=================================================================
                NC-MK2 Relay revision changes
=================================================================

--------------------------------------
Date     : 10 March 2022
Revision : 5D has the following added:
--------------------------------------
- Cooling curve model to cool down at
  the same rate as if the drive was
  running.
- The cooling curve will now cool down
  2 x faster when the drive is standing
  still.
--------------------------------------
Date     : 8 Sept 2020
Revision : 5C has the following added:
--------------------------------------
- Added new Voltage selections.
- Added Modbus/TCP and PROFINET to internal communication
  selection.

Revision : 5A has the following added:
--------------------------------------
- Communicate with the external communication module:

Revision : 3F has the following added:
--------------------------------------
- Added Amps, kVa and kW to output selection
  of 4 to 20mA.
- ESTOP works with portection relay.
  + When the ESTOP is pressed the trip relay
    will go in a trip state.
  + If unauthorized current is set then unathorized
    current will also be active.

Revision : 3E has the following added:
--------------------------------------
- 4 to 20 mA extended features added.
- Voltage above 525V readings corrected.


=================================================================
                NC-MK1 Relay revision changes
=================================================================
1H and higher needs the profibus module to be programmed to revision 2.00.

This can only be done with NewElec aid.

Revision : 2F has the following added:
--------------------------------------
- Device ID and description locking frontend.

Revision : 2E has the following added:
--------------------------------------
- USB and IrDA communication improvement.
- Stop and Interlocks are combined.
- Insulation and Vacuum failure get's locked out when one of 
  the following conditions are met:
  + In service flag is true or,
  + Feedback signal is high or,
  + A start command was given.

Revision : 2D has the following added:
--------------------------------------
- Reading of the RTD module:
  + PT100 and PT1000 will still read as degree C.
  + PTC and NTC will read as Ohms.
- In service has been programmed with a switching threshold:
  + MLC 10% and greater will switch on at 10%.
  + MLC 10% and greater will switch off at 5%.
  + MLC 9% and smaller will switch on at 20%.
  + MLC 9% and smaller will switch off at 15%.

Revision : 2D has the following added:
--------------------------------------
- Current and voltage measurement improved.
- Settings are stored with checksum.
- Settings check is done with relation to the new checksum.

Revision : 2B has the following added:
--------------------------------------
- Corrected Unauthorized current.
- Current level now showing correctly in events and faults.

Revision : 2A has the following added:
--------------------------------------
- Added revision of the VPC stack to the Frontend.
- Added MMI-420 interface to code.

Revision : 1I has the following added:
--------------------------------------
- Fixed up the emergency stop feature. 

Revision : 1H has the following added:
--------------------------------------
- RTD Type.
- 4 to 20 milli amp is mapped via the profibus byte 2 and 3.