Response To Interface Messages - YOKOGAWA wt1600 User Manual

1.6

Response to Interface Messages

Response to Interface Messages
What is an Interface Message?
1-6
Response to a uni-line message
IFC (Interface Clear)
Clears the talker and listener. Stops output if data is being output.
REN (Remote Enable)
Switches between remote and local modes.
IDY (Identify) is not supported.
Response to a multi-line message (address command)
GTL (Go To Local)
Switches to local mode.
SDC (Selected Device Clear)
Clears the program message (command) which is currently being output. Also clears the
output queue (page 6-5).
*OPC and *OPC? will be disabled if they are currently being executed.
*WAI and COMMunicate:WAIT will be stopped immediately.
GET (Group Execute Trigger)
Operates in the sameway as the TRG command.
PPC (Parallel Poll Configure) and TCT (Take Control) are not supported
Response to a multi-line message (universal command)
LLO (Local Lockout)
Invalidates the LOCAL on the front panel to disable switching to local mode.
DCL (Device Clear)
Same as SDC
SPE (Serial Poll Enable)
Sets the talker function to serial poll mode for all equipment connected to the
communications bus. The controller performs polling on equipment sequentially.
SPD (Serial Poll Disable)
Clears serial poll mode as the talker function for all equipment connected to the
communications bus.
PPU (Parallel Poll Unconfigure) is not supported.
An interface message is also called an interface command or bus command, and is
issued by the controller. Interface messages are classified as follows.
Uni-line messages
Messages are transferred through a single control line. The following three types of uni-
line message are available.
IFC (Interface Clear)
REN (Remote Enable)
IDY (Identify)
IM 760101-11E