14-10 VersaMax® Modules, Power Supplies, and Carriers User's Manual – March 2003 GFK-1504K
14
IC200ALG630
Analog Input, 16 Bit Thermocouple, 7 Channels
The Thermocouple Analog Input Module (IC200ALG630) is an intelligent module that
accepts 7 independent thermocouple or millivolt inputs.
1234567 831
IND CONT EQ FOR HAZ LOC
CLASS I DIV 2 GROUPS ABCD
Temp Code T4A Ambient 60C
CLASS I ZONE 2 GROUP IIC T4
Ex nA IIC T4 0C
≤
To
≤
60C
Ex nV II T4 Demko No. 98Y.125014
IC200ALG630
ANALOG INPUT 16BIT
THERMOCOUPLE 7CH
OK
The module receives power from the backplane power supply. No external power source is
required.
Each input channel can be configured to report millivolts ranges as 1/100 of millivolts, or
thermocouple inputs as linearized temperature in tenths of degrees Celsius or Fahrenheit,
with or without cold junction compensation.
LED Indicators
The green FLD PWR LED indicates the presence of both backplane power and field
power for the analog field-side circuits. The absence of either backplane or field power
turns off the FLD PWR LED.
The OK LED indicates module status:
On green indicates normal operation
Flashing green indicates boot mode or update
Flashing amber indicates self-diagnostic error
Off indicates no 3.3V backplane power
Diagnostics
The module reports over/under range, open thermocouple, non-volatile memory storage,
high/low alarm and thermistor error diagnostics to the I/O Fault Table.
Calibration
The module automatically performs A/D calibration at powerup. Automatic calibration is
then repeated periodically to compensate for changes in the ambient temperature.
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