Omron TJ2-MC64 - PROGRAMMING Programming Manual page 120

BASIC commands
3.2.155 HLM_WRITE
/i
Type Communication command
Syntax HLM_WRITE(port, node, plc_area, plc_offset, length, mc_area,
mc_offset)
Description The HLM_WRITE command writes data from the TJ2-MC64 to a Host Link
Slave by sending a Host link command string containing the specified node of
the Slave to the serial port. The received response data will be written from
either VR or TABLE variables. Each variable will define the word or data that
will be transferred. The maximum data length is 29 words (single frame trans-
fer).
Program execution will be paused until the response string has been received
or the timeout time has elapsed. The timeout time is specified by using the
HLM_TIMEOUT parameter. The status of the transfer can be monitored with
the HLM_STATUS parameter.
Notes:
• When using the HLM_WRITE, be sure to set-up the Host Link Master
protocol by using the SETCOM command.
• The Host Link Master commands are required to be executed from one
program task only to avoid any multi-task timing problems.
Arguments • port
The specified serial port. 1 = RS-232C serial port 1; 2 = RS-422A serial
port 2
• node
The Slave node number to send the Host link command to. Range: [0,
31].
• plc_area
The PLC memory selection for the Host link command. See the table
below.
/i
pc_area value Data area
PLC_DM DM area
(or value 0)
PLC_IR CIO/IR area
(or value 1)
PROGRAMMING MANUAL
Host link command
WD
WR
pc_area value Data area
PLC_LR LR area
(or value 2)
PLC_HR HR area
(or value 3)
PLC_AR AR area
(or value 4)
PLC_EM EM area
(or value 6)
/i
• plc_offset
The address of the specified PLC memory area to write to. Range: [0,
9999].
• length
The number of words of data to be transferred. Range: [1, 29].
• mc_area
The memory selection of the TJ2-MC64 to read the send data from. See
the table below.
/i
mc_area value
MC_TABLE
(or value 8)
MC_VR
(or value 9)
/i
Type Communication command
• mc_offset
The address of the specified TJ2-MC64 memory area to read from.
Range for VR variables: [0, 63999]. Range for TABLE variables: [0,
499999].
Host link command
WL
WH
WJ
WE
Data area
Table variable array
Global (VR) variable array
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