
Appendix E
DL305 Memory Map
E–5
DL305 Data Types and Memory Map
DL330 Memory Map
Memory Type Discrete Memory
Reference
(octal)
Register Memory
Reference
(octal)
Qty.
Decimal
Symbol
Input / Output
Points
000 – 157
700 – 767
R000 – R015
R070 – R076
168 Total
Control Relays 160 – 373 R016 – R037 140
Special Relays 374 – 377
770 – 777
R037
R077
12
Timers /
Counters
600 – 673
674 – 677*
None 64
Timer / Counter
Current Values
None R600 – R673
R674 – R677*
64
Timer / Counter
Status Bits
T600 – T673
T674 – T677*
None 64
Data Words None R400 – R563 116 None specific, used with many
instructions
Shift Registers 400 – 577 None 128
Special
Registers
None R574 – R577 4 R574 – R575 used with FAULT
R576 – R577 Auxiliary Accumulator
* T/ C Setpoint Unit Only. Can be used as data registers if the Timer/Counter Setpoint Unit or Thumbwheel Interface Module is not used. R564 – R573 contain the preset value used with the Timer /
Counter Setpoint Unit. R674 – R677 contain the current values for these timers or counters.
000
010
C0C0
772
376
TMR T600
K100
CNT C600
K10
R600 K100
T600
SR
400
417
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