12 INVERTER COMMUNICATION INSTRUCTION
12.3 Inverter parameter read
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12
12.3 Inverter parameter read
IVRD
This instruction reads a parameter of an inverter to the CPU module.
■Descriptions, ranges, and data types
*1 Refer to Serial communication manual or respective inverter manual.
■Applicable devices
*1 T, ST, C cannot be used.
The value of the parameter (s2) is read from an inverter connected to the channel to be used (n) whose station number is (s1),
and output to (d1). For details, refer to Serial communication manual. (For the parameter numbers, refer to the each
inverter manual.)
Three devices are occupied from the device specified in (d2). Make sure that these devices are not used in other controls.
For communication errors, refer to Serial communication manual.
Ladder diagram Structured text
ENO:=IVRD(EN,s1,s2,n,d1,d2);
Operand Description Range Data type Data type (label)
(s1) Inverter station number K0 to 31 16-bit signed binary ANY16
(s2) Inverter parameter number
*1
16-bit signed binary ANY16
(d1) Device number storing the read value 16-bit signed binary ANY16
(n) Channel to be used K1 to 4 16-bit unsigned binary ANY16_U
(d2) Head bit device to which the execution status of the instruction is output Bit ANY_BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s1)
*1
(s2)
*1
(d1)
(n)
(d2)
*1
Error code
(SD0/SD8067)
Description
1810 Channel number specified by (d) is used by another instruction.
2820 The specified device exceeds the range of the corresponding device.
3405 The value specified by (s1) is other than any of K0 to 31.
The value specified by (s2) is outside the allowable range. (Less than K0, K3000 to 9999, or K13000 to 32767)
The value specified by (n) is other than any of K1 to 4.
3600 Channel number specified by (d) is not set by parameters.
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