Installation instructions – Spectrum Controls 140 ACI 052 00sc User Manual
Page 40

3x+0 . . . 7 Under Range Flag: Bit 4
This is a nonfatal under range flag. The bit is set to 1 when an input value
is read within one count of the minimum range value. When the input value
is within normal limits the flag is automatically reset to 0.
3x+0 . . . 7 Range & Mode Selection: Bit 5-7
These three bits confirm which range and mode selection was set in the
zoom screen for each group of eight inputs. See 4x register set-up. Range
select works in conjunctions with the mode select.
Range & Mode Selection Bits
Bit 5
Bit 6
Bit 7
Mode
Range
0
0
0
Voltage
±10 V
0
0
1
Voltage
+1 to +5V
0
1
0
Voltage
0 to +5V
0
1
1
Voltage
0 to +10V
1
0
0
Current
0-20 mA
1
0
1
Current
4-20 mA
1
1
0
Current
Not used
1
1
1
Current
Not used
3x+0 . . . 7 Input Data Format: Bits 8-9
These two bits indicate the data format selection that was set in the zoom screen.
One of three input data formats is selected for each of the four groups.
Input Data Format Selection Bits
Bit 8
Bit 9
Data Format
0
0
16 bit unsigned integer
0
1
10,000 Count DVM
1
0
12 bit unsigned integer
1
1
15 bit signed integer
3x+0 . . . 7 Filter Selection: Bits 10-11
These two bits indicate the filter frequency selection that was set in the zoom
screen. One of four filter selections from 10 Hz, 50 Hz, 60 Hz, 1000 Hz is
programmed per group of eight inputs. The filter frequency selection will effect
channel update time.
Installation Instructions
32-Channel Analog Input Module
Quantum Series 140 ACI 052 00sc
34