Festo Контроллер позиционирования CPX-CMAX - Manual (Page 25)

1. CPX terminal configuration and FHPP overview
1−5
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
1.2 Data format
Multi−byte values are usually interpreted by CMAX in the byte
sequence INTEL (LSB−MSB)".
INTEL (LSB−MSB) − little endian
Example 21.268.514
d
= 01Ă44Ă88Ă22
h
Byte address 0 1 2 3
Bit no. 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Bin 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1
Hex 22h 88h 44h 01h
If your control system uses another byte sequence, you must
take this into consideration accordingly, e. g. in your applica Ć
tion programs.
CPX parameter Analogue process value representation"
A few CPX nodes (e. g. CPX−F B13, FB33, FB34 and FB35) supĆ
port the global system parameter Analogue process value
representation" (system table function number 4402, bit 7):
ć Value 0": INTEL (LSB−MSB) ć default
ć Value 1": MOTOROLA (MSB−LSB)
MOTOROLA (MSB−LSB) − big endian
Example 21.268.514
d
= 01Ă44Ă88Ă22
h
Byte address 0 1 2 3
Bit no. 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Bin 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 1 0
Hex 01h 44h 88h 22h