R500
Series 8 I/O User's Guide
105
April 2017
Honeywell
5. Series 8 I/O Configuration Form Reference
5.1 Overview
When an IOM block is placed on the Project tab in Control Builder, its associated
channel blocks are assigned to the IOM. The following applies to that IOM block:
You assign each IOM to the IOLINK block (that represents the I/O Link network on
which the IOM resides).
All of the common configuration parameters specific to IOMs are located on the
Main Tab of the IOM's configuration form.
"Grayed" parameters are either view-only runtime parameters or non-applicable
configuration parameters.
Rules for Configuring/Reconfiguring redundant IOMs
It is highly recommended that the user plans ahead when configuring IOMs to be
redundant and/or non-redundant.
You must be aware of the following rules.
ATTENTION
1.
If an IOM is used in a Redundant IOTA but has been configured to be
non-redundant, there is a procedure to physically add a partner IOM to
its IOTA and reconfigure it to be redundant while on-control.
2.
If an IOM is used in a non-redundant IOTA there is no procedure or
means at this time to change the installation to use a redundant IOTA
while on-control.
Recommendation
In the case where a customer may require redundancy in the future, it is important to
purchase a redundant IOTA and to configure the IOM as redundant from the start even if
only one physical IOM partner is used. Take note that in this case although harmless, the
user should expect to see a persistent alarm indicating that the secondary is not present.
ATTENTION
There is a potential for a process bump, if any of the steps listed in the
procedures below are skipped.
Potential Recovery
In the event when you elected not to plan for redundancy in this fashion and is in a
situation whereby the need arises for you to reconfigure the IOM to be redundant while
on control, perform the following steps.