Protege System Controller Reference Manual

Analog Expander Channel 1 Options
The channel one options configures the first channel on the Analog Expander. Please not that the settings may
not relate to the particular device connected. Some options relate to the PRT-DAC4 Analog Output Expander
and others to PRT-ADC4 Analog Input Expander.
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The channel options require a module init or module init with reboot to take affect with the exception
of the Log Channel Data Option 7, which is a controller based configuration setting.
AE001 Ch 1 Opts
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To modify options, use the keypad as explained in section Entering Data Options (see page 344).
Option 1 – Enable Channel Operation
• Enabled the analog expansion device will process messages according to the options configuration and
module type.
• Disabled the channel will perform no function.
Option 2 – Channel Input Output Configuration
• When the option is enabled the input or output will operate in Current Mode and use the 0-20mA and
4-20mA interface.
• Disabled the channel will operate in 0-10V input or output mode.
Option 3 – Preset PRT-DAC4 Output on Power Up
• Enabled and the analog expansion module is a DAC module the output will be preset when it powers up to
the setting in option 4.
• Disabled the DAC output will be set to the last known value that it received.
Option 4 – Set to Full Scale Output
• Enabled and option 3 enabled the DAC output will be set to the maximum or full scale deflection.
• Disabled and option 3 enabled the DAC will output a analog value of 0 on the voltage or current outputs.
Option 5 – Reserved
• Reserved do not modify
Option 6 – Differentiate On Send Operation
• Enabled the Analog Input channel will constantly monitor the analog input value for any variance greater
than the configured differentiate value set for the channel and then send an update to the system controller.
• Disabled the Input Channel will be sent based on the period configured in the channel time setting.
Option 7 – Log Raw Analog Data
• Enabled the Analog Expander channels when updated either as an input or an output will trigger a log in the
event screen with the exact raw value. This is ideal for fault finding HOWEVER should not be left on in a live
system as it will fill the event review rapidly.
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To log data from a channel for charting and display purposes utilize the log option for variables in the
Protege System Management Suite.
• Disabled the data is not logged to the review screen.
Option 8 - Reserved
• Reserved do not modify
Enabling/disabling or modifying the settings of reserved options is not recommended.
88 PRT-CTRL-SE Protege System Controller Reference Manual | PRT-CTRL-SE