Omron TJ1-MC04, Programming Manual

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Communication protocols
PROGRAMMING MANUAL 160
Revi
si
on 3.0
The Host Link Master protocol supports the commands only in single frame.
The following table shows how you can use the Host Link protocol with the
BASIC commands, and for which CPU unit operating mode (RUN, MON or
PROG) the command is valid.
/i
I/O memory
writing WR CIO AREA
WRITE Writes the specified data in word
units beginning with the designated
CIO/IR word.
WL LR AREA WRITE Writes the specified data in word
units beginning with the designated
LR word.
WH HR AREA
WRITE Writes the specified data in word
units beginning with the designated
HR word.
WD DM AREA
WRITE Writes the specified data in word
units beginning with the designated
DM word.
WJ AR AREA
WRITE Writes the specified data in word
units beginning with the designated
AR word.
WE EM AREA
WRITE Writes the specified data in word
units beginning with the designated
EM word.
CPU unit
status SC STATUS WRITE Changes the operating mode of the
CPU unit.
Testing TS TEST Returns, unaltered, a single block
that was sent from the master.
PC model
code reading MM PC MODEL
READ Reads the model code of the CPU
unit
Host Link
communica-
tions
processing XZ ABORT
(command only)
Aborts the operation that is per-
formed by a Host Link command,
and returns to the initial status.
** INITIALIZE (com-
mand only)
Initializes the transfer control proce-
dures for all Host Link units.
IC Undefined com-
mand (response
only) This is the response when the com-
mand header code is invalid.
Type Header code Name Function
Note
The Host Link protocol supports only C commands. It does not
support FINS.
Header
code Name BASIC command
required RUN MON PRG
RR CIO AREA READ HLM_READ Valid Valid Valid
RL LR AREA READ HLM_READ Valid Valid Valid
RH HR AREA READ HLM_READ Valid Valid Valid
RD DM AREA READ HLM_READ Valid Valid Valid
RJ AR AREA READ HLM_READ Valid Valid Valid
RE EM AREA READ HLM_READ Valid Valid Valid
WR CIO AREA WRITE HLM_WRITE Not valid Valid Valid
WL LR AREA WRITE HLM_WRITE Not valid Valid Valid
WH HR AREA WRITE HLM_WRITE Not valid Valid Valid
WD DM AREA WRITE HLM_WRITE Not valid Valid Valid
WJ AR AREA WRITE HLM_WRITE Not valid Valid Valid
WE EM AREA WRITE HLM_WRITE Not valid Valid Valid
SC STATUS CHANGE HLM_COMMAND Valid Valid Valid
TS TEST HLM_COMMAND Valid Valid Valid
MM PC MODEL READ HLM_COMMAND Valid Valid Valid
XZ ABORT
(command only)
HLM_COMMAND Valid Valid Valid
** INITIALIZE
(command only)
HLM_COMMAND Valid Valid Valid
I52E-EN-03.book Seite 160 Freitag, 29. Juni 2007 11:55 11