TE Technology TC-36-25-RS485 - Manual (Page 51)

51
29. ALARM LATCH ENABLE
Write Command: 2f
Read Command: 48
Interpret:
1 is latching enabled.
0 is latching disabled.
If ALARM TYPE is equal to 3 then
1 is Computer Alarm On.
0 is Computer Alarm Off.
30. COMMUNICATION ADDRESS
Write Command: 30
Read Command: 49
Interpret:
Range of value 01
16
to ff
16
This is the AA value in the communication string for RS485 version. Address 00
16
and
63
16
(corresponding to address 99
10
) are reserved; do not assign either of these
addresses to a controller.
31. ALARM LATCH RESET
Write Command: 33
Read Command: NA
Interpret:
Send this command to reset the alarm latches.
32. CHOOSE SENSOR FOR ALARM FUNCTION
Write Command: 31
Read Command: 4a
Interpret:
0 is for the Control Sensor Input.
1 is for the Input2 Secondary Input.
33. CHOOSE °C or °F TEMPERATURE WORKING UNITS
Write Command: 32
Read Command: 4b
Interpret:
0 is °F
1 is °C
34. EEPROM WRITE ENABLE
Write Command: 34
Read Command: 4c
Interpret:
0 is disable EEPROM writes
1 is enable EEPROM writes
Function Description: Upon a power‐up or reset condition, the controller performs an initialization
of all command variables that have write commands by transferring the
last values stored in non‐volatile memory (EEPROM) to appropriately
referenced static RAM locations. This action is performed so that the
controller can run faster (RAM is faster than ROM). When the “EEPROM
WRITE ENABLE” is enabled, any changes in the run‐time values of the
command variables are also stored in EEPROM as well in RAM and thus will
be recalled upon a power‐up or reset condition. When the “EEPROM WRITE
ENABLE” is disabled, run‐time values are stored only in RAM. This setting
gives you the ability to change run‐time values without changing your desired
power‐up settings. This will also alleviate a possible problem since the
maximum number of writes to an EEPROM location is 1,000,000.