Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 66)

Publication 1760-UM003A-EN-P - September 2005
6-22 Application Examples for Pico
Table 6.40 Operand overview
Index
(hex) Operand Read Write
00 Parameters Table 6.41 x
01 Control byte Table 6.42 x
02 Comparison value 1
I1
(1)
(1) A 16-bit value is transferred in data bytes Data 1 – Data 2. It should be remembered that the low byte 1 is in
Data 1 (Byte 5) and the high byte 2 (byte 8) in Data 2.
Example: 5327dec = 14CFhex l Data 1 = 0xCF, Data 2 = 0x14
x
c
(2)
(2) The value can only be written if it is assigned to a constant in the program.
03 Comparison value 2
I2 (1) x
c (2)
04 Gain factor for I1
(I1 = F1 x I1)
F1
(1) x
c
(2)
05 Gain factor for I2
(I2 = F2 x I2)
F2
(1) x
c
(2)
06 Offset for value I1 (I1 = OS + actual
value at I1)
OS (1) x
c (2)
07 Switching hysteresis for value I2
HY
(1) x
c
(2)
Table 6.41 Index 00 – Parameters
Meaning Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Appears in the parameter menu
Yes/no 0/1
Compare
FB not used 0 0 0
EQ (=) 0 0 1
GE ( f) 0 1 0
LE ( F) 0 1 1
GT (>) 1 0 0
LT (<) 1 0 1
Use as constant and therefore can be written to
I1= Constant 0/1
F1= Constant 0/1
I2= Constant 0/1
F2 = Constant 0/1
OS = Constant 0/1
HY = Constant 0/1
Not used 0 0 0 0 0 0