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

Page 40

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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

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