Eurotherm: Expose more parameters in OPI to enable better support

[GRyall]

DRAFT - Finishing off now!

Feature Description

As a member of the EEUSG group I would like access to a wide range of Eurotherm PVs remotely in order to offer support.

Explanation

#8756 and #8757 are looking at the remote access aspect of this ticket. However there are some values that would be useful to the EEUSG that we do not currently expose in the Eurotherm OPI.

Additional Information

JN has provided the following List of Eurotherm parameters that are useful to them for support (Modbus address in brackets):

• AutoMan (273)
• PV (1)
• Target Setpoint or (SP) (2)
• Active Output or (OP) (4)
• Proportional Band (P) (6)
• Integral Time(I) (8)
• Derivative Time (D) (9)
• RangeHigh (12)
• RangeLow (11)
• SPHighLimit (111)
• SPLowLimit (112)
• OutputHighLimit (30)
• OutputLowLimit (31)
• Proportional output contribution (214)
• Integral output contribution (55)
• Derivative output contribution (116)
• SBrk (Sensor break status, 0 or 1) (258)

Of these only the following 11 are not currently available in the OPI:

• AutoMan (273)
• Active Output or (OP) (4)
• RangeHigh (12)
• RangeLow (11)
• SPHighLimit (111)
• SPLowLimit (112)
• OutputLowLimit (31)
• Proportional output contribution (214)
• Integral output contribution (55)
• Derivative output contribution (116)
• SBrk (Sensor break status, 0 or 1) (258)

And of those only these nine are not available in the IOC:

• AutoMan (273)
• Active Output or (OP) (4)
• RangeHigh (12)
• RangeLow (11)
• OutputLowLimit (31)
• Proportional output contribution (214)
• Integral output contribution (55)
• Derivative output contribution (116)
• SBrk (Sensor break status, 0 or 1) (258)

The above references Modbus addresses. Whilst we support Modbus, the majority of our Eurotherms use EI-BYSYNCH and not all parameters are available in both. Cross referencing those mod bus addresses in the manual ([group file share]/Manuals/Eurotherm/Eurotherm%20Controller.pdf) gives the following list of EI-BYSYNCH addresses for the 2400 model (note case sensitivity!):

	Modbus	EI-Bisynch
AutoMan	273	mA
Active Output or (OP)	4	WO
RangeHigh	12	QB
RangeLow	11	QC
OutputLowLimit	31	LO
Proportional output contribution	214	Xp
Integral output contribution	55	xI
Derivative output contribution	116	xD
SBrk (Sensor break status, 0 or 1)	258	sb

_{See our Git Workflow.}

@GRyall is double checking if any model other than the 2400 series needs supporting.

Acceptance Criteria

• The IOC is updated to provide access to the new values on both protocols
• All values listed above are added to the IOC (including the two that are already in the IOC)
• Tests and documentation updated to reflect this
• If Eurotherm: Implenent DBWR to expose Eurotherm OPI #8756 is complete or in review, ensure newly exposed Eurotherm values are included there as well.

How to Review

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• Provide verbose instructions for the reviewer to test your changes
• Describe how you have implemented testing for this feature
• Provide screenshots of the feature to help the reviewer if relevant

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...

_{To the reviewer: Make sure to update submodules!}

discussed at planning 12/06/25 at 1:10:00

[GRyall]

I have substantially revised the above to add more detail