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45
Rev. C | 2022.02
FCS - Operation Manual
9 ANALOG INPUT AND ANALOG OUTPUT SETTINGS
The FCS can be configured to accept analog inputs from transmitters and connect internally
or remotely to analog output devices such as 4-20 mA fans, heaters, Modbus® VFDs, etc.
Each analog input can be assigned to one or more channels, providing the gas concentration
(for example) for the channel. For more infromation on assigning priorities, refer Section 12.1
Assign Priority Levels to Channels.
The summary information for the analog inputs and/or outputs will be displayed on the third
coloured bar on the home screen display.
9.1 Enable / Disable Analog Inputs, Assign Modbus® ID & Channel
Number and Type
These settings allow you to enable or disable each analog input, specify the Modbus® ID
number, and associated analog input channel number. Using these settings, the FCS can
obtain readings from any analog input device such as CETCI’s 4-20 mA analog transmitters
that may be connected to the internal -AI Option(s) and/or the LNK-AI peripheral device(s)
and associated analog input channels.
Press Menu and enter passcode “3032” to enter the Config Analog IO menu. Select Analog
Input Hardware.
If you want to review the current settings for other analog inputs, press the + or - buttons. To
skip ahead by 10 devices at a time, press the +10 button. Or press the yellow field and use
the keypad to enter a specific number.
Use the + or - buttons or press the yellow fields and use the keypad to change the values for
each analog input. You can select:
A. Input:
Choose the analog input number/channel that you want to configure. The
FCS can have a total of 60 analog inputs (internal and remote combined), therefore this
number will be 1 to 60. The FCS-8 can have a total of 8 analog inputs, therefore this
number will be 1 to 8.
Modbus ID:
Set the Modbus® ID for the analog input device. For an internal -AI Option
choose 1 (if the AI board is installed in the top position) or 2 (if the AI board is installed in
the bottom position). For an LNK-AI peripheral device, choose a number from 50 to 74.