data C3 00 Data Type for INT
D0 5C 0x5CD0 = 23760 decimal
See also
Atomic Members of Predefined Data Types on page 63
Read the value of a BOOL named struct2.pilot_on using Symbolic Segment
Addressing. The value of the BOOL is 1.
Example 9 (Both Addressing
Methods)
Example 10 (Symbolic Segment
Addressing Method) with BOOLs
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