18
MOV K21 DY0
M0
MOV K3 D0
M1
MOV DX2[D0] D10
SM0
When M0 changes from OFF to ON, the value in the word which is combined by Y0~Y17
equals to 21, i.e. Y0, Y2, Y4 become ON.
Before M1 activates, if D0=0, DX2[D0] represents a word combined by X2~X21.
If M1 changes from OFF to ON, D0=3, then DX2[D0] represents a word combined by
X5~X24.
2-2-2 Structure of Bit Soft Components
Bit soft components include X, Y, M, S, T, C, HM, HS, HT, HC. Besides, the bit of the
register also can be used as bit sofst component.
Input Relay X, octal form
Output Relay Y, octal form
Auxiliary Relay M, HM, S, HS; decimal form
Auxiliary Relay T, HT, C, HC, decimal form. The represent method is same to registers, so
we need to judge if it’s word register or bit register according to the instruction.
Composed by bit of register, support register D
Represent method: Dn.m (0≤m≤15): for example D10.2 means the second bit of D10
The represent method of bit with offset: Dn[Dm].x
Bit of register can’t compose to word soft component again;
E.g.:
D0.4 means when the fourth bit of D0 is 1, set Y0 ON.
D5[D1].4 means bit addressing with offset, if D1=5, then D5[D1] means the fourth bit of D10
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