YOKOGAWA F3LR02-0N, User Manual

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B6-5
IM 34M06H45-01E 7th Edition : Aug.30, 2019-00
B6.2 Shutdown Output on Transmission
Channel Error Function
B6.2.1 Overview of Shutdown Output Function
The Fiber-optic FA-bus Type 2 module is equipped with a function, which shuts down
the output of the I/O module of a substation when a transmission channel error occurs.
This function prevents an error in the Fiber-optic FA-bus type 2 or a powered-off main
unit or a powered-off Daisy chain upstream unit from affecting the entire system or
resulting in hazardous or unstable system operation.
For instance, when a cable discontinuity occurs, the module detects a transmission
channel error and immediately turns off the output signals of each I/O module to
minimize risks.
A transmission channel error that occurs in one location can be propagated to other
units to shut down the I/O modules of substations connected to the channel.
The shutdown output on transmission channel error function is available only for
configurations with one CPU module (not a multi-CPU system).
Note
- This function is not available in a multi-CPU configuration.
- When using F3SP05, F3SP08, F3SP21, F3SP25 and F3SP35 CPU modules (Rev.
8 or later), this function is only available for output modules with 32 outputs or less.
- When using CPU modules F3SP22, F3SP 28, F3SP38, F3SP53, F3SP58, F3SP59,
F3SP66, F3SP67, F3SP71 or F3SP76, this function is available for output modules
with 32 outputs or less, as well as F3YD64-1F, F3WD64-3F, F3WD64-4F, and
F3YD64-1P.
- Do not enable the Shutdown Output function in a loop configuration.
B6.2.2 Shutdown Output Function Setup
SW1 Condition Switch
of F3LR02
[Output When Stopped] setting
in [DIO Setup]
of CPU Module
’s Configuration
To shutdown output ON (Shutdown) (default) Reset (default)
To hold output
*1
OFF (Hold) Hold
See Also B4.2.3 B6.3.2
*1: Continues operation if a transmission channel is secured and system operation is to be continued.