Dm Area Settings - Omron SYSMAC C200H-CT001-V1 Operation Manual

Linear and Circular Modes
4-2-2

DM Area Settings

Operating Mode
Effective Range Bits
Maximum Counter Value
(Circular Mode Only)
Range Settings
Lower Limit
Upper Limit
Output Pattern
DM word m, bits 11 through 08
The operating mode is set with the mode selector on the front panel. Refer to 1-4
Operating Modes for an overview of available modes.
DM word m+1
Bit numbers correspond to range numbers, i.e., but 0 corresponds to range #0;
bit 1, to range #1, etc. Range data is allocated to words m+10 through m+89.
Turn ON (set to 1) the bits for all ranges that are to be effective. These bits are
effective immediately after the power supply is turned ON or the Counter Unit is
restarted. The effective ranges can also be changed using CHANGE RANGES.
Refer to 4-3-3 IR Area Settings for details.
DM word m+2 and m+3
Set to between 0 and 65,535.
The counter value will return to zero when incremented past this value and re-
turn to this value when decremented below zero.
Words m+10 through m+89
Each of the 16 ranges is allocated 5 consecutive words for its lower limit, upper
limit, and output pattern. Refer to 4-3-1 Data Allocation for the specific words for
each range; the following allocations are for range #0. In circular mode, a range
will span zero if the lower limit is greater than the upper limit. Ranges may over-
lap, in which case all outputs specified for each are set. Set all data for unused
ranges to zeros.
Words m+10 and m+11 (Range #0)
The lower limit must be within the limits of the counter value, i.e., between 0 and
the maximum counter value in circular mode and between –8,388,608 and
8,388,607 in linear mode. Bits 15 through 12 of DM word m+11 (leftmost digit in
higher word) is the sign digit (not used in circular mode).
Words m+12 and m+13 (Range #0)
The upper limit must also be within the limits of the counter value, i.e., between 0
and the maximum counter value in circular mode and between –8,388,608 and
8,388,607 in linear mode. Bits 15 through 12 of DM word m+13 (leftmost digit in
higher word) is the sign digit (not used in circular mode).
DM word m+14 (Range #0)
Each bit corresponds to the output of the same number. Each output whose bit is
ON will be turned ON (set to 1) when the counter value is within range. An output
may not be activated, however, if the range is too narrow in comparison to the
frequency of the pulse input. All outputs are sent to the IR area word n+9. Out-
puts #0 through #7 are also sent to outputs 0 through 7 of the external connector
when bit 02 of word n is ON.
Section 4-2
39