Siemens SIMATIC Operating Instructions Manual page 52

Fail-Safe Connection Modules
7.2 CM IO 12xM12 Fail-Safe Connection Module for EM 4/8 F-DI/4-DO DC24V/2A PROFIsafe
Terminal assignment
The terminal assignment depends on which electronic module is being used.
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Block Diagram
The following figure presents the block diagram of the CM IO 12 x M12 connection module.
Figure 7-2
Technical specifications
Dimensions and Weight
Dimensions W x H x D (mm)
Weight
52
. . .
Block Diagram of CM IO 12xM12 Connection Module
Terminal Designation
X1 1. M12 circular socket
connector
X2 2. M12 circular socket
connector
X3 3. M12 circular socket
connector
X4 4. M12 circular socket
connector
X5 5. M12 circular socket
connector
X6 6. M12 circular socket
connector
X7 7. M12 circular socket
connector
X8 8. M12 circular socket
connector
X9 9. M12 circular socket
connector
X10 10. M12 circular socket
connector
X11 11. M12 circular socket
connector
X12 12. M12 circular socket
connector
90 x 130 x 39
18.70 oz
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02