GFK-1504N Chapter 10 Analog Input Modules 10-17
IC200ALG260
Analog Input Module, 12 Bit Voltage/Current 8 Channels
Analog input module IC200ALG260 provides an interface to 8 voltage inputs or
8 current inputs. The inputs are single-ended, with all inputs sharing a common
return.
ANALOG INPUT 12BIT
VOLT/CURR 8CH
The module receives power from the backplane power supply. No external
power source is required for module operation. Power for the user’s
transceivers must be supplied from an external source.
Intelligent processing for this module is performed by the CPU or NIU. The
module provides 8 words of analog input data.
LED Indicators
The green INT PWR LED indicates the presence of internally-generated field
power for the analog field-side circuits. The green OK LED is ON when
backplane power is present to the module.
Diagnostics
The module reports a Loss of Internal Power fault for field-side circuits.
Configuration Parameters
Two jumpers on the carrier terminals can be used to configure voltage or
current mode and unipolar or bipolar operation in voltage mode. One jumper
selects either voltage or current operating mode. With this jumper connected,
the module accepts current inputs in the 4mA to 20mA range. With no jumper
installed the module accepts –10 V DC to +10 V DC inputs.
In voltage mode, a different jumper on the carrier can be used to select the 0 to
10 V DC range.
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