Register Specification Methods - YASKAWA JEPMC-MP2300-Y Series User Manual

5.3.4 Register Specification Methods

Registers can be specified directly by register number or by symbol (register name) specification. A
combination of both of these register specification methods can be used in ladder programs.
When using the symbol specification method, the relationship between symbols and register numbers
must be defined.
The following table shows the register specification methods.
Specification
Method
Bit register:
Integer register:
Register
Double-length integer register:
number direct
Real number register:
specification
Address register:
X: When specifying subscripts, subscript i or j is added after the register number.
Bit register:
Integer register:
Double-length integer registers:
Real number registers:
Symbol
Address registers:
specification
↓
X: When specifying subscripts, a period (.) is added after the symbol (8
alphanumeric characters max.) and then a subscript i or j is added.
Direct Specification of
Register Number
Register No.: No.
V T
Register type
(DWG: S, M, I, O, C, #, or D)
(Function: S, M, I, O, C, #, D, X, Y, Z, or A)
Symbol
Specification
Symbol: Symbol name
Specification Example by Data Type
MB00100AX
MW00100X
ML00100X
MF00100X
MA00100X
RESET1-A.X
STIME-H.X
POS-REF.X
IN-DEF.X
PID-DATA.X
8 alphanumeric characters max.
Bit No. Subscript
Subscript i or j can be specified
When T = B (bit register) (hexadecimal: 0
to F)
Register number allocated for V
(decimal/hexadecimal)
Data type allocated by V (B, W, L, F, or A)
Subscript
Subscript i or j can be specified
Required if using subscripts
Name for registers: 8 characters max.
X XXXXXXX
Alphanumeric characters or symbols
English characters or symbols
(Symbol names cannot start with numerals.)
5.3 Registers
5-27