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Error Flag
The dedicated V-Memory Error location for each Controller is used to report configuration and diagnostic
errors. This location is bit mapped. If any one of the fatal errors is detected at power up, the TB and
24V LEDs will flash back and forth until the error is cleared.
Hexadecimal Weight
0001
0002
0004
0008
0010
0020
0040
0080
0100
0200
0400
0800
1000
2000
4000
8000
Example:
If Error Flag contains 0004 then the starting table address is too high.
Version
The dedicated V-Memory Version location for each Controller holds the Controller's firmware Version
number. The firmware version is written to this location after a reset.
Example
A firmware version 1.01 Controller in slot 4 will return 0101 in V7734.
2.10
Bit Number
Fatal Errors
0
Undefined
1
On if Starting table address below user v-memory
2
On if Starting table address too high
3
On if More than 4 loops enabled
4
On if Starting address is too high for number of loops
5
On if Dedicated V-Memory Configuration Error
6
On if Temperature Controller Configuration Error
7
On if ROM Error, Incorrect Checksum
Warning Errors
8
Undefined
9
Undefined
10
Undefined
11
Undefined
12
Undefined
13
Undefined
14
Undefined
15
On if the LTC CPU has gone through a Watch-Dog
Time-Out
INSTALLATION AND WIRING
Bit Description
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