Installation instructions – Spectrum Controls 140 ACI 052 00sc User Manual
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The register data formats are discussed in the following section.
4x
Configuration Word
3x + 0
Data Input Word 1
4x+1
*Time of Day Clock Control Word
3x + 1
Data Input Word 2
4x+2
Day of Week (Sun+1 Mon+2 etc.)
3x + 2
Data Input Word 3
4x+3
Month (1-12)
3x + 3
Data Input Word 4
4x+4
Day of Month (1-31)
3x + 4
Data Input Word 5
4x+5
Year (00-99)
3x + 5
Data Input Word 6
4x+6
Hour (00-23)
3x + 6
Data Input Word 7
4x+7
Min (00-59)
3x + 7
Data Input Word 8
4x+8
Sec (00-59)
3x + 8
Status Word
*Bit 2 of Time of day clock control word must be set or the PLC will not read clock values
definitions specified. Write either a 4000hex or 6000hex into the first location allocated for
the PLC time of day clock. Refer to the MODSOFT programming manual for more information
on the time of day clock usage.
☞ Note: The PLC time of day clock is read once at power up from registers 4x+1 through 4x+8.
The modules internal clock chip is synchronized with the PLC clock at this time. After
power up, the module clock is synchronized with the PLC clock at least once a day.
(See Section 4.2 for more details.)
The ACI 052 00sc multiplexes 32 channels of data into four groups of eight
channels. Each group can be selected through the 4x Configuration Word
or can automatically sequence through all four groups channels.
Group 1
Chn 1-8
3x + 0
Data Input Word 1
3x + 1
Data Input Word 2
Group 2
Chn 9-16
3x + 2
Data Input Word 3
3x + 3
Data Input Word 4
Group 3
Chn 17-24
3x + 4
Data Input Word 5
3x + 5
Data Input Word 6
Group 4
Chn 25-32
3x + 6
Data Input Word 7
3x + 7
Data Input Word 8
15
Installation Instructions
32-Channel Analog Input Module
Quantum Series 140 ACI 052 00sc