Siemens SIMATIC ET 200iSP Operating Instructions Manual page 55

With 32 electronic modules, the current consumption (< 5000 mA) must be checked:
Table 3-5
Electronic modules
Power supply PS 24 VDC/
PS 120/230 VAC
IM 152
8 DI NAMUR
4 DO DC23.1V/20mA SHUT DOWN "H"
4 DO DC17.4V/27mA SHUT DOWN "H"
4 DO DC17.4V/40mA SHUT DOWN "H"
4 DO DC23.1V/20mA SHUT DOWN "L"
4 DO DC17.4V/27mA SHUT DOWN "L"
4 DO DC17.4V/40mA SHUT DOWN "L"
2 DO Relay UC60V/2A
4 AI I 2WIRE HART
4 AI I 4WIRE HART
4 AI RTD
4 AI TC
4 AO I HART
Reserved
WATCHDOG
* Without power supply PS and IM 152
** Operational current consumption of WATCHDOG module = 2 mA x number of connected digital
output modules
Note
The limit values are adhered to in the example.
Result: ET 200iSP station can be operated with this configuration.
Calculation of ET 200iSP power loss
You can calculate the power loss of the ET 200iSP using the following formula:
P
Vtotal
Explanation:
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Calculation table for current output
= x*5W + 1.2*∑
PV_Type_I/O
3.6 Restricted Number of Connectable Electronics Modules
x Number Operational cur‐
of modules rent per module
in mA
x 1 15 mA
x 1 30 mA
x 5 80 mA
x 2 290 mA
x 5 260 mA
x --- 380 mA
x --- 290 mA
x --- 260 mA
x --- 380 mA
x --- 100 mA
x 3 280 mA
x 5 27 mA
x 5 19 mA
x 4 17 mA
x 3 295 mA
x --- ---
x --- 2 mA x DO **
Total Mod‐
ules
=
max. 32*
Configuration options
= Operational current
consumption in mA
= 15 mA
= 30 mA
= 400 mA
= 580 mA
= 1300 mA
= ---
= ---
= ---
= ---
= ---
= 840 mA
= 135 mA
= 95 mA
= 68 mA
= 885 mA
---
= ---
Total Current Consump‐
tion
= 4348 mA
< 5000 mA
55