Spectrum Controls 140 ACI 051 00sc User Manual

Page 44

Installation Instructions
32-Channel Analog Input Module
Quantum Series 140 AxI 05x 00sc

The module update rate is determined by the number of channels enabled
and the filter frequencies selected. For example, if all 32 channels are
enabled and the filter frequency for all groups is 60 Hz, then the cycle
time for a full set of 32 channels is 32 x 58 msec or 1.856 seconds.

It takes four ladder logic scans of the eight registers to see all 32 chan-
nels. These four scans must be completed at least twice as fast as the
module update time to ensure no data is missed. In the example above
the ladder scan time would need to run at 1.856 sec/8 or 232 msec or
faster to ensure no data is missed.

The following ladder logic shows how to move data from the 8 multi-
plexed input words to a block of 32 output words starting at location
400101 using the autosequence mode. This example file for use only
with Modsoft programming software can be formed on the install disk
shipped with your module. The file is under the A:\Programs
subdirectory. To install:

1. Insert the install disk into drive A:
2. Copy A:\Programs\QAI32_AC.* C:\Modsoft\Programs
3. Select File QAI32_AC under Modsoft to run. The I/O map is as follows:

Rack Slot Module Input Ref

Output Ref

Description

1 03 ACI 051 00 3000001-3000009 4000001-4000001 ACI05100 AN IN 32CH

300009

300001

NCBT

#00011

#00012

#00015

#00016

400101

BLKM

#00008

300009

300001

NCBT

NOBT

#00011

#00012

#00015

#00016

400109

BLKM

#00008

300009

300001

NCBT

NOBT

NCBT

#00011

#00012

#00015

#00016

400117

BLKM

#00008

300009

300001

NCBT

NOBT

#00011

#00012

#00015

#00016

400125

BLKM

#00008