Communication protocols
PROGRAMMING MANUAL 159
Revision 3.0
Commands
These Host Link commands are supported for the Host Link Master protocol:
/i
HLM_READ HLM_READ reads data from the Host Link slave to either VR or
TABLE memory.
HLM_STATUS HLM_STATUS gives the status of the last command of the Host Link
master.
HLM_TIMEOUT HLM_TIMEOUT defines the Host Link master timeout time.
HLM_WRITE HLM_WRITE writes data to the Host Link slave from either VR or
TABLE memory.
SETCOM SETCOM configures the serial communication port and enables the
Host Link protocols.
BASIC command Description
Type Header code Name Function
I/O memory
reading
RR CIO AREA READ Reads the specified number of
words beginning with the designated
CIO/IR word.
RL LR AREA READ Reads the specified number of
words beginning with the designated
LR word.
RH HR AREA READ Reads the specified number of
words beginning with the designated
HR word.
RD DM AREA READ Reads the specified number of
words beginning with the designated
DM word.
RJ AR AREA READ Reads the specified number of
words beginning with the designated
AR word.
RE EM AREA READ Reads the specified number of
words beginning with the designated
EM word.
I52E-EN-03.book Seite 159 Freitag, 29. Juni 2007 11:55 11
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