TE Technology TC-720 - Manual (Page 86)

User Defined Lookup Table
This table, stored in EEPROM, is used to define a profile of the temperature of the sensor versus a reference
voltage. The table consists of 129 integer pointers, ranging from 0 to 128. Pointer 0 corresponds to 0 volts; Pointer
128 corresponds to 5 V. The controller will linearly interpolate values between the indexed values with the
remaining bits. This is a 16 bit signed number.
62. USER DEFINED LOOKUP TABLE POINTER
Write Command: 90
Read Command: NA
Interpret: Range 0 to 128
10
; sets the index pointer for writing or reading a value.
63. USER DEFINED LOOKUP TABLE VALUE WRITING
Write Command: 91
Read Command: NA
Interpret: The USER DEFINED LOOKUP TABLE POINTER must be set first before using this command. The value
for this location ranges from -32767
10
to 32768
10
. This corresponds to a range -327.67 °C to
+327.68 °C.
64. USER DEFINED LOOKUP TABLE VALUE READING
Write Command: NA
Read Command: 92
Interpret: Send the index value with the Read Command to receive back the indexed value.
Example: Send 0 with the 92 command to see the value at TABLE[0].
65. OUTPUT CURRENT COUNTS
Write Command: NA
Read Command: 07
Interpret: Output current reading in A/D counts; approximately 15
10
counts/amp.
66. OUTPUT CURRENT A/D COUNTS OVERCURRENT DETECT VALUE
Write Command: 45
Read Command: 7a
Interpret: Overcurrent compare value of above current counts (greater than or equal trips over current alarm).
67. OUTPUT OVER CURRENT RETRIES BEFORE SHUTDOWN
Write Command: 46
Read Command: 7b
Interpret: Amount of output retries during overcurrent condition allowed before output shutdown. 30000
10
value is constant retry.
68. SPARE (non-volatile) EEPROM MEMORY
Write Command: 80
Read Command: 81
Interpret: When writing, first use the USER DEFINED LOOKUP TABLE POINTER command to set the index.
Read value by sending index with read command request.
Valid index values are 0 through 9 (10 total locations). Valid values are 0 to 255
10
.
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