Analog I/O PLC (CM3-SB32) Parameters

Analog I/O

• The Analog I/O parameter is used on PLC CPUs that support embedded analog input and output.
  • CM3-SB32MDTF
  • CM3-SB32MDCF
  • CM3-SB32MDRF
• The Analog I/O PLC parameter contains the following sections:
  • Device Setting
  • Analog Input Channel 1 & Channel 2
  • Analog Output Channel 1 & Channel 2
• For more information on how to use analog input/output on an embedded PLC CPU, refer here.

Device Setting

• Data Register:
  • This is the data register type for analog input/output.
    • The options are:
      • D
      • M
      • L
      • K
• Number:
  • This is the starting data register number for analog input/output.

Analog Input Channel 1 & Channel 2

• Enable/Disable:
  • Enables or disables analog input for channel 1 or channel 2.
• Input:
  • Specifies the analog input type:
    • Voltage:
      • 0V ~ +5V
      • 0V ~ +10V
      • +1V ~ +5V
      • +1V ~ +10V
    • Current:
      • 0mA ~ 20mA
      • 4mA ~ 20mA
• Average Count:
  • Used for enabling the moving window filtering feature.
  • The value range is 0 ~ 255.
    • 0 disables the moving window filtering feature.
• AD Filter Coeff(%):
  • This sets the AD filter coefficient percentage.
• AD Max Digit:
  • This is the maximum digital value from the analog input.
  • The values are 4,000 or 16,000(SW).
    • 16,000 requires the DIP Switch to be enabled.

Analog Output Channel 1 & Channel 2

• Enable/Disable:
  • Enables or disables analog output for channel 1 or channel 2.
• Stop Mode:
  • Determines if the analog value is maintained or cleared when the PLC is in STOP mode.
  • The options are:
    • Hold: maintain the value
    • Clear: clear the value
• Output:
  • Specifies the analog output type:
    • Voltage:
      • 0V ~ +10V
    • Current:
      • 4mA ~ 20mA
• DA Max Digit:
  • This is the maximum digital value from the analog output.
  • The values are 4,000 or 16,000(SW).
    • 16,000 requires the DIP Switch to be enabled.