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Chapter 10 Sampling
10-12
Sample Control Memory
Sampling control memory is automatically allocated for a maximum of 3 words following
the read area “n + 3” (specified in the [Comm. Parameter] dialog from the [System
Setting] menu) by checking the [
Use Sample Buffer] option in the [Buffering Area
Setting] dialog. Regardless of the setting for [Memory Designation], sample control
memory is allocated following read area “n + 3.”
R: Reset
When this bit is set (1), data in the specified buffer is cleared and no sampling
occurs. When this bit is reset (0), sampling is started. (This is not so when [Relay
Sample] is selected for [Sampling Method].)
T:
Trigger
This is valid only when [Bit Synchronize] is selected for [Sampling Method]. Data is
sampled from the specified buffer at the edge of [0
→
1].
S: Normal operation bit
This is valid only when [Alarm Function] is selected for [Sampling Method]. This bit
controls the alarm display. When an error bit is reset, this bit is set. When an error
bit is set, this bit is reset. The first error bit that is set while this bit is reset is
recognized as the “first cause” error, and can be distinguished from the other errors.
(
For more information on the alarm function, refer to page 10-62.)
U: Sampling bit/ Start bit
When [
Use Start Bit] is checked other than [Sampling Method: Alarm Function]:
Sampling is started when this bit is set (ON) and is stopped when this bit is reset
(OFF).
[Sampling Method: Alarm Function]
This bit remains set from the start to the end of sampling.
* When this bit is not set, no error message is displayed if the error bit is
set.
* The number of words allocated for the sample control memory depends on
the number of buffers to be used. (Refer to the illustration for [Memory
Designation] on the previous page.)
When [
Use Sample buffer area is not checked, memory addresses from
“n + 3” can be used for other purposes.
* Be sure to reset the bits not in use to “0” in the sample control memory.
MSB
LSB
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
U
S
R
T
U
S
R
T
U
S
R
T
U
S
R
T
sample control memory
= Read area
n + 3
n + 4
n + 5
Buffer No. 3
Buffer No. 7
Buffer No. 11
Buffer No. 2
Buffer No. 6
Buffer No. 10
Buffer No. 1
Buffer No. 5
Buffer No. 9
Buffer No. 0
Buffer No. 4
Buffer No. 8
Содержание Monitouch V Series
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Страница 36: ...System Setting...
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Страница 64: ...Basic Functions...
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Страница 95: ...Chapter 2 Overlap 2 30 Please use this page freely...
Страница 139: ...Chapter 4 Lamp 4 14 Please use this page freely...
Страница 163: ...Chapter 5 Data Display 5 24 Please use this page freely...
Страница 191: ...Chapter 6 Message Display Relay Message 6 28 Please use this page freely...
Страница 427: ...Chapter 13 Macro 13 44 Please use this page freely...
Страница 454: ...Special Functions...
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Страница 507: ...Chapter 18 Video Display V7i Only 18 32 Please use this page freely...
Страница 647: ...Chapter 27 E Mail 27 6 Please use this page freely...
Страница 667: ...Chapter 28 Web Server 28 20 Please use this page freely...
Страница 690: ...Appendix...
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Страница 714: ...Appendix 1 Internal Memory A1 23 A1 System Memory Please use this page freely...
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