Refresh Device Read (In 1-Bit Units) - Mitsubishi Electric MELSEC-Q/L Programming Manual

Refresh device read (in 1-bit units)

S(P).REFDVRDB
High
Basic
Process
performance
• QnUD(H)CPU, QnUDE(H)CPU: the serial number (first five digits) is "14072" or later
• QnUDVCPU: the serial number (first five digits) is "16043" or later.
• Built-in Ethernet port LCPU: Supported
• Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, L02SCPU, and L02SCPU-P cannot be used.
S.REFDVRDB
SP.REFDVRDB
n1: Start I/O number (0H to FEH) (BIN 16-bit)
(S1): Start number of the device stored control data (device name)
(D1): Start number of the device stored read data from the refresh device assigned the device specified in (S1)+0 and (S1)+1 (device name)
n2: Number of read points (1 to 2147483647) (BIN 32-bit)
(D2): Start number of the bit device which turns on for 1 scan by the instruction completion. (D1)+1 also turns on at the error completion (bit).
Setting Internal device
data
Bit
n1 
(S1) 
*2

(D1)

n2
*2

(D2)
*1 The first 3 digits of the hexadecimal 4 digits which represent the start I/O number.
*2 Local devices and the devices designated for individual programs cannot be used.
Processing details
• The contents of the data stored in the area starting from (S1) are as indicated below.
Device Item
(S1)+0 Station number
(S1)+1 Type
(S1)+2 Offset
(S1)+3
• Instruction execution possibility of an execution type for each program.
• Enabled: Initial program and scan execution type program
• Disabled: Fixed scan execution type program and interrupt program
• To read data from a refresh device, the data reflection to the station number specified by the instruction is executed at the
timing for the auto refresh.
8 INSTRUCTIONS FOR DATA LINK
838
8.3 Refresh Device Write/Read Instructions
Ver. Ver.
Redundant
Universal LCPU
Command
Command
*1
of the master station controlling the station assigned the refresh device which reads data
R, ZR
Word
 
 
 
 
 
Setting contents
Station number for the station assigned the refresh device which reads data.
When the link special relay (SB) is specified as type of (S1)+1, the setting is disabled.
Type of the refresh device which reads data
• 1: Remote input (RX)
• 2: Remote output (RY)
• 3: Link special relay (SB)
Offset from the head of the refresh device assigned the device specified in (S1)+0 and (S1)+1
S.REFDVRDB
SP.REFDVRDB
J\ U\G
Bit Word





n1 S1 D1 n2 D2
n2
n1 S1 D1 D2
Zn Constant
K, H





Setting range
1 to 120
1 to 3
0 to 2147483647
Others




