MODEL: R1M-A1
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INPUT REGISTERS DESCRIPTION
(1) ANALOG INPUT IN % (30001 to 30016; 30001 to 30008 for J3)
Indicates analog input values in percentage for each channel (1 – 16; 1 – 8 for J3).
(2) ANALOG INPUT IN ENGINEERING UNIT (30017 to 30048; 30017 to 30032 for J3)
Indicates analog input values in engineering unit for each channel (1 – 16; 1 – 8 for J3). The unit is specific to each input type: °C
for temperature, Volts for voltage, and % for potentiometer. The data are 32-bit floating values, which requires two consecutive
registers for one module.
(3) CHANNEL STATUS (30081 to 30096)
Indicates the current status of analog inputs (1 – 16; 1 – 8 for J3). The following list shows the names and descriptions of each bit.
INPUT TYPE & RANGE
A/D DATA (Decimal)
DC
±20V
±20000
±5V
±5000
±1V
±10000
±0.8V
±8000
±0.2V
±20000
±50mV
±5000
±10mV
±10000
Thermocouple
Temperature x 10
RTD
Temperature x 10
Potentiometer
0 – 100Ω
±2000
0 – 500Ω
0 – 1kΩ
0 – 10kΩ
BIT
NAME
DESCRIPTION
6
Input Overrange
Indicates the designated analog input is in overrange, defined as one or
more of the following condition:
• ADC input value 0X0000 or 0XFFFF
• Burnout status for thermocouple input
• Out of range defined in the temperature table (thermocouple and RTD)
• ADC error
0 : Normal
1 : Overrange
7
ADC Error
Indicates the status of ADC.
0 : Normal
1 : Error
12
Cold Junction Compensation SW
Indicates whether the cold junction compensation is enabled or disabled, for
thermocouple input.
0 : Disable
1 : Enable
Others
Reserved
For system’s use
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