Publication 1756-UM001A-EN-P - September 2000
C-8
Estimate Memory Use
Array Indexes
Memory use for an instruction increases for each parameter that
references an array. Keep in mind these considerations:
•
When an array uses immediate values for the index, there is no
additional memory added.
For example:
•
When an array uses a tag (type DINT) as an index, additional
memory is used, depending on the number of dimensions in
the array.
For example:
RLIM
Rate Limiter
184
RMPS
Ramp/Soak
324
RTOR
Retentive Timer On with Reset
196
SCL
Scale
168
SCRV
S-Curve
172
SEL
Select
192
SETD
Set Dominant
184
SNEG
Selected Negate
188
SOC
Second-Order Controller
164
SRTP
Split Range Time Proportional
168
SSUM
Selected Summer
204
TOFR
Timer Off Delay with Reset
196
TONR
Timer On Delay with Reset
200
TOT
Totalizer
264
UPDN
Up/Down Accumulator
176
Table C.4 Memory Size of Function Block Instructions (Continued)
Mnemonic:
Title:
Memory (bytes):
Example:
Additional Memory Used:
myTag[0]
none
myTag[0,0,0]
none
Example:
Additional Memory Used:
myTag[offset]
84 bytes
myTag[0,offset,0]
152 bytes
Содержание Allen-Bradley ControlLogix 1756-L Series
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Страница 64: ...Publication 1756 UM001A EN P September 2000 4 16 Communicate with 1756 I O Notes ...
Страница 90: ...Publication 1756 UM001A EN P September 2000 6 16 Communicate with 1794 I O Over a ControlNet Network Notes ...
Страница 108: ...Publication 1756 UM001A EN P September 2000 7 18 Communicate with Another Controller over a ControlNet Network Notes ...
Страница 112: ...Publication 1756 UM001A EN P September 2000 8 4 Route PLC 5 Messages Between ControlNet Networks Notes ...
Страница 119: ...Publication 1756 UM001A EN P September 2000 Communicate with a PanelView Terminal Over a ControlNet Network 9 7 ...
Страница 152: ...Publication 1756 UM001A EN P September 2000 11 4 Monitor Connections Notes ...
Страница 160: ...Publication 1756 UM001A EN P September 2000 12 8 Communicate with a DeviceNet Device Notes ...
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Страница 232: ...Publication 1756 UM001A EN P September 2000 18 18 Configure DF1 Master and Slave Communications Notes ...
Страница 266: ...Publication 1756 UM001A EN P September 2000 21 10 Maintain the Battery Notes ...
Страница 286: ...Publication 1756 UM001A EN P September 2000 B 18 Estimate Execution Time Notes ...
Страница 300: ...Publication 1756 UM001A EN P September 2000 C 14 Estimate Memory Use Notes ...
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