7-13
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Three pins are grouped together to form a channel.
Table 7-1
Channels of the Analog Input Module
Pin
Name
Value
Channel
AI1-U
Voltage input
AI1-I
Current input
Channel 1 (AI1)
AI1-M
Reference potential
AI2-U
Voltage input
AI2-I
Current input
Channel 2 (AI2)
AI2-M
Reference potential
AI3-U
Voltage input
AI3-I
Current input
Channel 3 (AI3)
AI3-M
Reference potential
AI4-U
Voltage input
AI4-I
Current input
Channel 4 (AI4)
AI4-M
Reference potential
Only an analog sensor can be connected to an analog input channel.
Voltage Measurement
Current
Voltage
Reference potential
Nj
Single channel voltage measurement
Figure 7-8
Connection of a Channel for Voltage Measurement
Current Measurement
Current
Voltage
Reference potential
Nj
Single channel current measurement
Figure 7-9
Connection of a Channel for Current Measurement
Channels
Connection to an
Analog Input
C7-621 Analog I/Os
Содержание simatic c7-621
Страница 44: ...2 26 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 ...
Страница 64: ...3 20 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network ...
Страница 74: ...5 4 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Attaching a C7 621 AS i ...
Страница 82: ...6 8 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Digital I Os ...
Страница 100: ...7 18 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os ...
Страница 101: ...8 1 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Maintenance 8 ...
Страница 110: ...A 8 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 General Technical Specifications ...
Страница 123: ...Glossary 1 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary ...
Страница 136: ...Index 4 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Index ...