Festo CPX-2AA-U-I, Electronic Manual

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3. An al ogu e i npu t modu le CPX− 4AE −I
3−13
F est o P. BE −CPX− A X− E N e n 0503 b
Rea c ti on w it h t h e d efa u lt setti ng s
Th e modu le p a r a m ete r I npu t a n al ogu e− v al u e d ata f orm at "
po ssesses t h e d efa u lt setti ng VZ + 12 b its r i gh t−j u stifie d"
( comp ati b le w it h v al v e te rm i n al t yp e 03). W it h t h is setti ng t h e
a n al ogu e v al u es w ill b e sa v e d i n t h e i npu t word as f o ll ow s:
D ata for mat VZ + 12 b its r i gh t −j usti f ie d" ( c o m p ati bl e w it h v a lv e te r mina l t yp e 03)
D15 D1 4 D13 D12 D11 D10 D9 D8 D7 D6 D5 D 4 D3 D2 D1 D0
VZ 0 0 0 B 11
MSB
B 10 B 9 B 8 B 7 B 6 B 5 B4 B 3 B 2 B 1 B 0
LSB
Abbr e v iati on s u se d :
VZ: S i gn ( w it h d ata f orm at VZ + 12 b its r i gh t−j u stifie d" al w a y s = 0, i.e. a po siti v e v al u e)
B 0 ... B 11: I npu t v al u e
D0 ... D15: 16 b its i npu t d ata fiel d
MSB/LSB : Mo st si gn ifi c a n t b it / least si gn ifi c a n t b it
T a b .3 / 6: Data f orm at VZ + 12 b its r i gh t−j u stifie d"
Th e ch a nn el−s p e c ifi c p a r a m ete r s Low e r li m it " a nd U pp e r
li m it " po ssess t h e f o ll ow i ng d efa u lt setti ng s:
Low e r li m it = 0
U pp e r li m it = 4 095
Th ese corr es pond t o t h e s c ali ng e nd v al u es ( d ata r a ng e) o f
t h e d efa u lt d ata f orm at.