TE Technology TC-720 - Manual (Page 81)

29. SOFTWARE REVISION
Write Command: NA
Read Command: 05
Interpret: Returns revision level of software
30. SET TEMPERATURE READ
Write Command: NA
Read Command: 06
Interpret: Convert the returned hexadecimal value to decimal, and then divide by 100
10
.
31. EEPROM WRITE ENABLE or DISABLE
Write Command: 31
Read Command: 65
Interpret: 0 == EEPROM write is disabled
1 == EEPROM write is enabled
Note: This function is always stored to EEPROM.
Upon a power-up or reset condition the controller performs an initialization of all variables with write
commands and transfers their last written state stored in non-volatile memory (EEPROM) to appropriately
referenced static RAM locations. This action is performed so the controller can run at a quicker pace due
to the slow access of EEPROM. When EEPROM is write enabled, all variables with write commands have
mirror storage of their communicated value. When EEPROM write is disabled, variables with write
commands are not stored except to the appropriate static RAM locations. With EEPROM writes disabled,
you have the ability to change the run-time values and configuration while not affecting the desired
power-up state. Alternatively, this will also alleviate a possible problem by minimizing the number of
writes to any EEPROM location. (The maximum number of writes that can be made is 1,000,000.)
32. INPUT2 SECONDARY SENSOR OFFSET
Write Command: 32
Read Command: 66
Interpret: Value to offset INPUT2 by in order to calibrate sensor.
33. HEAT MULTIPLIER
Write Command: 34
Read Command: 68
Interpret: This multiplies the heater percentage of power to offset its effectiveness. Sending 0 will prevent the
controller from applying any power when heating would otherwise be required. Sending 1.00 would
allow the controller to provide full power for heating as required. To write, first multiply the desired
value by 100
10
, and then convert to hexadecimal. When reading, convert the hexadecimal value to
decimal, and then divide by 100
10
.
34. COOL MULTIPLIER
Write Command: 33
Read Command: 67
Interpret: This multiplies the cooling percentage of power to offset its effectiveness. Sending 0 will prevent the
controller from applying any power when cooling would otherwise be required. Sending 1.00 would
allow the controller to provide full power for cooling as required. To write, first multiply the desired
value by 100
10
, and then convert to hexadecimal. When reading, convert the hexadecimal value to
decimal, and then divide by 100
10
.
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