Chapter 6 - conversion charts and formulas, Hex chart, Relay status example – Hardy HI 2151/30WC Single-Scale Controller User Manual
Page 52: Relay status example -1, Chapter 6 - conversion charts and formulas 6-1, Chapter 6 - conversions charts and formulas
Chapter 6 - Conversions Charts and Formulas
6-1
CHAPTER 6 - CONVERSION CHARTS AND FORMULAS
Hex Chart
Use the Hex Chart to translate bit values to a hex value.
Relay Status
Example
For example the bit representative of the Relay status byte when set-
point relays 8,5,3, and 1 are on is (01101001). This eight bit value is
represented by two four bit nibbles (0110 and 1001). Looking at the
table we see this is equal to a Hex value of 69.
Bit 3
Bit 2
Bit 1
Bit 0
Hex Value
Bit 7
Bit 6
Bit 5
Bit 4
0
0
0
0
0
0
0
0
1
1
0
0
1
0
2
0
0
1
1
3
0
1
0
0
4
0
1
0
1
5
0
1
1
0
6
0
1
1
1
7
1
0
0
0
8
1
0
0
1
9
1
0
1
0
A
1
0
1
1
B
1
1
0
0
C
1
1
0
1
D
1
1
1
0
E
1
1
1
1
F
TABLE 6-1: HEX CHART
Bit #
Bit Status
Hex
Description
Bit 0
1 = On
9
Relay #8 status (on/off)
Bit 1
0 = Off
Relay #7 status (on/off)
Bit 2
0 = Off
Relay #6 status (on/off)
Bit 3
1 = On
Relay #5 status (on/off)
TABLE 6-2: RELAY STATUS