Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 106)

Publication 1760-UM003A-EN-P - September 2005
7-26 Pico GFX Control Commands
Table 6.108 Operand overview
Index
(hex) Operand read write
00 Bit IO, Table 6.109 x
01 Mode, Table 6.110 x
02 Source range 1 I1 x
c
(1)
(1) The value can only be written if it is assigned to a constant in the program.
03 Target range 2 I2 x
c
(1)
04 Number of elements to compare: 8 (max.
192 bytes) NO x
c
(1)
TIP
The data for index 2 to 4 is transferred as a 32-bit
value in Intel format (Data 1 – Low Byte to Data 4 –
High Byte).
Table 6.109 Index 0 – Bit IO
Bit 7 6 5 4 3 2 1 0
FB input Data 1 – – – – – – –
EN
(4)
(4) Activates the function block on status 1.
FB output Data 3 – – – –
EQ
(1)
(1) Status 1 if the data ranges are equal; status 0 if not equal
E3
(2)
(2) Status 1 if the number of elements exceeds the source or target range.
E2
(3)
(3) Status 1 if the source and target range overlap.
E1
(5)
(5) Status 1 if the source or target range are outside of the available marker range (offset error)
Table 6.110 Index 1 - Mode
Mode Data 1 (hex) Mode
02 Compare (internal status signal for Block Compare
mode)