Omron DeviceNet Safety, System Configuration Manual

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Allocating Network Bandwidth Usage and Calculating the Best EPI Section 2-2
2-2-4 Example of EPI Calculations
The following network configuration is used for an example of calculating the
EPI.
Conditions
The baud rate is 500 Kbit/s.
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Safety I/O Communications
Example: The NE1A-series Controller sets safety connections between six
DST1-ID12SL-1 Input Terminals and five DST1-MD16SL-1 I/O Terminals. The
default set values are used for all the safety connections, and the EPI is
10 ms.
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Standard I/O Communications
Example: The CJ1W-DRM21 sets the standard connections between six
DRT2-ID16 Input Terminals and five DRT2-OD16 Output Terminals. The
default set values are used, and the communications cycle of the CJ1W-
DRM21 is automatically set but it attempts to operate at a cycle time of about
3.2 ms.