Downloading And Monitoring The Sample Program; Downloading The Project To The Pds 210; Using The Ladder Editor To Monitor The Status Of The Program - Siemens Simatic S7-200 CPU 210 System Manual

3.8

Downloading and Monitoring the Sample Program

Once you have downloaded your program to the PDS 210, you can use the Debug features
to monitor or debug the operation of your program.

Downloading the Project to the PDS 210

The PDS 210 must be in STOP mode for you to download a program. To download your
program, select the menu command Project
you whether or not the download operation was successful.
Note
STEP 7-Micro/WIN does not verify that your program uses memory or I/O addresses that
are valid for the PDS 210 or the CPU 210. If you attempt to download a program that uses
invalid addresses or program instructions that are not supported by the PDS 210, the
PDS 210 rejects the attempt to download the program and displays an error message.
You must ensure that all memory locations, I/O addresses, and instructions used by your
program are valid for the PDS 210 and CPU 210.

Using the Ladder Editor to Monitor the Status of the Program

Ladder status shows the current state of events in your program. Reopen the Ladder Editor
window, if necessary, and select the menu command Debug
If you have an input simulator connected to the input terminals on your CPU, you can turn on
switches to see power flow and logic execution. For example, if you turn on switch I0.2, the
power flow for Network 1 will be complete when timer T0 is greater than or equal to 600. The
network will look like the one shown in Figure 3-22: M0.1 and Q0.3 are set to 1, and M0.2 is
reset to 0.
STEP 7-Micro/WIN - c:\microwin\house.prj
Project Edit View CPU Debug Tools Setup Window Help
Contacts
Network 1
I0.3
T0
>=I
+600
Figure 3-22 Monitoring Status of the First Network
S7-200 Programmable Controller, CPU 210
C79000-G7076-C235-01
Debug
Execute Scans...
Ladder Status On
Normally Open
F2
Sound the alarm!
M0.1
S
1
I0.2
Q0.3
S
1
M0.2
R
Getting Started with a Sample Program
Download... . An information message tells
Ladder Status On.
F3
F4 F5 F6 F7 F8 F10
3-23