Spectrum Controls 140 ACI 051 00sc - Manual (Page 43)

Installation Instructions
32-Channel Analog Input Module
Quantum Series 140 AxI 05x 00sc
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6.2 Demultiplexing Channel Data - Autosequence Mode
The autosequence mode of operation is intended to simplify the
demultiplexing of channel data from the eight input registers into storage
for the 32 channels. The Autosequence Mode is enabled under the
following conditions:
• Input Mode = Data Mode (Configuration Word Bits 11 & 12 = 0)
• Autosequence Disable is not active (Configuration Word Bit 10 = 0)
In the autosequence mode, the group select bits in the configuration word
are ignored. Instead, the module samples channel data in groups of eight
(8), presents the data to the PLC and then scans the next group automati-
cally.
Channels 1-8
3x+0 to 3x+7
M odule Status
3x+8
M odule Status
3x+8
Channels 9-16
3x+0 to 3x+7
M odule Status
3x+8
Channels 17-24
3x+0 to 3x+7
M odule Status
3x+8
C hannels 25-32
3x+0 to 3x+7
Scan