Siemens SIMATIC ET 200iS, Manual

Page: 65 / 434

Configuration Options
ET 200iS Distributed I/O Station
A5E00087831-02
4-13
Number of Electronics Modules
Each ET 200iS station consists of a maximum of 32 electronics modules. These
include digital and analog electronics modules.
The actual number of electronics modules is limited by the current of the power
supply module PS.
The limit value for the maximum permitted current is < 4300 mA. This value
must not be exceeded.
•
ET 200iS with up to 15 electronics modules:
The current consumption is < 4300 mA. The configuration is OK.
•
ET 200iS with 16 to 32 electronics modules:
You must check the maximum current consumption of the electronics modules
using the following calculation table:
–
Multiply the current consumption per module by the number of modules and
enter the values in the columns x Number of Modules and = Current
Consumption in mA .
–
Add all modules and enter the value in the Total Modules box (maximum of
32 electronics modules)
–
Add the current consumption and enter the value in the Total Current
Consumption box (< 4300 mA)
Table 4-4 Calculation Table for Current Consumption
Electronics
Modules
Current
Consumption
per Module in
mA
x Number of
Modules
= Current Consumption in
mA
Enter the values in these columns!
2DO DC25V/25mA x =
2AI I 2WIRE x =
2AI I 2WIRE HART x =
2 AO I x =
2AO I HART
280 mA
x =
4DI NAMUR 140 mA x =
2AI I 4WIRE x =
2AI I 4WIRE HART x =
2AI RTD x =
2AO TC
70 mA
x =
Total Modules
=
Total Current Consumption
=
max. 32 modules < 4300 mA