REOVIB MFS 268
Operating Instructions
EtherNet/IP - Programming
7
5.2 Parameter Operation
In parameter operation, the specific unit parameters can be monitored and adjusted.
A `write` enable must be transmitted before parameters can be altered. On closing, the `write` enable
must be cancelled.
A `read` request must be sent before data can be read.
Word 3 in the acknowledge is always `C0DE H`. This indicates that the controller is in parameter mode.
5.2.1 Creating parameter addresses and values
In parameter operation the most significant bit (msb) in Word 1 is defined as a read or write bit (R/W),
where 1 = write and 0 = read, this should be accompanied by the corresponding parameter address.
The mode bit (msb in Word 3) is used to select normal or parameter operation, 0 = Normal or 1 = pa-
rameter operation.
Word 1:
reserved
0000 H
Word 2:
R / W – Bit + Address
e.g. 8000 H + 1009 H => 9009 H
Word 3:
Value of the parameters
e.g. 7FFF H
Word 4:
Mode bit = 1 + Control bit’s
e.g. 8000 H + 0004 H => 9004 H
5.2.2 Send Write Enable
H-Byte
L-Byte
Word 1
0000 H (reserved)
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
H-Byte
L-Byte
Word 2
Write Enable Address = C0DE H
C0
DE
H-Byte
L-Byte
Word 3
Write Enable = B5E7 H
B5
E7
H-Byte
L-Byte
Word 4
Control - Word + 8000 H
Mode Bit must be set to `1` !!
All unused bits must be set to `0`
Bit = `1` = Function ON
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
1
M
o
d
e
b
it
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Control Information unit specific
