EPICS Cheat Sheet

Channel Access (CA) command-lines

• caget - get the value of one of more PVs
• caput - change the value of a PV
• camonitor - monitor the value of one or more PVs
• cainfo - print info about a PV, including which host is running the IOC

Example:

$ caget kmp3:m1.{DESC,RTYP,DTYP,VAL}
kmp3:m1.DESC           theta motor
kmp3:m1.RTYP           motor
kmp3:m1.DTYP           asynMotor
kmp3:m1.VAL            60

IOC shell commands

To connect to (disconnect from) the IOC shell, see here:

help [command] - shows available commands or syntax of specified command

dbpr record_name [0-9] - displays fields and values for a given record

dbl - lists all records in an IOC

dbl record_type - lists all records of a specific type in an IOC

dbl record_type "field_list" - lists specified fields (space-separated list) of records of a specific type in an IOC

dbpf pv_name value - change a PV’s value – analogous to caput

dbgf pv_name - read a PV’s value – analogous to caget

epicsEnvShow - prints environment variables

seqShow - shows running sequence programs

seqStop - stops a running sequence program