Experimental Physics and
Industrial Control System

Folks,

 

asyn R4-43 is now available at https://github.com/epics-modules/asyn.

 

These are the release notes:

 

devEpics

• Change logic for output records with asyn:READBACK so they set udf=0 in the outputcallbackcallback() function, and not in the processXX function. This is needed to correctly clear the UDF status and severity.
• This problem is happening because for EPICS output records the only way to clear a UDF alarm is to put a value into the record, either from an external put from a CA or DB link (in which case code in the dbAccess.c dbPut() routine clears UDF and the record would get processed) or by reading a value through the DOL link during record processing triggered by some other means.
• In both cases UDF will have been cleared before the call to checkAlarms() in the boRecord::process() routine, which is where the UDF field is checked.
• Unfortunately for asyn all output records call the checkAlarms() routine before the device support's write_bo() routine, so clearing UDF in processBo() is too late for this process cycle, the UDF_ALARM has already been registered.
• This also means that if the bo record is configured with non-zero alarms in ZSV or OSV the initial read wouldn't trigger the appropriate STATE_ALARM either, since they get set in that routine as well.

drvAsynUSBTMC

• Add support for output terminator.
• Increase buffer size to 1 MB.
• Add Remote Enable (REN), Local Lockout (LLO), and Go To Local (GTL) support.

asynPortDriver

• Fixed initialization problem for UInt32 parameters. Initially setting a parameter to 0 left the corresponding PV undefined because the callback wasn't called. Thanks to Erico Nogueira for this fix.
• Removed "using std::logic_error" from parameter header files. This is bad practice. This change could potentially break downstream module that would now have to use std::logic_error, rather than just logic_error. This is unlikely since the param classes are essential private to asynPortDriver. Thanks to Luka Krmpotic for this fix.

drvAsynIPServerPort

• Allow specifying an interface to bind the IP server port. The second argument to drvAsynIPServerPortConfigure allows specifying a hostname or IP address for multi-homed machines. If you want to specify any interface, use "localhost:port", an empty host ":port" or the address "0.0.0.0:port". The address has to be an existing interface on the host. If the name cannot be resolved, the call will fail. If you need the loopback interface, use "127.0.0.1:port". Thanks to Lutz Rossa for this.

asynShellCommands

• Provide usage information for asynSetTraceMask and asynSetTraceIOMask. This is helpful for remembering how to specify the bit masks numerically or symbolically. Thanks to Michael Davidsaver for this.

asynManager

• Added asynDisconnected and asynDisabled in strStatus(). Thanks to Kristian Loki for this.

configure/RELEASE

• All external modules are commented out. Users will need to uncomment the ones to be used.

drvVxi11

• Fix potential VXI connection resource leak. Thanks to Freddie Akeroyd for this.

.ci

• Change from Travis to Github Actions. Thanks to Michael Davidsaver for this.
• Add support from sscan, calc, and ipac. Thanks to Freddie Akeroyd for this.

devGPIB and streamSCPI template files

• Changed DB_INSTALLS+= to DB+= to work with recent versions of EPICS.