Siemens SIMATIC PCS 7 Operating Instructions

Protection circuit of AC-actuated coils
AC-actuated coils are connected to varistors or RC elements as shown in the figure.
a
a
a
a

① With varistor
② With RC element
Figure 10-5 Protection circuit of AC-actuated coils
The protective circuit with varistor has the following properties:
● The amplitude of the trip overvoltage is limited but not attenuated.
● The steepness of the overvoltage remains the same.
● The trip delay is low.
The protection circuit with RC elements has the following properties:
● The amplitude and steepness of the trip overvoltage are reduced.
● The trip delay is low.
10.4 Analog input modules
Overview of properties
The table below presents the ET 200PA SMART analog input modules based on their most
important properties.
Table 10-8 ET 200PA SMART analog input modules
Properties Module
AI8x13-bit AI8x16Bit AI16x16Bit AI8xTC/4xRTD
6ES7650-8AE60-xAA0 6ES7 650-8AK60-xAA0 6ES7 650-8AK70-xAA0 6ES7 650-8AR60-xAA0
Number of in‐
puts
8 inputs in 8 channel
groups
8 inputs in 1 channel
group
16 inputs in 1 channel
group
8 inputs in 4 channel
groups
Resolution Can be set for each
channel:
● 12 bits + sign
Can be set for each chan‐
nel:
● 15 bits + sign
Can be set for each chan‐
nel:
● 15 bits + sign
Can be set for each
channel group:
● 9 bits + sign
● 12 bits + sign
● 15 bits + sign
ET 200PA SMART I/O modules
10.4 Analog input modules
ET 200PA SMART
150 Operating Instructions, 06/2019, A5E34192013-AB

Siemens SIMATIC PCS 7 Specifications

General

Brand	Siemens
Model	SIMATIC PCS 7
Category	Control Systems
Language	English