### Settings of External Device

Use the ladder software "STEP 7 Micro/WIN 32" to perform the communication settings for the S7-200 Series.

1. Click [Communication] in the menu list. Check the connection among PLC (PORT0), the ladder cable (PC/PPI Cable) and the PC, and double-click [Double-Click to Refresh].

2. The [Search for Addresses] dialog box is displayed, and the software automatically scans the PLC. The dialog box is closed when the connection is checked.

3. Select [Type] from [PLC] on the menu bar.

4. The [PLC Type] dialog box is displayed. Select according to the connected PLC type, and click [OK].

5. Click [System Block] in the menu list, and set according to the port (Port0/Port1) to be actually connected to the Display as below.

   Setup Items | Setup Description
   --- | ---
   PLC Address | 2
   Highest Address | 31
   Baud Rate | 187.5k
   Retry Count | 2
   Gap Update Factor | 10

6. When you finish setting, click [OK] and close the dialog box.

7. Click the [Down load] button in the command menu.

8. The [Download] dialog box is displayed. Click [OK].