Installation manual

Publication 1747-RM001G-EN-P - November 2008
12-64 SLC Communication Instructions
Control Block Layout
Table 12.28 SLC 5/05 EtherNet/IP Explicit Message (EEM) Control Block Structure
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 0
Word 0 EN ST DN ER CO EW TO Error Code
Word 1 Extended STS Size (in words) General STS
Word 2 Extended Status Debug Word 1
Word 3 Extended Status Debug Word 2
Word 4 Total Response Size (in bytes)
Word 5 Unused
Word 6 Unused
Word 7 Unused Reserved (internal bits) WQ
Word 8 Reserved (internal bits) Message Timer Preset
Word 9 Message Timer Scaled Zero
Word 10 Message Timer Accumulator
Word 11 Reserved (internal bits)
Word 12 AO=0 Reserved (internal bits)
Word 13 Reserved (internal bits)
Word 14 1st byte of IP Address String 2nd byte of IP Address String
Word 15 3rd byte of IP Address String
----------
Word 34 41st byte of Address String NULL byte of Longest String
Word 35 Unused Message Type = 0 x 13
Word 36 ASA Service Code Internal Object Identifier (IOI): Size
Word 37 Internal Object Identifier (0)
Word 38 Internal Object Identifier (1)
Word 39 Internal Object Identifier (2)
Word 40 Internal Object Identifier (3)
Word 41 Internal Object Identifier (4)
Word 42 Reserved Connection Path Size in Words
Word 43 Connection Path (0)
Word 44 Connection Path (1)
Word 45 Connection Path (2)
----------
Word 57 Connection Path (14)