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6. Explanation of Commands
6.1 Command List
- 94 -
6.1.3 Exclusive Commands 1
Class
Process
unit
Command
sign
Symbol Process details
No.
of
step
Page
FROM
n1 n2 Dn n3
FROM
Reads the data of the buffer
memory of MELSEC intelligent
function unit out to the C6/C64
PLC.
5
304
Intelligent
function
16-bit
TO
n1 n2 Dn n3
TO
Writes the data of C6/C64 PLC
register into the buffer memory of
MELSEC intelligent function unit.
5
304
Un
G.READ
S1 S2 D1 D2
6
308
READ
Un
GP.READ
S1 S2 D1 D2
Reads the word device data of
the designated station out to the
local station.
12
308
Un
G.WRITE
S1 S2 D1 D2
6
308
Bit
WRITE
Un
GP.WRITE
S1 S2 D1 D2
Writes the data of the local
station to the word device data of
the designated station.
12
308
Un
G.SREAD
S2 D1 D2 D3S1
7
308
SREAD
Un
GP.SREAD
S2 D1 D2 D3S1
Reads the word device data of
the designated station out to the
local station.
(With confirmation of the target
station completion.)
13
308
Un
G.SWRITE
S2 D1 D2 D3S1
7
308
Bit
SWRITE
Un
GP.SWRITE
S2 D1 D2 D3S1
Writes the data of the local
station to the word device data of
the designated station.
(With confirmation of the target
station completion.)
13
308
Un S1 D1 D2
G.RIRD
5
318
RIRD
Un S1 D1 D2
GP.RIRD
Read the device data from the
designated station CPU.
(Valid on QnA series Ver.J and
higher.)
11
318
Un S1 D1 D2
G.RIW T
5
318
Transient
command
Bit
RIWT
Un S1 D1 D2
GP.RIWT
Writes the device data to the
designated station CPU.
(Valid on QnA series Ver.J and
higher.)
11
318
OPEN
"Un" S1 S2 D1ZP.OPEN
Open a connection with the client
device to communicate with.
12
322
Bit
CLOSE
"Un" S1 S2 D1ZP.CLOSE
Close the connection with the
client device that is
communicating with.
12
326
BUFSND
"Un"
ZP.BUFSND
S1 S2 S3 D1
Sends data to the client device.
(Fixed-buffer communication)
13
328
Transient
trans-
mission
Bit
BUFRCV
"Un"
ZP.BUFRCV
S1 S2 D1 D2
Reads the data received from the
client device.
(Fixed-buffer communication)
13
332