Channel Type for Analog Inputs 1–4

General

The selection voltage (0 = Default) or current (1) is required due to the different reference values for current and voltage.

Bit

Nibble

Description

0

Low-order nibble (4 bit)

0 = Channel 1: voltage signal

1 = Channel 1: current signal

1

0 = Channel 2: voltage signal

1 = Channel 2: current signal

2

0 = Channel 3: voltage signal

1 = Channel 3: current signal

3

0 = Channel 4: voltage signal

1 = Channel 4: current signal

4

Higher-quality nibble (4 bit)

0 = Channel 1: 0...20 mA current signal

5

0 = Channel 2: 0...20 mA current signal

1 = Channel 2: 4...20 mA current signal

6

0 = Channel 3: 0...20 mA current signal

1 = Channel 3: 4...20 mA current signal

7

0 = Channel 4: 0...20 mA current signal

1 = Channel 4: 4...20 mA current signal

NOTE: By setting the corresponding bit in the higher-quality nibble, the selection of the 4...20 mA range is possible for the current pre-selection.

General description for the bit 7-0 assignment

Selection current/voltage

Bit 7...Bit 0

Meaning

0000000x

Configure the output 01 in the low-order nibble:

Bit 0 is set to 0: Voltage signal

Bit 0 is set to 1: Current pre-selection

000000x0

Configure the output 02 in the low-order nibble:

Bit 1 is set to 0: Voltage signal

Bit 1 is set to 1: Current pre-selection

000x0001

Configure the output 01 by the current pre-selection in the higher-quality nibble:

Bit 4 is set to 0: 0x01...0...20 mA

Bit 4 is set to 1: 0x11...4...20 mA

00x00010

Configure the output 02 by the current pre-selection in the higher-quality nibble:

Bit 5 is set to 0: 0x02...0...20 mA

Bit 5 is set to 1: 0x22...4...20 mA

Examples for the bit 7-0 assignment

Selection current/voltage

Bit 7 ... Bit 0

Meaning

00000000

Output 01 to 04: Configured voltage signal +/–10 Vdc

00000001

Output 01: Configured current signal 0...20 mA

Output 02 to 04: Configured voltage signal +/–10 Vdc

00010001

Output 01: Configured current signal 4...20 mA

Output 02 to 04: Configured voltage signal +/–10 Vdc

00000110

Output 02 and 03: Configured current signal 0...20 mA

Output 01 and 04: Configured voltage signal +/–10 Vdc

01100110

Output 02 and 03: Configured current signal 4...20 mA

Output 01 and 04: Configured voltage signal +/–10 Vdc