6-2SectionDetails
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For details on using these instructions, refer to the individual explanations in the
Customizable Counter Units Programming Manual (W378).
6-2-7 DM Area
This area is used in word units. The DM Area is contained in I/O memory (i.e.,
areas that can be freely read and written from the ladder program) and areas to
which functions are allocated.
The words in this area do not have any special functions and can be used as
required in programming. They can be read and written to using instructions or a
Programming Device.
Area type Addresses
Instructions Programming Device
Reading Writing Reading Writing
Read/write portion of DM Area
(for general-purpose data)
DM 0000
to
DM 6143
OK OK OK OK
Other Parts of DM Area
Error Log Area
When a fatal or non-fatal error occurs in the Customizable Counter Unit, the
Special I/O Unit error code and the error contents are stored automatically in this
area along with the time and date at which the error occurred.
Area Addresses
Instructions Programming Device
Reading Writing Reading Writing
Error Log Area DM 6144 to
DM 6199
OK NO OK OK
The contents of one record are shown below:
Special I/O Unit error code
Details 1 Details 2
Minutes
Day
Year
Seconds
Hours
Month
15 00 07 00
Error contents: If the Special I/O Unit error code is 0360 Hex, the Customizable
Counter Unit’s error code is stored in bits 00 to 07.
Read-only Words in DM Area
Reading is possible for these words using instructions, but writing is not pos-
sible. Using a Programming Device, both reading and writing are possible. Use
this area for storing data that must not be changed.
Area Addresses
Instructions Programming Device
Reading Writing Reading Writing
Read-only portion of DM Area (for
general-purpose data)
DM 6200
to
DM 6599
OK NO OK OK (See note.)
Note Writing is not possible when bits 00 to 03 in DM 6600 are set to 1 Hex (writing to
user memory disabled).
Unit Setup Area
This area is used for making settings for the Customizable Counter Unit’s func-
tions.
Area Address
Instructions Programming Device
Reading Writing Reading Writing
Unit Setup Area DM 6600 to DM 6655 OK NO OK OK (See note.)
Read/Write Words in
DM Area
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