ISPSoft User Manual

Chapter 3 Configuring and Setting a PLC System
(3) Since the latched devices in a PLC may not be consecutive devices, the users have to select a
block before they set a range of latched device.
(4) There is a rectangular bar in the setting area. The values at the two ends of the bar represent a
maximal value and a minimal value. The orange part represents a range of latched devices. If
the setting area is gray, users can not set a range of latched devices in the block for the model
selected.
Please select values in the boxes. The value in the left box is a start address, and the value in
the right box is an end address. The value in the left box must be less than the value in the
right box. Besides, the value in the left box can not be less than the minimal value at the left
end of the rectangular bar, and the value in the right box can not be larger than the maximal
value at the right end of the rectangular bar.
(5) If all the devices in the block are not latched devices, the users can click Clear. After the users
click Clear, the range of latched devices will be -1~-1.
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