Xy Plot - Omron NB Series Operation Manual

3 Functions of NB-Designer
3-6-7

XY Plot

XY Plot reflects the correlation of two variables visually. If you want to monitor the XY Plot
reflecting the changes of address values, the NB Unit can clearly displayed it out only by using this
component.
It is assumed that there are M channels, and N XY Plot components for the sampling points per page,
and the corresponding registers in PLC is M×N×2, as shown below.
X11, Y11, X12, Y12, ..., X1N, Y1N, ..., XM1, YM1, ..., XMN, YMN
Note For "Xij, Yij", subscript "i" represents the channel number, "j" represents the sampling point, and "Xij"
represents the coordinate value of sampling point "j" in channel "i".
Process of adding one XY Plot component
1
Press the XY Plot component icon, drag it to the window, then the [Basic Attributes] dialog box
of XY Plot component will pop up.
Read Address: Specifies the word address of PLC corresponding to the data of X-axis trajectory,
Address: Refers to the first address of the word address corresponding to XY Plot.
Code Type: Includes BIN or BCD.
Word Length: It is determined by the channel number, sampling points and the type of current
3-98
and the word address corresponding to Y-axis is "read address + 1". If the channel
number is greater than 1, the addresses corresponding to the 2nd channel are as
follows: "read address +2 × sampling points" for X-axis and "read address + 2 ×
sampling point +1" for Y-axis and so on.
address of [XY Plot], and can't be changed by the user.
NB-series Programmable Terminals NB-Designer Operation Manual(V106)