Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 117)

Publication 1760-UM003A-EN-P - September 2005
Pico GFX Control Commands 7-37
3 – 6 4 – 7 Data 1 – 4
Read operation 00 depending on
index,Table 6.133
Write operation depending on index,
Table 6.133 00
Table 6.132 Operand Overview
Index
(hex) Operand read write
00 Bit IO, Table 6.133 x
01 Mode/Parameter – –
02 Comparison value I1 x
c
(1)
(1) The value can only be written if it is assigned to a constant in the program.
03 Comparison value I2 x
c
(1)
TIP
The data for index 2 and 3 is transferred as a 32-bit
value in Intel format (Data 1 – Low Byte to Data 4 –
High Byte).
Table 6.133 Index 0 – Bit IO
FB output Data 3
Bit 7 6 5 4 3 2 1
– – – –
GT
(1)
(1) greater than: Status 1 if the value at I1 is greater than value at I2 (I1 > I2)
EQ
(2)
(2) equal: Status 1 if the value at I1 is equal to value at I2 (I1 = I2)
LT
(3)
(3) less than: Status 1 if the value at I1 is less than value at I2 (I1 < I2)
Table 6.131 Telegram Structure
Byte Meaning Value (hex), sent by
Master Slave Master Slave