I have seen a couple times that when two SIM928 voltage sources are used they can start working in a funny way. This seems to occur after an error is thrown by the SIM928 server reporting that the voltage could not be read. Sometimes it recovers properly but sometimes only one of the SIM928 sources is responsive to commands. If you start a new connection to the labrad (run a new experiment), the other source will behave properly but the first one will not be responsive.
Restarting the GPIB, SIM900 and SIM928 solves the issue. There should be a setting in SIM900 server that preserves the states of the SIM devices but clears the communication to the devices. This setting should be easily accessible to the other SIM servers, including SIM928. Currently, if SIM928 can't read the voltage it tries to read again, which apparently is not enough. @roboguy222 Any thoughts here?
I have seen a couple times that when two SIM928 voltage sources are used they can start working in a funny way. This seems to occur after an error is thrown by the SIM928 server reporting that the voltage could not be read. Sometimes it recovers properly but sometimes only one of the SIM928 sources is responsive to commands. If you start a new connection to the labrad (run a new experiment), the other source will behave properly but the first one will not be responsive.
Restarting the GPIB, SIM900 and SIM928 solves the issue. There should be a setting in SIM900 server that preserves the states of the SIM devices but clears the communication to the devices. This setting should be easily accessible to the other SIM servers, including SIM928. Currently, if SIM928 can't read the voltage it tries to read again, which apparently is not enough. @roboguy222 Any thoughts here?