Delta OHM HD45 Series Manual page 54

Command
Value
Function: 06h
Data: 0000h to FFFFh
0000h to FFFFh
Response
Value
Function: 06h
Data: 0000h to FFFFh
0000h to FFFFh
A parameter value is stored in a 16-bit register and always requires, therefore, a
2-byte length. The most significant byte precedes the least significant one.
Table 8.C (page 46) lists all available parameters with their register number.
The write 06h function changes only the value in the RAM memory, the
change is therefore cancelled in case of power supply failure in the
instrument. To make any parameter changes permanent, the "Parameter permanent
storage" command shall follow the parameter change (function 05h).
To change parameters protected by an access code, you must first write the code in
the configuration registers from address 10000 to 10005. After changing the
parameters, modify the content of the above mentioned registers to disable the code.
If the request involves writing a parameter not included in Table 8.C, the instrument
replies with the following error message:
Response
Value
Function: 86h
Data: 02h
Changing several consecutive configuration parameters (function 10h)
Function code 10h allows to change the value of several parameters with the same
command, provided that parameters are included in consecutive registers.
The first configuration register address and the number of consecutive parameters to
be changed, along with the number of bytes with the new values and the new
parameter values are indicated in the request data field.
Since, in the protocol, registers are numbered starting from 1, but data are addressed
starting from 0, a register address is equal to the register number decremented by 1.
The instrument response contains the address of the first modified register and the
number of modified consecutive registers.
Therefore, command and Response Function and Data fields have the following
format:
Length Description
1 byte Parameter write command
2 bytes Parameter address
2 bytes New parameter value
Length Description
1 byte Parameter write command
2 bytes Parameter address
2 bytes New parameter value
Length Description
1 byte Error in parameter writing
1 byte Operation involved a non-existent
parameter (Tab. 8.F page 59)
- 54 -