S5 Standard Function Block MUL32 and Div32

I only have the declear part of the MUL/DIV FBs, I past it as below.

Does anyone can provide litter bit more information about those parameters in Blocks

Name MUL:32
Decl :Z12 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z11 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z22 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z21 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z3 I/Q/D/B/T/C : Q BI/BY/W/D :BI
Decl :Z34 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z33 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z32 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z31 I/Q/D/B/T/C : Q BI/BY/W/D :W

Name DIV:32
Decl :Z12 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z11 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z22 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :Z21 I/Q/D/B/T/C : I BI/BY/W/D :W
Decl :OV I/Q/D/B/T/C : Q BI/BY/W/D :BI
Decl :FEH I/Q/D/B/T/C : Q BI/BY/W/D :BI
Decl :Z3=0 I/Q/D/B/T/C : Q BI/BY/W/D :BI
Decl :Z4=0 I/Q/D/B/T/C : Q BI/BY/W/D :BI
Decl :Z32 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z31 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z42 I/Q/D/B/T/C : Q BI/BY/W/D :W
Decl :Z41 I/Q/D/B/T/C : Q BI/BY/W/D :W

Hi,

download the manual from this web link:

http://support.automation.siemens.c...ib.csFetch&nodeid=19394547&forcedownload=true

Then consults page 22 till page 27 (of the pdf document)to have the informations you need.......

thank you