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Table 9:
Pin assignment of the
RS-232 interfacee on WS0-
CPU0
Note
Note
Product description
RS-232 interface
The CPU module furthermore has an RS-232 interface with the following functions:
Transferring the configuration from the Setting and Monitoring Tool to the memory
plug
Uploading the configuration from the memory plug to the Setting and Monitoring
Tool
Diagnostics of the MELSEC-WS safety controller with the Setting and Monitoring
Tool
Plug/socket
Pin
1
2
3
4
If the RS-232 interface at the CPU module is connected permanently for usage as
an alternative to a network module, the maximum permissible cable length is 3 m.
Avoid ground loops between the GND of the RS-232 interface and the connection
A2 of the CPU module, e.g. by using optocouplers.
3.6
CPU module WS0-CPU1
3.6.1
Description
The WS0-CPU1 module has the same functions as the WS0-CPU0. Please observe
the notes in Section 3.6.
The CPU module WS0-CPU1 can only be operated together with the memory plug
WS0-MPL0.
In addition this module has 2 EFI interfaces. If SICK EFI-compatible devices are
connected, the following additional functions can be used:
Transferring the configuration from the Setting and Monitoring Tool to the memory
plug and to the connected SICK EFI-compatible devices
Uploading the configuration from the memory plug and the connected SICK EFI-
compatible devices to the Setting and Monitoring Tool
Diagnostics of the MELSEC-WS safety controller and the connected SICK EFI-
compatible devices with the Setting and Monitoring Tool
Process data exchange between CPU module and SICK EFI-compatible devices.
Connection of up to four WS0-CPU1 modules as a Flexi Link system (see Section
4.7).
For further information about EFI interfaces refer to Section 5.1.
Signal
Reserved
RxD
GND (Internally electrically
connected with connection A2 of
the CPU module)
TxD
Chapter 3
Assignment PC-
sided RS-232
Color
D-Sub (9 pins)
Brown
–
White
Pin 3
Blue
Pin 5
Black
Pin 2
30
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Troubleshooting
