5 Outline of Motion Control Systems
5.3.1 Types of Registers
5-22
( 2 ) Function Registers
The following table shows the registers that can be used with each function.
n: Decimal number; h: Hexadecimal number
B, W, L, F, and A: Data type (B: Bit, W: Integer, L: Double-length integer, F: Real number, A: Address. Refer to
5.3.2
Data Types and Register Specifications
on page 5-24
.
)
SA, MA, IA, OA, DA, #A, and CA registers can be used within functions.
Type
Name
Specification Method
Range
Details
Characteristics
X
Function input
registers
XB, XW, XL, XFnnnnn
XW00000 to
XW00016
Input to functions
Bit input: XB000000 to XB00000F
Integer input: XW00001 to XW00016
Double-length integer input: XL00001 to
XL00015
Unique to each
function
Y
Function output
registers
YB, YW, YL, YFnnnnn
YW00000 to
YW00016
Output from functions
Bit output: YB000000 to YB00000F
Integer output: YW00001 to YW00016
Double-length integer output: YL00001
to YL00015
Z
Internal function
registers
ZB, ZW, ZL, ZFnnnnn
ZW0000 to
ZW00063
Internal registers unique to each function
Can be used for function internal
processing.
A
External function
registers
AB, AW, AL, AFhhhh
AW0000 to
AW32767
External registers with the address input
value as the base address.
For linking with S, M, I, O, #, and
DAnnnnn.
＃
# registers
#B, #W, #L, #Fnnnnn
(#Annnnn)
#W00000 to
#W16383
Call-only registers
Can be called only from the relevant
function. The usage range is set by the user
using MPE720.
D
D registers
DB, DW, DL, DFnnnnn
(DAnnnnn)
DW00000 to
DW16383
Internal registers unique to each function.
Can be called only the relevant function.
The usage range is set by the user using
MPE720.
S
System registers
SB, SW, SL, SFnnnnn
(SAnnnnn)
Same as DWG registers
These registers are shared by drawings and functions. Pay attention to how
these registers are to be used when calling the same function from a drawing of
a different priority level.
M
Data registers
MB, MW, ML,
MFnnnnn
(MAnnnnn)
I
Input registers
IB, IW, IL, IFhhhh
(IAhhhh)
O
Output registers
OB, OW, OL, OFhhhh
(OAhhhh)
C
Constants registers
CB, CW, CL, CFhhhh
(CAnnnn)
