Getting Started
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Getting Started
DL105 PLC User Manual, 3rd Edition
Questions and Answers about DL105 Micro PLCs
Q. What is the instruction set like?
A. The instruction set is very close to our popular DL230 CPU. However, there are
significant additions, such as the drum instruction and High-Speed I/O capability.
Q. Do I have to buy the full DirectSOFT5 programming package to program the DL105?
A. No, DirectSOFT100R can be used. It has the same features as the full version of
DirectSOFT5 but allows only 100 words of ladder code that can be downloaded to
the PLC. It will also program DL05/06/205/305/405 systems, and it is only available
for download online. (Order programming cable separately.) 32--bit application,
Windows 2000 or Windows XP (Pro or Home) recommended. This software is
available at no cost to you.
Q. Is the DL105 networkable or expandable?
A. No, the DL130 series is stand-alone PLCs. However, our DL205 system is
expandable and networkable (with DL240 CPU), yet very compact and affordable.
Q. Does the DL105 have motion control capability?
A. Yes. The High -Speed I/O features offer either encoder inputs with high-speed
counting and presets with interrupt, or a pulse/direction output for stepper control.
Three types of motion profiles are available, which are explained in Chapter 3.
Q. Are the ladder programs stored in a removable EPROM?
A. The DL105 contains a non-removable EEPROM for program storage, which may
be written and erased thousands of times. You may transfer programs to/from
DirectSOFT on a PC, or the HPP (which does support a removable EEPROM).
Q. Does the DL105 contain fuses for its outputs?
A. There are no output circuit fuses. Therefore, we recommend fusing each channel,
or fusing each common. See Chapter 2 for I/O wiring guidelines.
Q. Is the DL105 Micro PLC U.L.R approved?
A. The Micro PLC has met the requirements of UL (Underwriters’ Laboratories, Inc.)
and CUL (Canadian Underwriters’ Laboratories, Inc.).
Q. Can the DL105 accept 5VDC inputs?
A. No, 5 volts is lower than the DC input ON threshold. However, many TTL logic
circuits can drive the inputs if they are wired as open collector (sinking) inputs. See
Chapter 2 for I/O wiring guidelines.
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