Current version of Remote Control protocol is 4.
Master and slave can exchange with TLV-blocks.
== TLV block ==
||<-32 rowclass="bits">Block Header||
||word #||byte offset||description||
||<:>0||<:>0||Type word (32-bit integer)||
||<:>1||<:>4||Block payload length: '''N''' bytes (32-bit integer)||
||<-32 rowclass="bits">Block Payload||
||<:>2||<:>8||<|3> ''Block payload'' ||
||<:>...||<:>...||
||<:>N+1||<:>4(N+1)||

Version 4 types can be following:
 * RC_MSG_CONFIG_V4 (0xAE2E6D03) - holds JSON which describe current program configuration
 * RC_MSG_CMD_V4 (0xAE2E6D04) - hold text line which describe status of slave program or command that master sends to slave

Slave status:
 * fsm_state - describes Finite-state machine (FSM) of client (ex: "fsm_state Ready")
  * Init
  * Error - client has some error
  * Ready - client ready for Run
  * Configure
  * Starting - client is starting the Run
  * Run - client executing the Run
  * Stopping - client is stoping the Run
  * Calibrate
  * FindAdcDelay
  * CloseGlobTrig
  * WaitSpillEnd
  * OpenGlobTrig
  * PrepareStopping
 * warn/error - client got some warrning/error, format: "error <RunIndex> <RunNumber> <Message>"
 * state/status - client line that describe current status (ex: "status 12 device(s)")
Master commands:
 * start/stop - Perform starting/stopping of Run, format: "start <RunIndex> <RunNumber> <RunUuid>"