● Suffix code on CPU module
Consider whether the suffix code on CPU module of the in-house test equipment
differ from the suffix code for target equipment.
Compare the suffix code on CPU module of the in-house test equipment against the
suffix code for target equipment, and check for any debugging problem.
Debugging Problem Example 1
To create a using NPAS POU application, an FCN-500 extended type (with
NPAS license) was purchased for the target equipment, but the NPAS POU
license was not included in the FCN-500 standard type for the in-house test
equipment.
Debugging Problem Example 2
As there is no need to use NPAS_POU, NFCP501 standard type (without NPAS
license) was purchased for the target equipment. However, the in-house
development equipment has FCN-500 extended type (with NPAS_POU license),
and an engineer created an application using NPAS_POU without realizing that
FCN-500 standard type (without NPAS_POU license) was purchased for the
target equipment.
In this example, the FCN-500 of the in-house equipment ran normally during
function test as an NPAS_POU license was present.
However, when the application was moved to the target equipment, the FCN-500
no longer runs and it was necessary to either fix the application or purchase an
FCN-500 extended type for the target equipment.
● Installed I/O Modules
As described in Section 5.5.1, “Checking CPU Load,” CPU load includes I/O module
access.
If the I/O modules installed on in-house test equipment differ from those to be
installed on the target equipment, an accurate CPU load cannot be reflected so CPU
load checking cannot be done on the in-house test equipment.
● Duplexed Parts
In a STARDOM system, the CPU of the FCN-500, the power supply module, the E2
bus/SB bus, the control network (Ethernet) and the communication application can
be duplexed.
However, parts required to be duplexed in the system may not be duplexed in the in-
house test equipment.
In such cases, investigate whether there is any problem with performing function
tests without duplexing, and how to perform switchover test for the duplexed parts.
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