Accuthermo Technology Corp.
4.1.4 Prior to Writing Your Own
Most users will find the software come with the system should work just fine. There are about 5% engineers
need to write their own software to integrate with other hardware. To better understand how the parameters
work, Please use the Protocol Section of the software that Accuthermo supplied. You can then try out all the
parameters in tables of 4.2 and see how they interacting each other.
Refer to top right pic; the protocol page of Accuthermo PC software. After read PV and conver
same as value showing on the front panel of the ATEC302 controller. To read PV (process value = your sensor temperature), we
"\01\03\10\00\00\01\80\CA" (Hex code) to send to controller. Here is the explana
a)
First byte \01: the controller address.
b)
Second byte \03: to read from the controller (
c)
3&4 byte \10\00: the x1000 is to read PV+PV
you are reading the PV value.
d)
5&6 byte \00\01: For READ process, these two bytes does not do anything, so we just put two dummy bytes here.
e)
7&8 byte \80\CA: The two byte CRC va
Since read PV is a fixed value in this case, you can just write all 8 bytes showing above. You don't have to calculate CRC ev
PV command.
4.2 Read Only Parameters [
Read Only Parameters:
Read parameter and value from the controller
4.1.4 Prior to Writing Your Own Software
will find the software come with the system should work just fine. There are about 5% engineers
need to write their own software to integrate with other hardware. To better understand how the parameters
tion of the software that Accuthermo supplied. You can then try out all the
parameters in tables of 4.2 and see how they interacting each other.
Refer to top right pic; the protocol page of Accuthermo PC software. After read PV and converted to DegC, it shown 19.7C, and should be the
same as value showing on the front panel of the ATEC302 controller. To read PV (process value = your sensor temperature), we
CA" (Hex code) to send to controller. Here is the explanation of those 8 bytes:
03: to read from the controller (\06 is to write to the controller). In this case, you want to read PV from the controller.
00: the x1000 is to read PV+PV-offset value together. In most of the case, the PV-offset is 0 (unless changed by user). So
01: For READ process, these two bytes does not do anything, so we just put two dummy bytes here.
CA: The two byte CRC value after calculate the prior 6 bytes of data(\01\03\10\00\00\01).
Since read PV is a fixed value in this case, you can just write all 8 bytes showing above. You don't have to calculate CRC ev
4.2 Read Only Parameters [x03] Table
Read parameter and value from the controller
15
will find the software come with the system should work just fine. There are about 5% engineers
need to write their own software to integrate with other hardware. To better understand how the parameters
tion of the software that Accuthermo supplied. You can then try out all the
ted to DegC, it shown 19.7C, and should be the
same as value showing on the front panel of the ATEC302 controller. To read PV (process value = your sensor temperature), we use
06 is to write to the controller). In this case, you want to read PV from the controller.
offset is 0 (unless changed by user). So
01: For READ process, these two bytes does not do anything, so we just put two dummy bytes here.
01).
Since read PV is a fixed value in this case, you can just write all 8 bytes showing above. You don't have to calculate CRC every time for Reading