Product Specification
Brand/Manufacturer | GE/USA |
Part Number | IC660CBB902K |
Alternate Part Number | IC660CBB902K |
Description | Industrial Control System |
Dimennsions | 3.4*13*11cm |
Weight | 0.24kg |
Product Details
The 4-Channel Analog Current Input module for the Series 90-30
Programmable Logic Controller provides four input channels, each capable
of converting an analog input signal to a digital signal for use as required by
your application. This module provides two input ranges.The default range
is 4 to 20 mA with user data scaled so that 4 mA corresponds to a count of 0
and 20 mA corresponds to a count of 32000 with each 1000 counts
representing 0.5 mA. When a jumper is added to the I/O terminal board,
the input range is changed to 0 to 20 mA with user data scaled so that 0mA
corresponds to a count of 0 and 20 mA corresponds to a count of 32000 with
each 800 counts representing 0.5 mA. Two range jumpers are provided with
the module; one for channels one and two, and the other for channels three
and four.
Conversion speed for each of the four channels is one-half millisecond. This
provides an update rate of two milliseconds for any channel. Resolution of the
converted signal is 12 bits binary (1 part in 4096) over either range. User data
in the %AI registers is in 16-bit 2’s complement format. The placement of the
12 bits from the A/D converter in the %AI data word is shown below. The
relationship between the current input and the data from the A/D converter is
shown in Figures 3-14 and 3-15.
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