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Chapter 1: Getting Started
Questions and Answers about DL05 Micro PLCs
Q. What is the instruction set like?
A. The instruction set is very close to our popular DL240 CPU. However, there are significant
additions, such as the drum instruction, networking, PID control and High-Speed I/O
capabilities.
Q. Do I have to buy the full DirectSOFT programming package to program the
DL05?
A. No, DirectSOFT programming software is available for programming DirectLOGIC PLCs
for no additional charge; however this FREE version will only allow 100 maximum words
to be programmed. Go to AutomationDirect.com for more information.
Q. Is the DL05 expandable?
A. No, the DL05 series are stand-alone PLCs with one slot for the installation of an available
option module. They do not have expansion bases, such as our DL205 system which has
expansion bases, yet are very compact and affordable.
Q. Does the DL05 have motion control capability?
A. Yes. The units with DC I/O have selectable high-speed input features on three inputs. There
is also an optional High-Speed Counter I/O module available with special utility software.
Either can accept pulse-type input signals for high-speed counting or timing applications and
provide high-speed pulse-type output signals for stepper/servo motor control, monitoring,
alarm or other discrete control functions. Three types of motion profiles are available, which
are explained in Chapter 3.
Q. Are the ladder programs stored in a removable EEPROM?
A. The DL05 contains a non-removable FLASH memory for program storage, which may be
written and erased thousands of times. You may transfer programs to/from the DL05 using
DirectSOFT on a PC, or the HPP (which does support a removable EEPROM). There is an
optional CMOS RAM memory cartridge (MC) available (See Chapter 10).
Q. Does the DL05 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 DL05 Micro PLC UL approved?
A. The Micro PLC has met the requirements of UL (Underwriters' Laboratories, Inc.), and
CUL (Canadian Underwriters' Laboratories, Inc.).
Q. Does the DL05 Micro PLC comply with European Union (EU) Directives?
A. The Micro PLC has met the requirements of the European Union Directives (CE).
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DL05 Micro PLC User Manual, 6th Edition, Rev. E