Mitsubishi MELSEC-WS series, User Manual

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Chapter 3
30
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 Signal Color
Assignment PC-
sided RS-232
D-Sub (9 pins)
1
Reserved
Brown
–
2
RxD
White
Pin 3
3 GND (Internally electrically
connected with connection A2 of
the CPU module)
Blue
Pin 5
4 TxD Black Pin 2
 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.
Table 9:
Pin assignment of the
RS-232 interfacee
on WS0-
CPU0
Note
Note