User's Manual

Hardware Requirement Specification

(HRS)

Orion Energy Management Doc.No: 61 8003 011

Valid from

Revision

Author(s): Jan Elfstrom Page 14/25

CONFIDENTIAL ©TIMELOX AB

5.2.5.5 There shall be a minimum of 32kByte Flash and 500 byte RAM available

for AAH use

5.2.6 Power supply

5.2.6.1 The TC shall be possible to run on a fixed 12 – 30VAC/DC supply

5.2.6.2 The TC shall have a maximum current consumption of 150mA @24VDC

TBD (not including other modules)

5.2.6.3 The power supply inputs shall be protected against reversed polarity

5.2.6.4 The power supply inputs shall have protection against short circuit (non-

permanent, no change of components)

5.2.7 Firmware

5.2.7.1 The TC firmware (FW) shall be possible to upgrade through the 6-pin

Module Communications Connector using the AAH standard bootloader protocol

5.2.7.2 Test-mode

When the TC is put in test-mode by the service-tool, all outputs shall be disabled. All

output and input-states shall be possible to observe on the test-tool.

5.2.7.3 A callback function called 1/s shall be implemented for AAH use.

5.2.7.4 A control structure shall be developed for accessing and controlling

resources in the TC, including external inputs.

5.2.7.5 The responsibility for the actual implementation of different functionality is

AAH

5.2.8 Parameters - CT

The following parameters in NV memory is to control the TC. These values are to be

filled in by AAH and used by Computime.

5.2.8.1 ActualTemperature – The reported temperature (external sensor or UI

sensor)

5.2.8.2 ManualOverrideBitField – Controls for service purposes

• Fan-on (bit7) – Turn on the fan

• Fan-speed (bit6-5) – Fan speed, 0 - 2

• Heat (bit4) – Turn on heating

• Cool (bit3) – Turn on cooling

• RFU (bit2-0)