By Siemens AG
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Extra resources for SIMATIC - S7-200 Programmable Controller
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3-30 S7-200 Programmable Controller System Manual C79000-G7076-C230-02 Installing and Using the STEP 7-Micro/WIN Software Viewing a Program in Ladder Logic or Statement List You can view a program in either ladder or STL by selecting the menu command View " STL or View " Ladder, as shown in Figure 3-24. When you change the view from STL to ladder and back again to STL, you may notice changes in the presentation of the STL program, such as: S Instructions and addresses are changed from lower case to upper case.
To force a new value for a variable, enter the desired value in the “Change Value” column and press the Force button. 5. To view all currently forced variables, click the Read Force button. 6. To unforce all currently forced variables in the CPU, click the Unforce All button. Editing Addresses To edit an address cell, use the arrow keys or mouse to select the cell you want to edit. S If you begin typing, the field clears and the new characters are entered. S If you double-click the mouse or press F2, the field becomes highlighted and you can use the arrow keys to move the editing cursor to the place that you want to edit.
14. In the Remote Modem Configuration tab, in the Selected Modem list box, choose Multi Tech MultiModemZDX MT1932ZDX. 15. Click the “Program Modem” button. This action transfers the parameters into a memory chip in the remote modem. 16. If you want to test your remote modem to see if it is programmed correctly, click the “Test Modem” button. 17. Click the “OK” button. The Communications dialog box appears again. Configure Modems Local Modem Configuration Remote Modem Configuration General Information Selected Modem: Multi Tech MultiModemZDX MT1932ZDX Dial Options Disconnect Disconnect Use Use DTP DTP Initialize: AT&F0%E5=1&E12M0X3 Prefix: ATDT Suffix: Use Use Command Command Command: ^M ATH0 Command Strings Set 11 Bit Mode: Set Baud Rate: Flow Control $EB11 $SB Transmitter None Receiver None Status: Program Modem OK Test Modem Cancel Figure 3-17 Remote Modem Configuration Tab of the Configure Modems Dialog Box S7-200 Programmable Controller System Manual C79000-G7076-C230-02 3-23 Installing and Using the STEP 7-Micro/WIN Software 18.