Delta OHM HD45 Series Manual page 56

Command
Value
Function: 10h
Data: 27h
10h
00h
06h
0Ch
00h
02h
00h
04h
00h
00h
00h
04h
00h
07h
00h
01h
The instrument replies by:
Response
Value
Function: 10h
Data: 27h
10h
00h
06h
The instrument compares the written access code with the one stored in the internal
memory; if they are equal, it allows parameter change.
From Table 8.C, we obtain that the initial and full scale values for the CO
output are stored in registers number 0076 and 0077 respectively. In order to write
the two parameters values, the request will have to include:
• address (= number - 1) of 1
• number of parameters to change (2 = 0002h)
• number of bytes for the values (4 = 04h)
• values to be written (350 = 015Eh, 1200 = 04B0h)
Consequently, the command format will be:
Length Description
1 byte Parameters write command
Address of 1
2 bytes
Address of 1
6 parameters to be written (MSB)
2 bytes
6 parameters to be written (LSB)
1 bytes 12 bytes of values
st
1
2 bytes
st
1
nd
2
2 bytes
nd
2
rd
3
2 bytes
rd
3
th
4
2 bytes
th
4
th
5
2 bytes
th
5
th
6
2 bytes
th
6
Length Description
1 byte Parameters write command
Address of the 1
2 bytes
Address of the 1
6 parameters written (MSB)
2 bytes
6 parameters written (LSB)
st
parameter register (0075 = 004Bh)
- 56 -
st
code char. (MSB)
st
code char. (LSB)
character value (MSB)
character value (LSB)
character value (MSB)
character value (LSB)
character value (MSB)
character value (LSB)
character value (MSB)
character value (LSB)
character value (MSB)
character value (LSB)
character value (MSB)
character value (LSB)
st
code char .(MSB)
st
code char. (LSB)
analog
2