FX1S-30MR-ES/UL MITSUBISHI, FX1S-30MR-ES/UL Datasheet - Page 162

• Manufacturer Part Number: FX1S-30MR-ES/UL
• Description: PLC, 16 IN, 14 RELAY OUT, 110V/2
• Manufacturer: MITSUBISHI

Specifications of FX1S-30MR-ES/UL

• No. Of Analogue Inputs: 16
• No. Of Analogue Outputs: 14
• Ip/nema Rating: IP10
• Approval Bodies: CE, CUL, UL
• External Depth: 49mm
• External Length / Height: 90mm
• External Width: 60mm
• Mounting Type: Panel

5.4.10
FX Series Programmable Controlers
SFRD (FNC 39)
Points to note:
a) FIFO is an abbreviation for ‘First-In/ First-OUT’.
b) Only n
c) This instruction will always read the source data from the register S
d) This instruction should be used in conjunction with SFWR FNC 38. The n parameter in both
SFRD
FNC 39
(Shift
register read)
Mnemonic
that the first register, the head address (S) is used to contain information about the current
length of the FIFO stack.
instructions should be equal.
-1
pieces of data may be read from a FIFO stack. This is because the stack requires
This instruction
reads and
reduces FIFO
stack- must be
used with SFWR
FNC 38
Function
KnY, KnM,
KnS,
T, C, D,
KnY,
KnM,KnS,
T, C, D
S
Operation:
The source device (S) identifies the head address
of the FIFO stack. Its contents reflect the last entry
point of data on to the FIFO stack, i.e. where the
end of the FIFO is (current position).
This instruction reads the first piece of data from
the FIFO stack (register S
within the stack ‘up’ one position to fill the read
area and decrements the contents of the FIFO
head address (S) by 1. The read data is written to
the destination device (D).
When the contents of the source device (S) are
equal to ‘0’ (zero), i.e. the FIFO stack is empty, the
flag M8020 is turned ON.
KnY, KnM,
KnS,
T, C, D,
KnY,
KnM,KnS,
T, C, D, V, Z
Operands
D
K,H,
Note:
2 n 512
n
+1
+1
), moves all of the data
.
Applied Instructions 5
SFRD,
SFRDP:
7 steps
Program steps
5-40