OFFSPEC (spin-echo): SMC300-5 (power supply)

[KathrynBaker]

As an instrument scientist on OFFSPEC, I want to be able to control up to 3 SMC300-5 power supplies.

Acceptance Criteria

• As a scientist I can control 3 SMC300-5 power supplies

Notes

1. This came up as a support call for SECI when they discovered they wanted to run two more than they currently had available there - @davidkeymer extended that code

[KathrynBaker]

Marking as training as this should be a relatively straightforward undertaking to add the extra IOCs

[boeuf-codes]

Creating these IOCs unearthed some problems with some of SM300's macros, see:

• SM300: Issue with definition and use of MSTP macros #7349