Mitsubishi Electric WS0-CPU0 Operating Manual page 35

The graphical user interface
Note  A MELSEC-WS safety controller can contain maximally two network interface
modules.
 A MELSEC-WS safety controller can contain maximally twelve I/O modules.
Enable configurations with more than twelve I/O modules
 Using Setting and Monitoring Tool version V1.7.0 or higher you can enable
configurations with up to 22 I/O modules. This feature makes it possible for you to
prepare a common maximum configuration for several similar systems and then to
adapt this configuration to the related system by simply deleting modules that are
not required.
 For configurations containing more than twelve I/O modules, the following
restrictions apply:
– You can not connect to a system and the configuration can not be transferred to
the MELSEC-WS safety controller.
– Simulation is not possible.
 A MELSEC-WS safety controller can only ever contain a maximum of two network
interface modules.
How to enable configurations with more than twelve I/O modules:
 In the Hardware configuration view, click on the Settings icon at the left of the
Configuration area to open the Settings dialog.
 On the General file card, activate the Enable additional XT modules option.
 Click OK.
Chapter 5
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