Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 162)

Publication 1760-UM002B-EN-P - March 2005
4-52 Wiring with Pico GFX-70
The comparison result of the function block BC01 is: BC01EQ = 0, the data
block ranges do not have the same content.
MB65 and MD81 (Byte 2) are not identical.
Example:
Comparison of marker blocks, range violation error.
Two marker blocks are to be compared. Block 1 starts at MD60, Block 2 at
MD90. Each block is 30 bytes long.
Parameters of BC01 function block:
Comparison range 1:
>I1 MD60
Comparison range 2:
>I2 MD90
Number of bytes:
>NO 30
Comparison
range 1 Value of marker
range 1
(decimal/binary) Comparison range 2 Value of marker range 2 (decimal/binary)
MB60 45/
00101101
MD80 (Byte 1, LSB) 1097219629/
01000001011001100011111000101101
MB61 62/
00111110
MD80 (Byte 2) 1097219629/
01000001011001100011111000101101
MB62 102/
01100110
MD80 (Byte 3) 1097219629/
01000001011001100011111000101101
MB63 65/
01000001
MD80 (Byte 4, MSB) 1097219629/
01000001011001100011111000101101
MB64 173/
10101101
MD81 (Byte 1, LSB) 15277/
0011101110101101
MB65 59/
00111011
MD81 (Byte 2) 15277/
0000100010101101
IMPORTANT
The comparison is in byte format. MD90 to MD96 is 28
bytes. The number of bytes is 30 bytes.