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3. Modify Offsets
- Adjust the offset for each input zone. The offsets
are used to improve accuracy of the readings. This could be useful if a
2-wire RTD is used or a particular value is crucial in a process. The offset
can be used so that less error is present. The units for the offset are
Tenths. So, if the reading is off by -1 degree (or 1 unit in any other
measurement), the number that should be entered for the offset value
is 10, because this will raise the value by 10 tenths or +1 degree.
4. Comm Settings
– This selection steps through setting the monitor
address and the baud rate for the serial communications. The settings
chosen must match the settings selected by the master device that will
be communicating with the CX224. The first screen requests the user to
enter the Modbus address. The valid range of addresses is from 1 to
247. If 0 is selected, the CX224 will not monitor the communication
lines. Each CX224 is factory set to a default Modbus address of 1. If
communications are not used, it is acceptable to leave the default
address at 1. If multiple CX224 are to be used, the addresses should be
changed to prevent communication errors. The next screen will request
setting the baud rate. Valid baud rates are: 600, 1200, 2400, 4800, 9600,
and 19200.
3. Manual Reset
- Use this option to reset the outputs if a trip has occurred and
Manual Reset Only was selected when configuring the outputs. (May be password
protected.)
4. Options
– Options Menu allows the user to personalize the zone
names and exercise the relays.
1.
Rename Zones
2.
Exercise Relays
3.
Freeze Outputs
1. Rename Zones
– This option is used to personalize the display. Up to
16 characters can be entered to describe the input location. Capital
letters (A-Z), numbers (0-9), and spaces are allowed.
2. Exercise Relays
– This option can be used to trip the outputs for test
purposes. This can be helpful to verify that wiring is correct and that
connections are secure. When selected and relays are in tripped
condition, the unit will keep the outputs tripped until another key is
pressed.
3. Freeze Outputs –
Selecting this option will disable the program from
changing the state of any output. The message “Outputs are Frozen” is
displayed on the screen when this selection is active and the CX224 is in
Monitor Mode. To unfreeze the outputs, choose this option again and
the Freeze Outputs option will be disabled.
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