Reading the process data

Simple process image (compatibility mode)

Supported by all firmware versions.

In the simple process image, each process data word is assigned to a fixed channel and can only read measured values of this channel!

Channel	Control byte	Associated process data word
1	Control byte 1	DataIN1
2	Control byte 2	DataIN2
3	Control byte 3	DataIN3

If a process data index is entered into a control byte in process data mode, the process record is returned in the associated process data word.
The process data indices are listed in chapter Control and status bytes.

Examples for the simple process image

Reading the voltage (RMS value) of phases L1, L2 and L3

Enter process data index 0x1 in control byte 1.
The voltage (rms value) of phase L1 is returned in process data word DataIN1.
Enter process data index 0x1 in control byte 2.
The voltage (rms value) of phase L2 is returned in process data word DataIN2.
Enter process data index 0x1 in control byte 3.
The voltage (rms value) of phase L3 is returned in process data word DataIN3.

Reading the voltage (RMS value) of phase L1, reading the active power of phase L2, and reading the power factor of phase L3

Enter process data index 0x1 in control byte 1.
The voltage (rms value) of phase L1 is returned in process data word DataIN1.
Enter process data index 0x2 in control byte 2.
The effective power of phase L2 is returned in process data word DataIN2.
Enter process data index 0x3 in control byte 3.
The power factor of phase L3 is returned in process data word DataIN3.

Flexible process image

Supported from firmware version 3G by the KL3403-0000, KL3403-0010, KL3403-0025 and KL3403-0026.
Supported from firmware version 4F by the KL3403-0020 and KL3403-0022.
Supported from firmware version 4K by the KL3403-0333.

With the flexible process image, a process data word can read measured values from any channel.
The flexible process image is enabled/disabled with KS2000 or bit R32.3 of the feature register.

Examples for the flexible process image

Reading current (RMS value), voltage (RMS value) and active power of phase L2

Enter 0x10 in control byte 1 (channel index 01_bin, process data index 0000_bin).
The current (RMS value) of phase L2 is returned in process data word DataIN1.
Enter 0x11 in control byte 2 (channel index 01_bin, process data index 0001_bin).
The voltage (rms value) of phase L2 is returned in process data word DataIN2.
Enter 0x12 in control byte 3 (channel index 01_bin, process data index 0010_bin).
The effective power of phase L2 is returned in process data word DataIN3.

Reading current (RMS value), voltage (RMS value) of phase L1 and voltage of phase L2

Enter 0x00 in control byte 1 (channel index 00_bin, process data index 0000_bin).
The current (RMS value) of phase L1 is returned in process data word DataIN1.
Enter 0x01 in control byte 2 (channel index 00_bin, process data index 0001_bin).
The voltage (rms value) of phase L1 is returned in process data word DataIN2.
Enter 0x11 in control byte 3 (channel index 01_bin, process data index 0001_bin).
The voltage (rms value) of phase L2 is returned in process data word DataIN3.