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Unit Components and Specifications
SECTION 2
2-2
Unit Components
2-2-1
CPU Unit Component Names
Front
view
Bottom-view
7. RS-422/485 port
8. RS-422/485 switch
9. Terminating
Resistance switch
10. I/O connector
11. Relay connector
12. FE-connection
Rear-view
OFF
13. Low battery
detection switch
2-2-2
CPU Unit Component Descriptions
1,2,3..
1. DIP
switch
•
RS-232C and Peripheral Port Settings
Pin 1
Effective Port Settings
OFF
(default)
The ports operate according to the settings in the PLC Setup.
RS-232C port settings: DM 6645 to DM 6649
Peripheral port settings: DM 6650 to DM 6654
ON
The ports operate with the standard communications settings.
•
Operating Mode at
Startup
Pin 2 determines the operating mode at startup only if there isn’t a Program-
ming Device connected to the peripheral port.
Programming Device
connected
Startup mode with
pin 2 OFF (default)
Startup mode with
pin 2 ON
None PROGRAM
mode
RUN
mode
Programming Console
Operating mode set on the Programming
Console’s mode switch
Other device
PROGRAM mode
1. DIP switch
4. PC status indicators
2. Input indicators
3. Output indicators
5. Communications port
6. Communications switch
12
ON
ON
26
Содержание 3G3MV-P10CDT-E
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