Nachi RMU20-20, Instruction Manual

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5.3Settings for the safety PLC
5-6
9 Make the setting of "IO Connection". Select the "Connection" tab.
- Set the following values.
Item Setting value
Input Assembly Instance Set the value of "768 + (The value that is
set in the "Safety Input -> Size")
For example, is the Size is 8 bytes, input
776.
Output Assemble Instance 1024
Safety Input
Size Set the size of the input data.
Because this is the setting of the input for
the PLC, set the value of "Output bytes" of
the RMU.
Input Assembly Instance 1024
Output Assemble Instance Set the value of "896 + (The value that is
set in the "Safety Output -> Size")
Safety Output
Size Set the size of the output data.
Because this is the setting of the output
from the PLC, set the value of "Input
bytes" of the RMU.
Configuration Assembly Instance 1024
- Press the "OK" button.
10 Select the "Safety" tab.
>> The following screen will show up.
- Set a value of 50ms or more for the " Safety Input → Requested Packet Interval (RPI)(ms)"
- Turn OFF the check box of "Configuration Signature"
- Press "OK" at last.
IMPORTANT
The minimum communication speed of the RMU is 50ms. However, depending on the
environment of the network (communication speed), there is a possibility in which the
RMU cannot respond in time. Setup the appropriate communication cycle of the network
and perform the risk assessment for the setting in advance.