Zoom register layout – Spectrum Controls 140 MPM 204 00sc User Manual
Page 29
Meter Proving Module
31
Zoom Register Layout
Zoom Register Layout
Zoom Register Layout
Zoom Register Layout
Zoom Register Layout
The following table shows the layout for each of the zoom registers.
T
T
T
T
Table 3-2 Bit Settings for
able 3-2 Bit Settings for
able 3-2 Bit Settings for
able 3-2 Bit Settings for
able 3-2 Bit Settings for Zoom Registers
Zoom Registers
Zoom Registers
Zoom Registers
Zoom Registers
Function
Function
Function
Function
Function
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
10
10
10
10
10
1
1
1
1
11
1
1
1
1 12
12
12
12
12 13
13
13
13
13 14
14
14
14
14
15
15
15
15
15 16
16
16
16
16
Input Range*
5V **
0
0
12V
0
1
24V
1
0
AC
1
1
Gate Range*
5V **
0
0
12V
0
1
24V
1
0
AC
1
1
30kHz filter
Disabled **
0
Enabled
1
15 kHz filter
Disabled **
0
Enabled
1
Count size
65K
0
16M**
1
Unused
X
X
X
X
X
X
X
X
X
* Channel Pairs (1-2, 3-4) must be configured the same to operate properly.
** Default Settings
Input Range, Bits 15 and 16
Input Range, Bits 15 and 16
Input Range, Bits 15 and 16
Input Range, Bits 15 and 16
Input Range, Bits 15 and 16
These bits select one of the four available input ranges: 5V, 12V, 24V and AC. Select the
range that is closest to the maximum amplitude of your device signal. For example: If your flow
meter has a peak signal amplitude of 20 volts, select the 24V input range. Each range selection
determines the counter trip level. Matching the input range to your signal amplitude will miximize
false counting.
NOTE: Allow at least one scan time for input range information to be updated at the PLC.
NOTE: Channel pairs (1-2, 3-4) must be configured with identical input ranges to function properly.
Gate Range, Bits 13 and 14
Gate Range, Bits 13 and 14
Gate Range, Bits 13 and 14
Gate Range, Bits 13 and 14
Gate Range, Bits 13 and 14
This group of 2 bits selects one of 4 input ranges for the gate inputs. Each range is selected for
a given system voltage level. Each range has its own counter trip level.
30 kHz Filter
30 kHz Filter
30 kHz Filter
30 kHz Filter
30 kHz Filter, Bit 12
, Bit 12
, Bit 12
, Bit 12
, Bit 12
The 30 kHz filter is recommended for counter or flow meter applications running at speeds less
than 25 kHz. Set this bit to 0 when running to speeds of 50 kHz. Setting this bit to 1 filters input
noise above 30 kHz.
15 kHz Filter
15 kHz Filter
15 kHz Filter
15 kHz Filter
15 kHz Filter, Bit 1
, Bit 1
, Bit 1
, Bit 1
, Bit 11
1
1
1
1
The 15 kHz filter is recommended for counter or flow meter applications running at speeds less
than 15 kHz. Set this bit to 0 when running to speeds above 15 kHz. Setting this bit to 1 filters input
noise above 15 kHz.